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The ultimate benchmark in the world of motorsport, SADEV designs and manufactures high-technology sequential gearboxes and transmissions. Optimiz Access is your premier distributor for the SADEV range dedicated to Renault Sport rally and circuit vehicles (Clio Cup, R3, Twingo R2, Megane N4).

SADEV: Competition Transmission Excellence at Optimiz Access

For decades, the name SADEV has resonated in paddocks and service parks as synonymous with performance, reliability, and cutting-edge engineering. As the specialist in motorsport transmissions, SADEV equips champions across all disciplines, from rally to circuit racing and rallycross.

Choosing a SADEV transmission means opting for proven technical solutions: dog-ring sequential gearboxes, high-performance limited-slip differentials, and impeccable machining quality, ensuring ultra-fast gear shifts and maximum endurance under stress.

Your SADEV Partner for the Renault Sport Range

At Optimiz Access, we share this demand for performance. Our expertise allows us to support you in the maintenance, servicing, and evolution of your SADEV transmissions. We distribute the complete range of spare parts and complete gearboxes specifically developed for Renault competition vehicles.

Find on this page all SADEV references adapted to the following models:

  • Renault Clio 2 X65 Cup and Clio Gr N
  • Renault Clio 3 X85 Cup
  • Renault Clio R3 (Access, Max)
  • Renault Twingo R2
  • Renault Megane N4

Whether you are looking for a revision kit, replacement gears, output flanges, or a complete sequential gearbox, our catalog ensures you find the original SADEV part needed to keep your vehicle at the peak of its performance.

There are 118 products.

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Sadev F1903051 Limited Slip Differential Cover for Renault Clio 2 Gr N (ST66 Gearbox)Sadev F1903051 Limited Slip Differential Cover for Renault Clio 2 Gr N (ST66 Gearbox)
      An essential competition part, the Sadev F1903051 Limited Slip Differential Cover is designed to ensure perfect sealing and protection for the differential of your Renault Clio 2 Gr N ( Sadev ST66 gearbox). A failure of this component could compromise the entire...
      €288.46Price
      Sadev F1903051 Limited Slip Differential Cover for Renault Clio 2 Gr N (ST66 Gearbox)Sadev F1903051 Limited Slip Differential Cover for Renault Clio 2 Gr N (ST66 Gearbox)
          An essential competition part, the Sadev F1903051 Limited Slip Differential Cover is designed to ensure perfect sealing and protection for the differential of your Renault Clio 2 Gr N ( Sadev ST66 gearbox). A failure of this component could compromise the entire...
          €288.46Price
          Grille de protection boite à crabot sadev Clio 2 Gr N
              The Sadev F1903052 protection guard is an essential safety component for the reliability of the ST66 dog-ring gearbox in your Renault Clio 2 Gr N . It protects vital differential components against debris and external shocks, thus avoiding costly damage to the transmission . ...
              €51.11Price
              Grille de protection boite à crabot sadev Clio 2 Gr N
                  The Sadev F1903052 protection guard is an essential safety component for the reliability of the ST66 dog-ring gearbox in your Renault Clio 2 Gr N . It protects vital differential components against debris and external shocks, thus avoiding costly damage to the transmission . ...
                  €51.11Price
                  SADEV F1908004 Primary Shaft for Renault Clio 3 Cup GearboxSADEV F1908004 Primary Shaft for Renault Clio 3 Cup Gearbox
                      Do you own a Renault Clio 3 Cup and demand excellence? Stop risking the breakdown of your sequential gearbox on the track! This reinforced SADEV primary shaft is the essential competition part to guarantee the reliability and durability of your transmission. Specifically designed for...
                      €34.68Price
                      SADEV F1908004 Primary Shaft for Renault Clio 3 Cup GearboxSADEV F1908004 Primary Shaft for Renault Clio 3 Cup Gearbox
                          Do you own a Renault Clio 3 Cup and demand excellence? Stop risking the breakdown of your sequential gearbox on the track! This reinforced SADEV primary shaft is the essential competition part to guarantee the reliability and durability of your transmission. Specifically designed for...
