SADEV 5th Gear Threaded Insert Nut F1903033 - Renault Clio 2 Gr N ST66 Gearbox

Prevent Failure: The SADEV 5th Gear Threaded Insert Nut F1903033 is Essential for your Clio 2 Gr N

As the owner of a Renault Clio 2 Gr N equipped with a SADEV ST66 gearbox, precision and solidity are non-negotiable. A simple worn or non-compliant fixing nut can become the starting point for a major failure in your transmission.

What You Risk Without a New, Reliable SADEV Nut:

• ❌ Loosening in Competition: The primary function of the nut F1903033 is to hold the 5th gear pinion under high stress. A fatigued nut can loosen under vibrations and shocks, causing the immediate loss of 5th gear.
• ❌ Collateral Damage: Excessive play due to improper tightening can damage the threaded insert F1903031 and adjacent pinions, turning a simple part replacement into an expensive repair for the SADEV gearbox.
• ❌ Time Loss: A breakdown due to this nut will cost you not only the part but also the cancellation of your participation and the subsequent breakdown costs.

Original SADEV Part: Motorsport Fastening Quality

The Insert Nut F1903033 is manufactured according to strict SADEV Motorsport standards. Its design guarantees optimal tightening torque and anti-vibration retention essential for sequential gearboxes like the ST66. It must be imperatively replaced at the same time as the threaded insert F1903031 or the anti-rotation adjustment shim during any intervention on the 5th gear.

Compatibility and Search Keywords: Nut F1903033 Clio 2 Gr N

We supply the original nut, compatible with all SADEV ST66 gearboxes used on the iconic models distributed by Optimiz Access:

• Renault Clio 2 Group N (Gr N)
• Renault Clio 2 X65 Cup
• Renault Clio 3 X85 Cup
• Renault Megane N4
• Twingo R2

By choosing Optimiz Access, you benefit from our expertise and fast shipping for an essential SADEV part for competition transmission.

Expert Advice: Should I reuse my old nut?

No. Critical fastening nuts undergo plastic deformation during the first tightening at high torque to ensure locking. Reusing an F1903033 nut presents a high risk of failing to achieve the necessary holding torque, compromising the reliability of the pinion/shaft assembly. For sports mechanics, only a new part guarantees integrity.

Optimiz Access: Sales, Fitting, and Maintenance in Hauts-de-France

Optimize your local SEO and customer experience: we specialize in Renault Sport, Audi, Porsche, etc., parts since 2010. Our workshops near Lille, Cambrai, Valenciennes, and Arras are available for the expert fitting of this nut and the maintenance of your ST66 sequential gearbox.

Don't forget the complementary products necessary for the overhaul, such as the threaded insert F1903031 and the anti-rotation adjustment shim, available at the bottom of the page.