SADEV Secondary Shaft Nut - Renault Clio 3 X85 Cup

Why is the SADEV secondary shaft nut essential for your Clio 3 Cup?

In professional racing or intensive track days, the SADEV sequential gearbox of your Renault Clio 3 X85 Cup is subjected to phenomenal vibration and torsional loads. Neglecting the quality or condition of the secondary shaft nut means risking internal loosening with catastrophic consequences: gearset destruction, gearbox seizure, and immediate vehicle immobilization.

SADEV Reliability: Exclusive Performance Engineering

Unlike inferior aftermarket parts, this gearbox nut is a precision instrument. Its specific alloy and heat treatment are designed to maintain optimal tightening torque despite the high temperatures encountered in motorsport. By failing to replace this part during routine maintenance, you expose your transmission to premature secondary shaft wear, leading to repair costs far exceeding the price of this essential hardware.

Technical Specifications & Compatibility

• Brand: SADEV (Original Manufacturer)
• Application: Renault Clio 3 X85 Cup (Circuit / Rally)
• Quality: High-tensile steel compliant with FIA standards
• Usage: Mandatory replacement whenever the gearbox is opened

Your SADEV Expert in France & Worldwide

Since 2010, Optimiz Access has supported drivers and enthusiasts in the personalization and maintenance of premium sports vehicles. Based in Northern France (near Lille, Cambrai, and Valenciennes), we are proud to be the exclusive distributors of SADEV parts for the major Renault Sport ranges:

• Renault Clio 2 Gr N / Clio 2 Cup
• Renault Clio 3 Cup (X85)
• Renault Megane N4
• Renault Twingo R2

Frequently Asked Questions (FAQ)

When should the secondary shaft nut be replaced?

It is highly recommended to replace the secondary shaft nut every time the gearbox is opened for inspection. A nut that has already been torqued loses its elastic properties and can no longer guarantee the same level of safety.

Do you offer international shipping and installation?

Absolutely. Our expert technicians provide sports vehicle maintenance at our workshop in France. We also offer fast worldwide shipping to ensure your car is back on track as quickly as possible.

Note: You can find complementary products (gaskets, gearbox oils, gears) at the bottom of this product page.