                          €34.68Price
                          SADEV F9001022 Primary Shaft Bolt for Renault Clio 2 X65 Cup ST75 Sequential GearboxSADEV F9001022 Primary Shaft Bolt for Renault Clio 2 X65 Cup ST75 Sequential Gearbox
                              Do not take the risk of a catastrophic failure of your sequential gearbox. Without this SADEV Primary Shaft Bolt (Ref. F9001022 ), you lose the assurance that your ST75 gearbox on your Clio 2 X65 Cup operates at its maximum performance level and reliability . This SADEV ...
                              €32.51Price
                              SADEV F9001022 Primary Shaft Bolt for Renault Clio 2 X65 Cup ST75 Sequential GearboxSADEV F9001022 Primary Shaft Bolt for Renault Clio 2 X65 Cup ST75 Sequential Gearbox
                                  Do not take the risk of a catastrophic failure of your sequential gearbox. Without this SADEV Primary Shaft Bolt (Ref. F9001022 ), you lose the assurance that your ST75 gearbox on your Clio 2 X65 Cup operates at its maximum performance level and reliability . This SADEV ...
                                  €32.51Price
                                  Sur commande ou en cours de réappro
                                  €104.40 Price
                                  Sur commande ou en cours de réappro
                                  €104.40 Price
                                      Do not risk contamination of your sequential gearbox. Without this new SADEV clutch guide tube seal (Ref. F0073031 , sealing part), you lose the vital isolation against impurities and moisture, threatening the longevity of your Clio 2 X65 Cup's ST75-14 gearbox . This small...
                                      €104.40Price
                                          Do not risk contamination of your sequential gearbox. Without this new SADEV clutch guide tube seal (Ref. F0073031 , sealing part), you lose the vital isolation against impurities and moisture, threatening the longevity of your Clio 2 X65 Cup's ST75-14 gearbox . This small...
                                          €104.40Price
                                          Entraineur gauche Ragnotti Clio Gr N
                                              The SADEV Left Drive Flange (7711129607 / F1903157) is the original SADEV part that ensures the final transmission of engine torque from your SADEV ST66 gearbox to the driveshaft. A crucial link in the kinematic chain of your Renault Clio 2 Group N . A...
                                              €806.15Price
                                              Entraineur gauche Ragnotti Clio Gr N
                                                  The SADEV Left Drive Flange (7711129607 / F1903157) is the original SADEV part that ensures the final transmission of engine torque from your SADEV ST66 gearbox to the driveshaft. A crucial link in the kinematic chain of your Renault Clio 2 Group N . A...
                                                  €806.15Price
                                                  En Stock
                                                  €450.43 Price
                                                  En Stock
                                                  €450.43 Price
                                                  SADEV Left Driveshaft F1908352 - ST75 Clio 3 CupSADEV Left Driveshaft F1908352 - ST75 Clio 3 Cup
                                                      The SADEV Left Driveshaft (references F1908352 / 7711160447 ) is the main element of the left driveshaft, ensuring the link between the Lobro joint (gearbox side) and the wheel hub carrier . Designed to withstand intense torque efforts in motorsport , it is homologated for the Renault...
                                                      €450.43Price
                                                      SADEV Left Driveshaft F1908352 - ST75 Clio 3 CupSADEV Left Driveshaft F1908352 - ST75 Clio 3 Cup
                                                          The SADEV Left Driveshaft (references F1908352 / 7711160447 ) is the main element of the left driveshaft, ensuring the link between the Lobro joint (gearbox side) and the wheel hub carrier . Designed to withstand intense torque efforts in motorsport , it is homologated for the Renault...
                                                          €450.43Price
                                                          SADEV Left Half-Ball Joint Quickshift Linkage – Clio 2 Gr N (F0073023)SADEV Left Half-Ball Joint Quickshift Linkage – Clio 2 Gr N (F0073023)
                                                              A vital part for the precision of your Quickshift ! This SADEV left half-ball joint (P/N: F0073023 ), or half-shell , is essential for maintaining zero-play on the shift linkage rod in the casing of your Renault Clio 2 Gr N's ST66 dog-ring gearbox . If this wear part shows any play, you will...
