Genuine Renault Main Shaft Gearbox Oil Seal – Clio 3 RS / Megane 3 RS

Why Forgetting This Oil Seal is Expensive on Clio 3 RS and Megane 3 RS?

Your Renault Sport vehicle (whether it's a Clio 3 RS or a Megane 3 RS) is demanding. When servicing the clutch, failing to replace the main shaft oil seal is an error that can negate the benefit of all your work. At Optimiz Access, experts in sports vehicle maintenance, we insist on **reliability** parts like this genuine Renault seal.

What You Lose by Neglecting This Sealing Gasket

A faulty seal or a reinstalled old seal is a major source of failure for your PK4 gearbox or PK4018: You lose the performance of your new clutch: The main risk is the **gear oil leak** directly onto the **clutch disc**. Even a small amount of lubricant contaminates the friction linings, causing clutch slip (judder) and rendering your recent intervention completely useless. You risk gearbox failure or overheating: If the oil seal is out of service, gear oil chronically escapes. A low or insufficient lubricant level leads to poor lubrication of the **gearbox cogs**, increasing friction, heat, and the risk of premature wear, or even complete failure of the gearbox. You lose time and money: Clutch replacement is a major operation. Forgetting this seal worth a few euros forces you to completely remove the gearbox again shortly after, doubling the labor cost and the immobilization time of your sports vehicle. You compromise original reliability: This **OEM** (Original Equipment Manufacturer) part is the only one to guarantee the tolerance and rubber quality necessary to withstand the heat and stress of the Renault Sport transmission.

The Assurance of a Long-Lasting Repair for PK4 and PK4018 Gearboxes

This genuine Renault main shaft oil seal is the exact part that mounts behind the clutch release bearing on all Clio 3 RS models and all Megane 3 RS models. Its replacement is an indispensable step when changing the clutch or servicing the slave cylinder. Be sure to use only a genuine part to guarantee the sealing of your Clio RS or Megane RS **transmission**.

Frequently Asked Questions About Transmission Maintenance

When is it mandatory to replace this oil seal?

It is highly recommended to change this main shaft oil seal every time you remove the **gearbox** or replace the complete **clutch/release bearing** assembly. It is a wear part subjected to heat that loses its sealing properties over time. The cost of the part is negligible compared to the labor cost to access it. This is essential preventive maintenance.

How do I know if my oil seal is leaking?

A leak is generally detected by traces of gear oil at the back of the engine, on the clutch housing, or by premature and unexplained clutch slippage that might smell hot. If you have a leak, order this seal quickly.

Can Optimiz Access replace my seal and clutch?

Yes. Our workshop specializes in complex interventions on Renault Sport transmissions. We ensure the installation of this oil seal, the release bearing, the mechanism, and the disc, as well as checking the gear oil levels. Book an appointment at our premises near Lille, Douai, and Valenciennes.

Fast Order for Restored Reliability

Don't wait for the oil leak to damage your transmission. Order this genuine Renault main shaft oil seal from Optimiz Access for **fast shipping**. Your Clio RS or Megane RS deserves OEM quality parts. Consult the complementary products (hydraulic release bearings, clutch kits) just at the bottom of this page for a complete overhaul of your transmission.