Spec 85-93 BMW M5 3.5L/3.6L/3.8L Aluminum Flywheel

In this box, you'll find the SPEC SB36A aluminum flywheel, ready to be installed on your 1978-1984 BMW 733i, 1988 BMW M5, 1987-1988 BMW M6, 1979-1981 BMW 528i, or 1977 BMW 630CSi. This flywheel is a key component in your car's drivetrain, connecting the engine to the clutch and transmission. By replacing a heavier stock flywheel with this aluminum version, you're reducing rotational mass. This change allows your engine to rev up and down more quickly, which can make the car feel more responsive, especially during spirited driving or when you're rebuilding the engine's top end.

SPEC chose aluminum for this flywheel because it's significantly lighter than the cast iron or steel flywheels often found in stock applications. This weight reduction is the primary benefit, leading to that improved engine response. The SB36A is designed as a direct replacement, meaning it should bolt up to your existing crankshaft and work with your clutch assembly without major modifications. This makes the installation process more straightforward compared to custom setups. It's a well-built part intended to handle the demands of daily driving and occasional performance use.

When installing a new flywheel, it's always a good idea to inspect your clutch components, such as the clutch disc and pressure plate, to ensure they are in good condition. Replacing these items at the same time can save you from having to do the job again later. Always refer to the manufacturer's installation instructions for specific details regarding torque specifications and any required break-in procedures for the flywheel and clutch system.