SADEV 3-4 Slider Support ST66 - Renault Clio 2 Gr N

Don't Let Play Destroy Your 3-4 Shifts: The Importance of the SADEV ST66 Slider Support

The 3-4 slider support (Ref. F1903016) is essential for maintaining the axial alignment of the gears and the slider on the countershaft of your SADEV sequential gearbox. Wear on this support, often subjected to extreme thermal and mechanical stresses, is a potential source of major failure.

The Consequences of Neglect: Loss of Precision and Breakage

If this support is not replaced during maintenance, you introduce axial and radial play that degrades the interface between the 3-4 dog ring slider and the needle cages. You lose the crispness and speed of the gear shift, which translates into lost time in the race. More seriously, excessive play can cause poor engagement and, ultimately, the destruction of the dog teeth and the 3rd or 4th gear wheel. You risk a costly retirement and the loss of a high-value competition transmission.

“What is the lifespan of the slider support on a Clio 2 Gr N gearbox?”

On SADEV ST66 gearboxes, the lifespan depends on the intensity of use. During the overhaul of your transmission, checking this support is paramount. The F1903016 reference is the Original SADEV part that guarantees the return to the specifications of rigidity and alignment for your Clio 2 Gr N.

Buy Authentic: Optimiz Access, SADEV Competition Partner

By choosing Optimiz Access, you are dealing with an official SADEV distributor. Our expertise is recognized across the Renault Sport Competition ranges, including the Clio 2 Gr N, Clio Cup, Megane N4, and Twingo R2. We ensure the EEAT quality and authenticity of this critical part.

“Which other products should I check along with the F1903016 support?”

For a complete overhaul of the 3-4 cluster, it is highly recommended to check and potentially replace the 3-4 dog ring slider (Ref. F1903205) and the associated needle cage (Ref. 0105018). You will find these essential complementary SADEV parts at the bottom of this product page. Take advantage of our fast delivery service.

Service Competition Transmission Near Lille and Valenciennes

Our premises located in the Hauts-de-France are available for the fitting and overhaul of your SADEV sequential gearbox, thereby ensuring the maximum reliability of your sports vehicle.