M10 Flanged Gearbox Engine Bolt | Renault Megane 3 RS N4

The risks of stretched or reused bellhousing bolts: what your Megane 3 RS loses in reliability

During major powertrain service on the 2.0 Turbo TCe (F4R 874) engine, bellhousing bolts undergo significant tensile stress. Reusing oxidized, deformed, or thread-worn M10 bolts exposes the engine-to-transmission joint to gradual loosening caused by intense engine vibration and high torque delivery to the front wheels.

Relying on fatigued hardware or mixing uncertified bolts on the bellhousing can cause micro-movements between the engine block and PK4 gearbox casing. This leads to input shaft misalignment, premature clutch release bearing wear, or even bolt shear under hard acceleration. By replacing your hardware with this genuine OEM M10 flanged hex bolt for Megane RS bellhousing, you secure your assembly: you ensure flush mating faces, maintain factory torque specs, and protect your drivetrain.

Manufactured to original high-tensile Renault Sport strength standards, this flanged hex bolt features a wide contact face that distributes clamping force evenly without damaging aluminum housings.

Precision assembly and competition drivetrain protection

A critical component during powertrain reinstallations, this engine-to-gearbox bolt for Megane 3 RS and Megane N4 guarantees structural rigidity. It is an indispensable technical purchase during heavy mechanical service for preventive maintenance and reliable customization of your sports vehicle.

Compatible vehicles and models list

This M10 flanged hex bolt installs directly into the gearbox bellhousing on the following applications:

• Renault Megane 3 RS 250 hp – 2.0 Turbo TCe (F4R 874) engine / PK4 manual gearbox.
• Renault Megane 3 RS 265 hp (Trophy, RB7, RB8) – 2.0 Turbo TCe / PK4 gearbox.
• Renault Megane 3 RS 275 hp (Trophy, Trophy-R) – 2.0 Turbo TCe / PK4 gearbox.
• Renault Megane N4 (Rally / Customer Racing) – F4R Turbo engine / Dogleg or synchro box.
• Renault Megane 3 GT 220 – 2.0 Turbo TCe (F4R 874) engine.

Trust Optimiz Access mechanical expertise

Since 2010, Optimiz Access has been a trusted specialist supplying OEM spare parts, specific hardware, and high-performance equipment for the customization and maintenance of sports vehicles (Renault Sport, Alpine, Audi, Volkswagen, Porsche, Mercedes, BMW). In our workshops located in Northern France — closely serving Cambrai, Valenciennes, Arras, Seclin, Lille, Douai, and Saint-Quentin —, our expert technicians perform gearbox rebuilds, upgraded clutch installations, and complete engine builds daily. We package every order with care to guarantee fast shipping across Europe and worldwide.

Frequently Asked Questions about Megane 3 RS M10 Gearbox Bolts (FAQ)

Why should bellhousing bolts be replaced during a clutch change?
Bellhousing bolts undergo heavy tension cycles. Preventive replacement ensures accurate torque tightening without risking damage to the aluminum block threads or snapping a fatigued bolt under load.

Should threadlocker be used when installing this bolt?
Applying a drop of medium-strength threadlocker (e.g., Loctite 243) on clean threads is recommended to prevent accidental loosening from engine and drivetrain vibration.

Secure your transmission assembly today

Don't compromise your powertrain rigidity with reused hardware. Rely on genuine OEM quality selected by Optimiz Access and order your M10 flanged hex bolt today.

Note: Upgraded clutch kits, single-mass flywheels, release bearing sleeves, gearbox oils, and alignment dowels can be viewed at the bottom of this product page.