SADEV 58-Tooth Crownwheel (12-Shaft) F1908059 - ST75 Sequential Gearbox

The SADEV 58-Tooth Crownwheel: The Central Link of Your 12/58 ST75 Final Drive

The crownwheel is one of the largest and most critical parts of your SADEV ST75 sequential gearbox. It is subjected to extreme torque forces. For your Renault Clio 3 Cup, only a genuine product, such as the SADEV 58-Tooth Crownwheel F1908059, helps prevent premature wear and the risk of catastrophic failure. Ignoring the replacement of this part is a significant risk.

The Direct Consequences of a Worn Crownwheel:

Definitive Loss of Torque Transmission Capacity

A 58-tooth crownwheel showing signs of wear or chipping can no longer efficiently transfer power from the 12-tooth secondary shaft. You lose the rigidity of the assembly, which results in excessive play, abnormal noises, and ultimately, tooth rupture. This guarantees a major mechanical breakdown and an unforeseen, costly immobilization of your sports vehicle.

Cross-Wear on the Pinion Shaft (12 Teeth) and Differential

A surface or geometry defect on the crownwheel F1908059 will accelerate the wear of the 12-tooth shaft, even if it is new. Furthermore, it is bolted onto the differential housing. A failing crownwheel causes vibrations that weaken the bearings and the limited-slip differential. You lose the longevity of expensive and sensitive components in your SADEV ST75 gearbox.

OPTIMIZ ACCESS: Genuine SADEV Parts and Competition Servicing

As a specialized SADEV distributor, we supply the reference F1908059 for the 12/58 final drive ratio of ST75 sequential gearboxes. Our expertise covers the entire Renault Sport range, from the Clio 2 Gr N to the Megane N4. Our E.E.A.T. commitment (Expertise, Experience, Authority, Trustworthiness) is your assurance of buying the highest quality.

SEO Optimization and Customer Advice

« Should I replace the 12-tooth secondary shaft with the 58-tooth crownwheel? »

Yes, to maximize the reliability and lifespan of the 12/58 final drive ratio, it is essential to replace both parts (12-tooth shaft and 58-tooth crownwheel) together. The associated product is listed at the bottom of this page.

« What are the appropriate fixing screws for this crownwheel? »

It is mandatory to use new screws to fasten the crownwheel to the differential housing, as these items are non-reusable in competition. The references for the appropriate SADEV screws are available in the complementary products section at the bottom of the page.

« Does OPTIMIZ ACCESS offer installation of this ST75 crownwheel? »

Absolutely. Our workshops are located in Hauts-de-France, near Lille, Douai, Arras, Cambrai, and Valenciennes. Entrust us with the assembly and adjustment of your sequential gearbox to ensure perfect installation.

Immediate Stock and International Fast Shipping

Do not waste valuable time on the track or in rally. This genuine SADEV part is in stock, and we guarantee fast and reliable shipping all over the globe.