Spec 12-13 Ford Focus 2.0T ST EcoBoost Stage 3+ Clutch Kit (Must use FW SF33A-4)
SPEC SF333F-4 is the high-capacity Stage 3+ clutch for the Ford Focus ST with the 2.0L EcoBoost and six-speed manual, cataloged on our listing for the 2012-2013 build years. It is meant for the ST that has gone past a simple tune: bigger turbo, upgraded intercooler and fueling, or regular launches, where even an upgraded clutch on the factory dual-mass flywheel starts to slip in fourth and fifth or burns up at the drag strip. One condition comes with it, and it is in the part name: this kit must be installed with SPEC's SF33A-4 aluminum flywheel.
SPEC rates SF333F-4 at 671 ft-lb of torque capacity, the highest number in its single-disc Focus ST lineup we carry. The disc uses SPEC's Stage 3+ friction, a carbon semi-metallic material laid over the full face of the disc rather than split into pucks. That full face is why a Stage 3+ engages more progressively than a puck-style race disc while still gripping hard when it is hot. SPEC lists the kit weight at 15 lb.
The dash 4 family is non-ratcheting. Instead of a self-adjusting pressure plate that works with the stock dual-mass flywheel, it uses a conventional cover designed around SPEC's single-mass billet flywheel. That is why the SF33A-4 is required and the factory flywheel cannot be reused. If you would rather keep the original flywheel, the ratcheting SF333F-3 Stage 3+ kit is built for that, at a lower 525 ft-lb rating.
Slip is mechanical and does not set its own trouble code, so scan for boost and fueling codes first and fix those before blaming the clutch.
Datalog a full-throttle pull in fourth gear from low rpm. Boost on target with engine rpm climbing faster than vehicle speed means the clutch is slipping; low boost means a leak or wastegate fault is the real problem. Check for gear oil or engine oil weeping at the bellhousing, because contamination will glaze a new disc quickly. Our flare vs. slip guide covers how to read what the tach is telling you, and the slipping diagnosis guide walks through the order of checks.
Our listing covers the Ford Focus ST 2.0L EcoBoost for 2012-2013. SPEC's own catalog lists SF333F-4 for the Focus ST across 2012-2018 production, but only when paired with the SF33A-4 flywheel. It does not fit the Focus RS, the 2.0L non-turbo Focus or any automatic or PowerShift car. Because Ford used the same basic ST drivetrain through the run, the flywheel requirement matters more than the model year: if the car is still on the factory dual-mass, budget for the flywheel or pick the ratcheting kit instead. Send your year and VIN if you want us to double-check before ordering. Other clutch and drivetrain kits are in the rebuild kits category.
If your ST is a street car with a tune and the power level does not need 671 ft-lb, the SPEC SF333H-4 kit uses the same SF33A-4 flywheel with a milder disc.
| Brand | SPEC |
| Part number | SF333F-4 |
| Fits | Spec 12-13 Ford Focus 2.0T ST EcoBoost Stage 3+ 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. SF333F-4 is a non-ratcheting kit and SPEC lists it for use only with its SF33A-4 billet aluminum flywheel. If you want to keep the factory flywheel, the ratcheting SF333F-3 is the Stage 3+ kit for that.
SPEC rates it at 671 ft-lb of torque capacity, compared with 525 ft-lb for the ratcheting SF333F-3, which makes it the better match for big-turbo or heavily modified Focus ST builds.
SPEC catalogs SF333F-4 for the Focus ST across 2012-2018 with the SF33A-4 flywheel. Our listing is cataloged for 2012-2013, so send us your VIN and we will confirm before you order.
The Stage 3+ disc is full faced, so engagement is smoother than a puck disc. Pedal feel is firmer than stock and the 11 lb aluminum flywheel adds some idle gear rattle, which most owners accept on a modified car.
Bleed the clutch hydraulics with the fluid grade printed on the reservoir cap, and flush out the old dark fluid while the system is open.