                                                              €32.75Price
                                                              SADEV Left Half-Ball Joint Quickshift Linkage – Clio 2 Gr N (F0073023)SADEV Left Half-Ball Joint Quickshift Linkage – Clio 2 Gr N (F0073023)
                                                                  A vital part for the precision of your Quickshift ! This SADEV left half-ball joint (P/N: F0073023 ), or half-shell , is essential for maintaining zero-play on the shift linkage rod in the casing of your Renault Clio 2 Gr N's ST66 dog-ring gearbox . If this wear part shows any play, you will...
                                                                  €32.75Price
                                                                  Tulipe gauche Clio 3 Cup
                                                                      The SADEV Left Side Output Flange (references F1908350 / 7711160348 ) is the gearbox output element that ensures the essential connection between the differential and the driveshaft (Lobro type) of your left-hand transmission. A vital part of the SADEV ST75 sequential gearbox , it is homologated for the...
                                                                      €328.32Price
                                                                      Tulipe gauche Clio 3 Cup
                                                                          The SADEV Left Side Output Flange (references F1908350 / 7711160348 ) is the gearbox output element that ensures the essential connection between the differential and the driveshaft (Lobro type) of your left-hand transmission. A vital part of the SADEV ST75 sequential gearbox , it is homologated for the...
                                                                          €328.32Price
                                                                          Sur commande ou en cours de réappro
                                                                          €536.88 Price
                                                                          Sur commande ou en cours de réappro
                                                                          €536.88 Price
                                                                          SADEV LSD Plate Set for Renault Clio 2 Gr.N ST66SADEV LSD Plate Set for Renault Clio 2 Gr.N ST66
                                                                              Optimize the traction of your Renault Clio 2 Gr.N with the official SADEV limited-slip differential (LSD) plate set . Designed for the ST66 gearbox , this kit (reference F19030701 ) is essential to maintain your differential's preload and torque bias. Don't let worn plates cost you precious seconds...
                                                                              €536.88Price
                                                                              SADEV LSD Plate Set for Renault Clio 2 Gr.N ST66SADEV LSD Plate Set for Renault Clio 2 Gr.N ST66
                                                                                  Optimize the traction of your Renault Clio 2 Gr.N with the official SADEV limited-slip differential (LSD) plate set . Designed for the ST66 gearbox , this kit (reference F19030701 ) is essential to maintain your differential's preload and torque bias. Don't let worn plates cost you precious seconds...
                                                                                  €536.88Price
                                                                                  Vis M7x45SADEV M7x45 Screw ST66 Gearbox – 5th Insert Fastener Clio 2 Gr N (0301331)
                                                                                      Do not neglect any component of your transmission! This M7x45 SADEV screw (P/N: 0301331 ) is the essential genuine part for securing the 5th gear threaded insert of your ST66 dog-ring gearbox . Intended for the Renault Clio 2 Gr N , this screw ensures the crucial retention of the 5th gear components. A faulty...
                                                                                      €34.37Price
                                                                                      Vis M7x45SADEV M7x45 Screw ST66 Gearbox – 5th Insert Fastener Clio 2 Gr N (0301331)
                                                                                          Do not neglect any component of your transmission! This M7x45 SADEV screw (P/N: 0301331 ) is the essential genuine part for securing the 5th gear threaded insert of your ST66 dog-ring gearbox . Intended for the Renault Clio 2 Gr N , this screw ensures the crucial retention of the 5th gear components. A faulty...
                                                                                          €34.37Price
                                                                                          Vis CHC M8x20 CL 10.9 Brut Clio Gr NSADEV M8x20 CHC Bolt - Renault Clio 2 Gr.N ST66 Gearbox
                                                                                              Do not risk an oil leak or a complete transmission failure due to neglected hardware. This M8x20 CHC bolt (Grade 10.9, raw finish) is an official Renault Sport component, manufactured by SADEV . Specifically designed for securing the differential cover on the ST66 gearbox of the Renault Clio 2...
