Spec 13 Ford Focus 2.0T ST EcoBoost Stage 3+ Clutch Kit (Use with FW SF33A-3))
SPEC SF333F-3 is a Stage 3+ single-disc clutch kit for the third-generation Ford Focus ST with the 2.0L EcoBoost and six-speed manual. It is for the ST that has a tune, intake, intercooler or turbo upgrade and now slips when boost builds in third and fourth, flares the revs on a quick shift, or smells hot after a few pulls. The detail that matters most on this part number is the dash 3: it is SPEC's ratcheting version, so you are not forced into an aftermarket flywheel to use it.
The EcoBoost makes strong midrange torque, and a tune adds most of its gain right where the factory clutch has the least margin. SPEC rates SF333F-3 at 525 ft-lb of torque capacity. The disc is SPEC's Stage 3+ material, a carbon semi-metallic full-faced lining. A full face spreads the load over the whole friction surface, so takeoff is smoother and more forgiving than a puck disc while the friction level is well above the stock organic material and holds up better when hot. SPEC lists the kit's weight at 16 lb.
Ratcheting means the pressure plate adjusts itself as the disc wears, the same self-adjusting idea Ford uses from the factory. SPEC lists the dash 3 kits for use with the original dual-mass flywheel or a billet flywheel with the OE clutch pattern. That is the key difference from the SF333F-4 Stage 3+ kit, which is non-ratcheting, rated higher at 671 ft-lb, and must be paired with SPEC's SF33A-4 flywheel.
Clutch slip by itself does not store a trouble code, so read any engine codes first to rule out boost or fueling faults.
Log boost, rpm and vehicle speed on a pull in fourth from low rpm. If boost is on target but rpm runs ahead of speed, the clutch is slipping. If boost is low, chase the leak or wastegate before buying a clutch. Look at the bellhousing seam for oil too, since a leaking seal will ruin a new disc in short order. Our flare vs. slip guide and slipping diagnosis guide explain how to tell clutch slip from other problems.
Our listing title reads 2013 Focus ST and names the SF33A-3 flywheel. SPEC's own catalog lists SF333F-3 for the Focus ST 2.0L EcoBoost across 2012-2018 production, for use with the original dual-mass flywheel or a billet flywheel built to the OE clutch pattern. The SF33A-3 named in the title is SPEC's matching aluminum flywheel for the ratcheting kits, not a requirement. This kit does not fit the Focus RS, the non-ST Focus or the automatic and PowerShift cars. Send us your year and VIN if you want us to confirm. Related Focus parts are in the rebuild kits category.
If your ST sees track days and launches more than commuting, compare the Competition Clutch 7248-2600 ceramic kit for the same car.
| Brand | SPEC |
| Part number | SF333F-3 |
| Fits | Spec 13 Ford Focus 2.0T ST EcoBoost Stage 3+ Clutch Kit (Use with FW SF33A-3)) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. SPEC lists SF333F-3 as a ratcheting kit for use with the original dual-mass flywheel or a billet flywheel with the OE clutch pattern. SF33A-3 is SPEC's matching aluminum flywheel if you want to replace a worn dual-mass.
Both are Stage 3+ kits for the Focus ST. The dash 3 is ratcheting, rated 525 ft-lb, and works with the OE flywheel. The dash 4 is non-ratcheting, rated 671 ft-lb, and must be used with the SPEC SF33A-4 flywheel.
No. The RS uses a different clutch. SPEC lists SFFRS3H for the 2016-2018 Focus RS.
SPEC's Stage 3+ uses a full-faced carbon semi-metallic lining, which engages more smoothly than its puck-style Stage 3 disc. Expect firmer, quicker engagement than stock but normal street manners.
SPEC rates SF333F-3 at 525 ft-lb of torque capacity, well above the factory clutch, which suits most tuned and bolt-on turbo Focus ST builds.
