

19-Tooth Speedo Gear - Clio 2 RS & Sadev ST66 Gearbox
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Ensure your instrumentation remains accurate with this genuine Renault 19-tooth speedometer drive gear. Essential for the JC5 gearbox and Sadev ST66 dog-engagement transmissions, this manufacturer-certified part guarantees reliable data feedback for your Renault Clio 2 RS or Group N build.
- Number of teeth: 19 teeth
- Compatibility: JC5 and Sadev ST66 gearboxes
- Quality: Genuine Renault OEM part
Why failing to replace your 19-tooth speedo gear is a mistake
Ignoring wear or the absence of this 19-tooth speedometer gear (reference 7700722303 or 8200674131) exposes your sports vehicle to critical malfunctions. Without a precise speed reading, you lose real control over your performance on track or road, risking gear shift errors or inaccurate telemetry data. On a Clio 2 RS, using a non-compliant part often leads to premature wear of the gearbox drive assembly.
Technical Compatibility: JC5 and Sadev ST66 Gearboxes
This gear is not just a simple spare part; it is a precision component designed for high mechanical stress. It is specifically validated for:
- JC5 gearboxes (Clio 2 RS 172/182hp).
- Sadev ST66 dog-ring competition gearboxes.
- Group N preparations and motorsport vehicles.
Optimiz Access Expertise for your Renault Sport
Specializing in the personalization and maintenance of premium vehicles since 2010, Optimiz Access selects only parts with proven reliability. Based in Hauts-de-France, near Lille and Cambrai, we understand the high standards of Renault Sport enthusiasts. By not choosing this genuine Renault part, you compromise the integrity of your transmission.
Frequently Asked Questions about the 19-tooth gear:
How can I tell if my gear is faulty?
An unstable speedometer needle or a completely non-functional speedometer are the first signs. On a Sadev dog-box, a scarred gear can release debris into the gearbox oil.
Is this gear compatible with other Renault boxes?
It is strictly optimized for 19-tooth configurations linked to the final drive ratios of Clio 2 RS and ST66 units. Always verify your manufacturer reference.
To complete your assembly or transmission maintenance, you can find complementary products (seals, high-performance gear oil, sensors) directly at the bottom of this page.
Note: Optimiz Access ensures fast worldwide shipping so that your vehicle does not stay off the road.
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Data sheet
- Marque du véhicule
- Renault
- Modèle du véhicule
- Renault Clio 2
- Motorisation
- GR N
RS 2.0 16V 172
RS 2.0 16V 182
Specific References












