Locks the flywheel on a Porsche 987 Boxster/Cayman or 997 911 so the clutch and flywheel bolts break loose without the crank turning over.
This is a direct OEM replacement for Porsche special tool 9538/1 (also listed as 000.721.953.81), the flywheel holder that keeps the flywheel from spinning while you break the center bolt or the pressure plate bolts loose on a 987 Boxster, 987 Cayman, or 997 911. Without it the flywheel just rotates with the socket and the bolts never break free, especially on an original-torque bolt that has not been off since the factory.
The tool engages the flywheel ring gear and locks against the bellhousing opening so the flywheel cannot turn while you work the breaker bar. It gets used for clutch and flywheel R&R, and for IMS bearing service on the 996/997-based cars, since the clutch and flywheel have to come off first to get at the IMS bearing.
Verified fitment is the 987.1 and 997.1 engines, where it bolts straight in. On 987.2 and 997.2 engines it still works, but has to be wedged into position near the starter opening rather than bolting directly on, since Porsche changed the bellhousing casting for the second-generation 9A1 engines. Steel construction, about 1 lb, cross-references to the factory OEM part numbers above.
| Fits | Porsche Boxster/Cayman 987.1, 987.2, 911 997.1, 997.2 (987.2/997.2 wedge near starter, do not bolt directly in) |
| OEM Replacement For | Porsche special tool 9538/1, part number 000.721.953.81 |
| Material | Steel |
| Weight | 1 lb |
| Package Dimensions | 3 x 3 x 3 in |
| Use | Holds the flywheel stationary during clutch, flywheel, and IMS bearing service |