                                                                                              €0.79Price
                                                                                              Vis CHC M8x20 CL 10.9 Brut Clio Gr NSADEV M8x20 CHC Bolt - Renault Clio 2 Gr.N ST66 Gearbox
                                                                                                  Do not risk an oil leak or a complete transmission failure due to neglected hardware. This M8x20 CHC bolt (Grade 10.9, raw finish) is an official Renault Sport component, manufactured by SADEV . Specifically designed for securing the differential cover on the ST66 gearbox of the Renault Clio 2...
                                                                                                  €0.79Price
                                                                                                  Fourchette 3-4 usinée) pour boite à crabot Clio Gr N
                                                                                                      3rd and 4th gears are the most critical ratios in racing. This machined 3rd-4th gear shift fork SADEV (P/N: F0027026 ) is essential for guaranteeing precise and rapid shifts on your ST66 dog-ring gearbox in the Renault Clio 2 Gr N . A fatigued or deformed fork causes a major risk of unintentional disengagement ...
                                                                                                      €244.60Price
                                                                                                      Fourchette 3-4 usinée) pour boite à crabot Clio Gr N
                                                                                                          3rd and 4th gears are the most critical ratios in racing. This machined 3rd-4th gear shift fork SADEV (P/N: F0027026 ) is essential for guaranteeing precise and rapid shifts on your ST66 dog-ring gearbox in the Renault Clio 2 Gr N . A fatigued or deformed fork causes a major risk of unintentional disengagement ...
                                                                                                          €244.60Price
                                                                                                          Fourchette de 5ème usinée Clio Gr N
                                                                                                              Ensure precise and fast 5th gear changes on your Renault Clio 2 Gr N ! This machined 5th gear shift fork SADEV (P/N: F0022025 ) is an essential component to guarantee perfect engagement of 5th gear in your ST66 dog-ring gearbox . A worn fork causes dangerous play in the selection and compromises...
                                                                                                              €467.78Price
                                                                                                              Fourchette de 5ème usinée Clio Gr N
                                                                                                                  Ensure precise and fast 5th gear changes on your Renault Clio 2 Gr N ! This machined 5th gear shift fork SADEV (P/N: F0022025 ) is an essential component to guarantee perfect engagement of 5th gear in your ST66 dog-ring gearbox . A worn fork causes dangerous play in the selection and compromises...
                                                                                                                  €467.78Price
                                                                                                                  Goupille Mécaninbus Diam 2 pour demi rotule
                                                                                                                      The precision of your SADEV Quickshift gear control depends on every detail! This Mechaninbus pin diameter 2 (P/N: 0701037 ) is an essential part to ensure the reliable retention of the reinforced rod half-shells on your Renault Clio 2 Gr N ( ST66 SADEV Gearbox). A faulty pin results in...
                                                                                                                      €0.24Price
                                                                                                                      Goupille Mécaninbus Diam 2 pour demi rotule
                                                                                                                          The precision of your SADEV Quickshift gear control depends on every detail! This Mechaninbus pin diameter 2 (P/N: 0701037 ) is an essential part to ensure the reliable retention of the reinforced rod half-shells on your Renault Clio 2 Gr N ( ST66 SADEV Gearbox). A faulty pin results in...
                                                                                                                          €0.24Price
                                                                                                                          En Stock
                                                                                                                          €25.99 Price
                                                                                                                          En Stock
                                                                                                                          €25.99 Price
                                                                                                                          Cage à aiguille Clio Gr N
                                                                                                                              Do not let a component worth a few euros destroy your entire transmission. This SADEV needle bearing (reference 0105018) is an official Renault Sport part, essential for the 3rd and 4th gear sliding sleeve support . Specifically designed for the SADEV ST66 gearbox in the Renault Clio 2 Group N , it ensures...
                                                                                                                              €25.99Price
                                                                                                                              Cage à aiguille Clio Gr N
                                                                                                                                  Do not let a component worth a few euros destroy your entire transmission. This SADEV needle bearing (reference 0105018) is an official Renault Sport part, essential for the 3rd and 4th gear sliding sleeve support . Specifically designed for the SADEV ST66 gearbox in the Renault Clio 2 Group N , it ensures...
