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Spec 3/11-13 Ford Mustang GT Boss 9-Bolt Cover 5.0L Steel Flywheel SPEC SPECSF50S-9
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Spec 3/11-13 Ford Mustang GT Boss 9-Bolt Cover 5.0L Steel Flywheel

SPEC
SPECSF50S-9
Flywheels
Out of stock
$ 389.00 $ 350.10

SKU: CSF50S-9

SPEC SF50S-9 2011-2014 Ford Mustang GT Boss 302 5.0L Steel Flywheel

This SPEC steel flywheel (MPN SF50S-9) replaces stock components in 2011-2014 Ford Mustang GT 5.0L models and 2012-2013 Boss 302 with a single-mass design built for daily driving and track conditions. It delivers consistent power transfer and eliminates slippage under high torque up to 700 ft-lbs. Precision engineering ensures smooth engagement and extended drivetrain life.

Key Features

  • Steel Construction: High-grade steel withstands heat from aggressive shifts for reliable performance over long distances.
  • 9-Bolt Pattern: Direct match to factory clutch cover spacing works with OEM or aftermarket clutches rated to 700 ft-lbs.
  • Precision Balanced: Balanced to 1.5 grams tolerance removes vibrations and protects transmission components.
  • OEM-Weight Design: 29 lbs matches stock feel while improving throttle response over lighter aluminum flywheels.
  • Single Mass Flywheel: Sharpens revs and pairs with performance clutches for faster acceleration.

Product Notes

  • Pair with SPEC clutch kits for full drivetrain upgrade.
  • Inspect pilot bearing and throwout bearing during installation.
  • Securely packaged in 16 x 16 x 6 inch box to prevent shipping damage.

Installation Notes

  • Professional installation recommended.
  • Transmission removal required. Use ARP flywheel bolts (not included).
  • Compatible with stock bellhousing and pressure plate hardware.

This Part Fits

Year Make Model Submodel
2011-2014 Ford Mustang GT 5.0L
2012-2013 Ford Mustang Boss 302

Why Choose SPEC?

  • Over 30 years of clutch engineering expertise for American muscle cars.
  • Manufactured in the USA with dyno-proven components.
  • Direct bolt-on design tested for 5.0L Coyote engines.

Frequently Asked Questions

  • Q: Will this fit a 2014 Mustang GT 5.0L?
    A: Yes, direct fit for all 2011-2014 Mustang GT 5.0L models with 9-bolt clutch cover.
  • Q: What material is the flywheel?
    A: High-tensile steel delivers durability and smooth power compared to aluminum.
  • Q: What is the warranty and install process?
    A: 12-month/12,000-mile warranty. Requires transmission drop and torque specs per SPEC instructions.

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Sturdy cardboard box 16 x 16 x 6 inches
  • Weight: 29 lbs product / 34 lbs shipping

Request For Information

Have questions about Spec 3/11-13 Ford Mustang GT Boss 9-Bolt Cover 5.0L Steel Flywheel? Fill out the form below and we'll get back to you by the next business day.
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