Flywheels
Flywheels: steel or aluminum, the piece that decides how your clutch behaves
The flywheel is the machined disc bolted to the back of your crankshaft. It carries the ring gear the starter spins, gives the clutch a friction face to clamp against, and stores rotating mass that smooths the engine and helps you pull away without stalling. When you fit a new clutch, resurface a worn face, or want a different throttle response, the flywheel is the part you touch. Swap to a lighter one and the engine revs and drops faster; keep a heavier steel unit and low-speed drivability stays easy. That trade-off is the whole reason people shop flywheels instead of just reusing the old one.
What ThreePiece stocks
There are 69 flywheels in this category, priced from $74 to $1,616 at current stock levels - that range moves as inventory changes, so treat it as a snapshot, not a promise. Five brands are represented: Clutch Masters (29 listings), McLeod Racing (15), Competition Clutch (12), SPEC (8) and Exedy (5). Coverage runs across Acura, Honda, Nissan, Toyota, Ford, Chevrolet, Dodge, Subaru, Audi, BMW, Mazda, Lexus and more, with fitment data on 45 of the listings spanning model years 1981 through 2024. Named vehicles include the Acura Integra and RSX, Honda Civic and Accord, Nissan 240SX and Skyline, Toyota Supra and GR Corolla, Ford Mustang, Chevrolet Camaro, Subaru WRX and Audi S4.
How to choose
The first decision is material. Steel flywheels like the SPEC steel unit for the 07-early-09 BMW 335 and the 6-bolt version for the 335is keep more mass for smoother street manners. Lightweight aluminum, like the Clutch Masters aluminum flywheel for the 14-16 BMW M3 or the Exedy lightweight for the 1996-2016 Mustang V8, frees up rotating mass for quicker response. The second decision is bolt pattern and transmission type - the Clutch Masters steel flywheel for the DSG-equipped Audi S4 is a reminder that gearbox matters, and the McLeod 130-tooth aluminum flywheel for the 5.7L/6.4L Challenger shows tooth count has to match your starter. Check bolt count, tooth count and your specific engine before you buy.
What else you need
A flywheel job is the right time to refresh what sits around it. Look at bearings for the pilot and release, head gaskets and gasket kits if you are opening things up, and pistons for a fuller build. Browse the whole Engine Components section for related hardware like adapters.
Fitment and ordering
Not sure which flywheel matches your car and gearbox? Call fitment help at 813-535-5801 or reach us through contact us before you order. Every order ships free, and Affirm and Katapult financing is available at checkout through financing.