SKU: CSF503H-9
Spec SF503H-9 2011-2014 Ford Mustang 5.0L GT / 2012-2013 Boss 302 9-Bolt Cover Stage 2+ Clutch Kit
This SPEC SF503H-9 Stage 2+ clutch kit handles reliable power for 2011-2014 Ford Mustang GT 5.0L Coyote engines and 2012-2013 Boss 302 models with 9-bolt flywheel covers. Rated to 650 ft-lbs torque it suits modified street and track applications with smooth pedal feel and fast shifts on MT82 6-speed transmissions. Built for high-stress durability this kit delivers consistent performance launch after launch.
Key Features
- High Clamp Load Pressure Plate: Delivers 25% more clamping force than stock to hold 650 ft-lbs without slippage in high-demand use.
- Carbon-Kevlar Full-Facing Disc: Blends carbon fiber and Kevlar for excellent heat resistance smooth engagement and longer life during hard launches.
- Sprung Steel Hub: Absorbs driveline shocks to shield transmission gears and enhance everyday driving comfort.
- Complete Kit Contents: Pressure plate disc heavy-duty throwout bearing pilot bearing rear main seal and alignment tool for easy replacement.
- 9-Bolt Flywheel Compatibility: Machined to fit OEM 9-bolt covers as a direct bolt-on with no alterations needed.
Product Notes
- Inspect flywheel surface for resurfacing or replacement prior to installation to avoid premature wear.
- Follow 500-mile break-in procedure with no drag racing or burnouts for optimal bedding.
- Packages ship in protective cardboard box measuring 17 x 13 x 8 inches.
Installation Notes
- Professional installation recommended.
- Flywheel must be resurfaced to 0.005 inch maximum runout or replaced with new SPEC billet flywheel.
- Use OEM torque specs for pressure plate bolts and verify MT82 input shaft splines match 26-spline disc.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011-2014 | Ford | Mustang | GT |
| 2012-2013 | Ford | Mustang | Boss 302 |
Why Choose SPEC?
- Over 30 years of clutch manufacturing experience focused on American muscle cars.
- Dyno-tested kits proven on track and street for consistent results.
- Precision CNC-machined components assembled in the USA with strict quality controls.
Frequently Asked Questions
-
Q: Will SF503H-9 fit my 2013 Mustang GT 5.0L with stock 9-bolt flywheel cover?
A: Yes it bolts directly to OEM 9-bolt covers on 2011-2014 GT models with MT82 transmission and 26-spline input shaft. -
Q: What friction material is used in this Stage 2+ disc?
A: Full-facing carbon-Kevlar composite material resists fade at high RPM and handles 650 ft-lbs reliably. -
Q: What warranty covers this clutch kit?
A: Limited lifetime warranty against manufacturing defects when installed by certified technician with proof of proper break-in.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Secure foam-lined box 17 x 13 x 8 inches
- Weight: 28.5 lbs
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