                                                                                                                                  €25.99Price
                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                  €1.26 Price
                                                                                                                                  Sur commande ou en cours de réappro
                                                                                                                                  €1.26 Price
                                                                                                                                      Do not take any risk of a critical leak on your ST75-14 sequential gearbox . Without this new SADEV flange O-ring (Ref. 0201051 ), you compromise the vital seal on the cardan shaft output, threatening the lubrication and reliability of your Clio 2 X65 Cup ...
                                                                                                                                      €1.26Price
                                                                                                                                          Do not take any risk of a critical leak on your ST75-14 sequential gearbox . Without this new SADEV flange O-ring (Ref. 0201051 ), you compromise the vital seal on the cardan shaft output, threatening the lubrication and reliability of your Clio 2 X65 Cup ...
                                                                                                                                          €1.26Price
                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                          €5.96 Price
                                                                                                                                          Sur commande ou en cours de réappro
                                                                                                                                          €5.96 Price
                                                                                                                                              Secure your gear selection precision with the SADEV potentiometer bracket (references F9001031 and 0109001031 ). An essential original part for holding the gear position sensor on your ST75-14 sequential gearbox , it ensures the exact transmission of gear data to the ECU. Specifically designed for the Renault Clio 2...
                                                                                                                                              €5.96Price
                                                                                                                                                  Secure your gear selection precision with the SADEV potentiometer bracket (references F9001031 and 0109001031 ). An essential original part for holding the gear position sensor on your ST75-14 sequential gearbox , it ensures the exact transmission of gear data to the ECU. Specifically designed for the Renault Clio 2...
                                                                                                                                                  €5.96Price
                                                                                                                                                  SADEV Primary Shaft ST66 Dog-ring Gearbox – Clio 2 Gr N (F1903001)SADEV Primary Shaft ST66 Dog-ring Gearbox – Clio 2 Gr N (F1903001)
                                                                                                                                                      The heart of power transmission ! This SADEV Primary Shaft (P/N: F1903001 ) is the master piece that directly receives torque from the engine via the clutch in your Renault Clio 2 Gr N's ST66 dog-ring gearbox . Cracks, premature spline wear, or deformation of this shaft not only compromise the reliability of the...
                                                                                                                                                      €899.60Price
                                                                                                                                                      SADEV Primary Shaft ST66 Dog-ring Gearbox – Clio 2 Gr N (F1903001)SADEV Primary Shaft ST66 Dog-ring Gearbox – Clio 2 Gr N (F1903001)
                                                                                                                                                          The heart of power transmission ! This SADEV Primary Shaft (P/N: F1903001 ) is the master piece that directly receives torque from the engine via the clutch in your Renault Clio 2 Gr N's ST66 dog-ring gearbox . Cracks, premature spline wear, or deformation of this shaft not only compromise the reliability of the...
                                                                                                                                                          €899.60Price
                                                                                                                                                          Palier de marche arrière Clio Gr N
                                                                                                                                                              Do not let a stubborn reverse gear engagement ruin your maneuvers in the service park or during a recovery. This reverse gear bushing is an official Renault Sport part, engineered by the expert SADEV under reference F0056015 . Exclusively designed for the ST66 gearbox of the Renault Clio 2 Group...
                                                                                                                                                              €16.22Price
                                                                                                                                                              Palier de marche arrière Clio Gr N
                                                                                                                                                                  Do not let a stubborn reverse gear engagement ruin your maneuvers in the service park or during a recovery. This reverse gear bushing is an official Renault Sport part, engineered by the expert SADEV under reference F0056015 . Exclusively designed for the ST66 gearbox of the Renault Clio 2 Group...
                                                                                                                                                                  €16.22Price
                                                                                                                                                                  SADEV Reverse Gear Shaft ST66 Gearbox – Renault Clio 2 Gr N (F0073015)SADEV Reverse Gear Shaft ST66 Gearbox – Renault Clio 2 Gr N (F0073015)
                                                                                                                                                                      A critical piece of the internal kinematics! This SADEV reverse gear shaft (P/N: F0073015 ) is a crucial component that not only supports the reverse gear pinion but also helps maintain the rigid support of the entire gear/bearing assembly in your Renault Clio 2 Gr N's ST66 dog-ring gearbox . A warped or worn shaft threatens gear...
