Clutch Masters Aluminum Flywheel 850 Series 89-01 RB25DE

If you're rebuilding the drivetrain on your RB25DE-powered vehicle and looking to shave off some rotational mass, this Clutch Masters 850 Series aluminum flywheel is a solid choice. Swapping out the heavy factory steel flywheel for a lighter aluminum one can make a noticeable difference in how quickly your engine revs up, which is especially beneficial for performance applications or track use. This flywheel is specifically designed for the RB25DE engine, ensuring it bolts up correctly to your crankshaft.

Clutch Masters has been in the clutch game for a long time, and they build their parts to last. This particular flywheel is made from a strong aluminum alloy, which is significantly lighter than a stock steel unit. This weight reduction means less inertia for your engine to overcome when accelerating, leading to a snappier throttle response and improved acceleration. It also features a replaceable steel friction surface, which is a smart design choice. When the friction surface eventually wears out, you can simply replace that part instead of the entire flywheel, saving you money and hassle down the road. This design is a practical touch that shows Clutch Masters thinks about the long-term ownership experience.

When installing this flywheel, remember that it's a critical component of your clutch system. Ensure you follow the manufacturer's recommended torque specifications for the flywheel bolts and use a quality clutch alignment tool. This flywheel is designed to work with most standard RB25DE clutch kits, but it's always a good idea to confirm compatibility with your specific clutch disc and pressure plate setup. A proper installation is key to getting the most out of this lightweight flywheel and ensuring smooth operation.