Spec 76-85 Porsche 924 2.0L Stage 2+ Clutch Kit
SPEC SP153H is a Stage 2+ clutch for the 1976-1985 Porsche 924 with the 2.0L four-cylinder. It is aimed at the owner whose 924 slips in the upper gears, has had engine work, or simply needs a clutch that will outlast a factory replacement while still driving well on the street. SPEC rates it at 226 ft-lb of torque capacity, which leaves a wide margin over what a 2.0L 924 makes in stock or mildly built form.
The 924 uses a front engine and a rear transaxle. The clutch sits at the back of the engine, and a long shaft inside the torque tube carries power from the clutch disc back to the gearbox at the rear axle. That layout gives the car its balanced weight distribution, but it also means a clutch job is a bigger undertaking than on a front-drive car, so most owners want the replacement to last.
SPEC describes its Stage 2+ disc as a multi-friction disc that keeps the drivability of its Stage 2 kevlar disc while adding 15-20% more torque capacity. On SPEC's 924 2.0L chart the numbers line up that way: Stage 1 SP151 is rated 177 ft-lb, Stage 2 SP152 205 ft-lb, and this Stage 2+ SP153H 226 ft-lb. SPEC lists the kit at 14 lb. If the car is a dedicated track build and you can live with a sharper engagement, SPEC's Stage 3 and Stage 3+ discs sit above it, but for a street 924 the Stage 2+ is the sensible middle ground.
Road test in a high gear at low rpm and apply full throttle; if the tach climbs faster than road speed, the disc is slipping. Before you commit to dropping the transaxle and torque tube, rule out the release side: a misadjusted or binding release mechanism can cause both slip and drag. Our slipping diagnosis guide covers how slip feels compared with other faults, and the commonly misdiagnosed symptoms article explains why noises are easy to blame on the wrong part.
Our listing covers the Porsche 924 2.0L, 1976-1985. SPEC's application data also lists SP153H for the 1970-1977 Audi 100 1.8L and 1.9L and the 1982-1984 Volkswagen Quantum 2.2L, because the 924 shared its engine family with Audi and VW. It is not the kit for the 924S: SPEC groups the 2.5L 924S with the 944, which uses the SP313F Stage 3+ kit and the 944 Turbo SP291 kit line. These cars are now decades old and many have had engine or gearbox swaps, so compare the old pressure plate and disc spline with the new parts, or send us your year and VIN before you order. Browse more clutch parts in our rebuild kits collection.
| Brand | SPEC |
| Part number | SP153H |
| Fits | Spec 76-85 Porsche 924 2.0L Stage 2+ Clutch Kit |
| Vehicle fitment | Porsche 924 (1976-1985) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
SPEC lists SP153H for the 924 2.0L from 1976 to 1985. The 2.5L 924S is grouped with the 944 kits in SPEC's catalog, so it needs a 944-type clutch instead. If you are not sure which engine your car has, send us the year and VIN.
SPEC rates SP153H at 226 ft-lb of torque capacity, compared with 177 ft-lb for its Stage 1 and 205 ft-lb for its Stage 2 kits for the same car.
SPEC describes the Stage 2+ disc as keeping the drivability of its Stage 2 street disc while adding torque capacity. It is designed for street driving, autocross and occasional drag use, not as a race-only clutch.
Surface or replace the flywheel, and inspect the release bearing, pilot bearing and release mechanism. Because the transaxle and torque tube have to come apart, it is also a good time to look at mounts and seals.
Yes. Drive gently with smooth engagements for the first few hundred miles and avoid hard launches until the disc and flywheel have bedded together.
