Spec 15-20 BMW 440i B58 Steel Flywheel

This SPEC steel flywheel is built for the 2015-2020 BMW 440i with the B58 engine. It's a solid steel construction, weighing in at 26 pounds, which is a bit heavier than some performance options but offers a good balance for street driving and occasional track use. The extra mass helps smooth out engagement, making it more comfortable for daily driving compared to lighter racing flywheels that can make the clutch grabby in traffic. This flywheel is designed to handle the torque of the B58 engine, providing a reliable foundation for your clutch system.

When you're looking to replace your clutch or just upgrade the flywheel on your 440i, this SPEC unit is a well-built option. It's made from a single piece of steel, which is a strong and durable material for this application. This design helps dissipate heat effectively, reducing the risk of warping over time, especially during spirited driving. It's designed to be a direct replacement for your factory flywheel, meaning it should fit right into place without needing any modifications, simplifying the installation process for your mechanic.

This flywheel is intended to be used with a compatible clutch kit. Ensure you have the correct clutch disc and pressure plate designed for this specific flywheel and your BMW's transmission. Because it's a steel flywheel, it's compatible with a wide range of clutch disc materials, including organic, ceramic, and even some sintered iron options, giving you flexibility when choosing your clutch kit. It's a robust choice for anyone looking to maintain or improve the drivetrain performance of their B58-powered BMW.