Spec 12-13 Ford Focus 2.0T ST EcoBoost Stage 2+ Clutch Kit (Must use FW SF33A-4)
SPEC SF333H-4 is a Stage 2+ clutch kit for the Ford Focus ST with the 2.0L EcoBoost and six-speed manual, listed here for the 2012-2013 build years. It is the kit most tuned street STs end up needing: the factory clutch starts to slip in third and fourth once a tune, intake or intercooler raises boost, and owners want more holding power without the grabby take-up of a puck-style race disc. The catch is in the name. This is a non-ratcheting kit built to run on SPEC's own billet flywheel, so the factory dual-mass flywheel comes out with it.
SPEC rates SF333H-4 at 545 ft-lb of torque capacity and lists the kit at 14 lb. Its Stage 2+ disc uses a multi-friction design that SPEC describes as keeping the drivability of its Stage 2 Kevlar disc while adding roughly 15 to 20 percent more torque capacity. In the SPEC dash 4 Focus ST range that puts it in the middle: the SF331-4 Stage 1 is rated at 430 ft-lb and the SF332-4 Stage 2 at 485, while the SF333-4 Stage 3 and SF333F-4 Stage 3+ step up to 580 and 671 with more aggressive friction.
The factory ST clutch uses a self-adjusting pressure plate on a dual-mass flywheel. The dash 4 kits do not. They use a conventional, non-ratcheting cover matched to the face height and bolt pattern of SPEC's single-mass flywheel, which is why the SF33A-4 is called out in the part name.
Clutch slip does not set a trouble code of its own. If the car also feels flat, scan for boost and fuel codes first.
Log a full-throttle pull in fourth from about 2,500 rpm. If boost reaches its target and the tach rises faster than the speedometer, the clutch is slipping. If boost falls short, find the leak or wastegate fault before spending money on a clutch. Look for oil at the bottom of the bellhousing too, since a leaking seal will glaze a new disc. Our slipping diagnosis guide lays out the test order, and the flare vs. slip guide explains what the tach is telling you.
Our listing covers the 2012-2013 Ford Focus ST 2.0L EcoBoost six-speed. SPEC catalogs the dash 4 kits for the Focus ST across 2012-2018 production with the SF33A-4 flywheel; its application chart also lists an SF33S-4 steel flywheel for the same kits. SF333H-4 does not fit the Focus RS, the non-turbo 2.0L Focus, the Fiesta ST or any PowerShift automatic. Because the flywheel requirement is the real fitment rule here, check what flywheel your car has now before ordering, or send us your year and VIN and we will confirm it. More clutch kits are in our rebuild kits category.
If the car is headed for a bigger turbo or drag launches, the SF333F-4 Stage 3+ kit uses the same flywheel with a 671 ft-lb rating. If you would rather keep the factory flywheel, look at the ratcheting SF333F-3 kit instead.
| Brand | SPEC |
| Part number | SF333H-4 |
| Fits | Spec 12-13 Ford Focus 2.0T ST EcoBoost Stage 2+ Clutch Kit (Must use FW SF33A-4) |
| Vehicle fitment | Ford Focus 2.0T St Ecoboost (2012-2013) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. SF333H-4 is a non-ratcheting kit made for SPEC's billet single-mass flywheel. SPEC requires the SF33A-4 aluminum flywheel, and its chart also lists an SF33S-4 steel version. The factory dual-mass flywheel will not work with it.
SPEC rates it at 545 ft-lb of torque capacity. That sits between the SF332-4 Stage 2 at 485 and the SF333-4 Stage 3 at 580.
Yes. SPEC describes Stage 2+ as keeping the drivability of its Stage 2 disc with 15 to 20 percent more capacity. The pedal will be firmer than stock and the lighter flywheel adds some gear rattle at idle.
SPEC catalogs the dash 4 kits for 2012-2018 Focus ST production with the SF33A-4 flywheel. Our listing is written for 2012-2013, so send us your VIN and we will confirm a later car before you order.
Plan on the SF33A-4 flywheel, new flywheel bolts and a hydraulic bleed with fresh fluid. Check the rear main seal and transaxle input seal for leaks while everything is apart.
