Clutch Masters 98-04 Porsche 996 3.6L T (3600 lbs) / 997 3.6L T (3600 lbs) Aluminum Flywheel
Clutch Masters FW-934-AL is a billet aluminum single-mass flywheel for the water-cooled 911s built around the 3.6L Turbo and GT engine family: the 996 Turbo, GT2 and GT3 and the 997 Turbo, GT2 and GT3. Owners usually shop for it when the factory dual-mass flywheel starts to rattle or clunk, when a clutch job is already planned, or when a track car needs the engine to rev and drop faster between shifts.
The factory part on these cars is a dual-mass flywheel: two masses joined by springs that filter vibration before it reaches the gearbox. That design is quiet, but it is heavy and the internal springs and bearings wear. FW-934-AL swaps it for one solid piece CNC machined from 6061 billet aluminum, Type 3 hard anodized and zero balanced. Clutch Masters builds it in the USA and states it is SFI 1.2 certified for motorsport use. Shipping weight is about 14 lb, so the boxed part itself is lighter than that.
Less rotating mass lets the flat six gain and lose rpm faster, which makes rev-matched downshifts quicker and helps on a road course. The trade-off is that a single-mass setup passes more gear rattle and idle vibration into the cabin than the dual-mass part did. Clutch Masters says the flywheel pairs with an OEM clutch kit or its own single and twin disc kits.
Dual-mass noise and a worn release bearing can sound alike, so listen with the pedal both up and down. A bearing usually gets louder with the pedal pressed; flywheel rattle usually gets quieter. Slip under load is a disc and clamp problem as much as a flywheel one. Our slipping diagnosis guide covers the road test, and manual transmission repair cost helps you budget the job. Once the transaxle is out, the dual-mass part can be checked for free play directly.
The listing title says 1998-2004 996 3.6 Turbo. Clutch Masters' own application list is more specific: 996 Turbo 2001-2005, 996 GT2 2002-2005, 996 GT3 2004-2005, 996 Turbo S 2005, 997 GT3 and GT3 RS 2007-2008, 997 Turbo 2007-2009, 997 GT2 2008-2009 and several 2010-2011 997.2 GT3, GT3 RS and GT2 RS models. A 1998-2004 996 Carrera or Carrera 4 uses a different engine and is not on that list; those cars need a part such as the SPEC 996 3.6L stage 1 kit. Match the part number FW-934-AL to your car, or send us your year and VIN and we will check it before it ships. More clutch parts are in our rebuild kits section.
| Brand | Clutch Masters |
| Part number | FW-934-AL |
| Fits | Clutch Masters 98-04 Porsche 996 3.6L T (3600 lbs) / 997 3.6L T (3600 lbs) Aluminum Flywheel |
| Vehicle fitment | Porsche 996 (1998-2004) |
| Type | Flywheels |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. Clutch Masters lists it for the 996 Turbo, GT2, GT3 and Turbo S and for 997 Turbo, GT2 and GT3 variants. The Carrera and Carrera 4 are not on the application list.
Clutch Masters says its flywheels are made to pair with an OEM clutch kit or its own single and twin disc kits. Replace the disc, pressure plate and release bearing at the same time.
Usually a little. A single-mass aluminum flywheel does not filter vibration the way the factory dual-mass part does, so some gear rattle at idle is normal.
Billet 6061 aluminum, CNC machined, Type 3 hard anodized and zero balanced. Clutch Masters states it is SFI 1.2 certified.
Only the GT models Clutch Masters lists: 2010-2011 3.8L GT3, 2011 3.8L GT3 RS, 2011 4.0L GT3 RS and 2011 GT2 RS. Send us your VIN if you are unsure.