                                                                                                                                                                      €181.49Price
                                                                                                                                                                      SADEV Reverse Gear Shaft ST66 Gearbox – Renault Clio 2 Gr N (F0073015)SADEV Reverse Gear Shaft ST66 Gearbox – Renault Clio 2 Gr N (F0073015)
                                                                                                                                                                          A critical piece of the internal kinematics! This SADEV reverse gear shaft (P/N: F0073015 ) is a crucial component that not only supports the reverse gear pinion but also helps maintain the rigid support of the entire gear/bearing assembly in your Renault Clio 2 Gr N's ST66 dog-ring gearbox . A warped or worn shaft threatens gear...
                                                                                                                                                                          €181.49Price
                                                                                                                                                                          SADEV Reverse Gear Washer F1903035 - Renault Clio 2 Gr N ST66 GearboxSADEV Reverse Gear Washer F1903035 - Renault Clio 2 Gr N ST66 Gearbox
                                                                                                                                                                              Do not underestimate small parts! This SADEV Reverse Gear Washer (F1903035) is an essential original SADEV part for the correct positioning and play of the reverse gear pinion in your SADEV ST66 gearbox. Regular replacement of this washer ensures the maintenance of tolerances ...
                                                                                                                                                                              €48.74Price
                                                                                                                                                                              SADEV Reverse Gear Washer F1903035 - Renault Clio 2 Gr N ST66 GearboxSADEV Reverse Gear Washer F1903035 - Renault Clio 2 Gr N ST66 Gearbox
                                                                                                                                                                                  Do not underestimate small parts! This SADEV Reverse Gear Washer (F1903035) is an essential original SADEV part for the correct positioning and play of the reverse gear pinion in your SADEV ST66 gearbox. Regular replacement of this washer ensures the maintenance of tolerances ...
                                                                                                                                                                                  €48.74Price
                                                                                                                                                                                  Renvoi de marche arrière 25 dents ( 11 / 25 / 36 ) Clio Gr N
                                                                                                                                                                                      An essential part for movement inversion! This SADEV Reverse Gear Idler Pinion, 25 teeth (P/N: F1903005 ) is a crucial intermediate gear for engaging reverse gear in your Renault Clio 2 Gr N's ST66 dog-ring gearbox . Damaged teeth on this idler (characterized by 11 / 25 / 36 teeth) result in noisy , or even impossible,...
                                                                                                                                                                                      €144.71Price
                                                                                                                                                                                      Renvoi de marche arrière 25 dents ( 11 / 25 / 36 ) Clio Gr N
                                                                                                                                                                                          An essential part for movement inversion! This SADEV Reverse Gear Idler Pinion, 25 teeth (P/N: F1903005 ) is a crucial intermediate gear for engaging reverse gear in your Renault Clio 2 Gr N's ST66 dog-ring gearbox . Damaged teeth on this idler (characterized by 11 / 25 / 36 teeth) result in noisy , or even impossible,...
                                                                                                                                                                                          €144.71Price
                                                                                                                                                                                          Circlips de fourchette de marche arrière Clio Gr N
                                                                                                                                                                                              Never underestimate the importance of small parts! This SADEV reverse gear shift fork circlip (P/N: 0601002 ) is an essential safety component for your ST66 dog-ring gearbox in the Renault Clio 2 Gr N . It ensures the precise retention of the reverse gear shift fork , preventing any misalignment or jamming....
                                                                                                                                                                                              €1.44Price
                                                                                                                                                                                              Circlips de fourchette de marche arrière Clio Gr N
                                                                                                                                                                                                  Never underestimate the importance of small parts! This SADEV reverse gear shift fork circlip (P/N: 0601002 ) is an essential safety component for your ST66 dog-ring gearbox in the Renault Clio 2 Gr N . It ensures the precise retention of the reverse gear shift fork , preventing any misalignment or jamming....
                                                                                                                                                                                                  €1.44Price