What does 'Stage 3+' mean for this clutch disc?

The Stage 3+ designation from SPEC indicates this clutch disc is built for significantly increased torque capacity. It's suitable for modified engines that produce more power than stock, often through upgrades like turbochargers, superchargers, or engine swaps.

Is this clutch disc a direct replacement for my factory clutch?

This disc is a direct replacement only if you are using a SPEC Stage 3+ clutch kit with a 10-spline, 10.5-inch disc configuration. It is not a direct replacement for a factory clutch assembly.

What other parts do I need to install this clutch disc?

This product is the clutch disc only. You will need a compatible SPEC pressure plate and flywheel for your 1999-2004 Mustang Cobra or Mach 1 to complete the clutch assembly. It's recommended to replace the pilot bearing and throw-out bearing at the same time.

Specifications

Brand: SPEC
Part #: SFD873F

Spec 99-04 Mustang Cobra/Mach Stage 3+ Clutch w/10 Spline Replacement DISC ONLY (SF873F)

Name: Spec 99-04 Mustang Cobra/Mach Stage 3+ Clutch w/10 Spline Replacement DISC ONLY (SF873F)
Brand: SPEC
SKU: spec-spec-99-04-mustang-cobra-mach-stage-3-clutch-w-10-spline-replacement-disc-o-t14-4370518
Price: 488.22 USD
Availability: BackOrder

$488.22

On Backorder

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SPEC Stage 3+ clutch disc for 1999-2004 Mustang Cobra/Mach. 10 spline, 10.5" diameter.

Key Features

Fits 1999-2004 Ford Mustang Cobra and Mach 1 models.
Replacement clutch disc for SPEC Stage 3+ clutch kits.
10-spline count for the input shaft.
10.5 inch disc diameter.
Designed for increased holding capacity over stock.
Suitable for modified engines with higher power output.

This clutch disc is specifically designed for the 1999-2004 Ford Mustang Cobra and Mach 1 models with a 10-spline transmission input shaft. Ensure compatibility with your existing SPEC clutch kit components.

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About this part

Product Details

SPEC is well-known for making robust drivetrain components, and this Stage 3+ clutch disc is a prime example of their work for performance Mustangs. This is a replacement disc specifically for the 1999-2004 Mustang Cobra and Mach 1 models equipped with a 10-spline input shaft. It's designed to handle more power than the stock clutch, making it a solid option if you've upgraded your engine or plan to.

This disc features a 10.5-inch diameter and is built for improved engagement and holding power. The Stage 3+ designation means it's intended for applications that see significant power increases, often from modifications like forced induction or a larger displacement engine. While it offers a noticeable step up in performance, it's still designed to be manageable for daily driving, though you might notice a firmer pedal feel compared to stock.

This listing is for the disc only. If you're replacing a worn-out clutch disc in your Cobra or Mach 1, this SPEC unit is a direct fit for the corresponding SPEC clutch kit. Make sure you have the correct SPEC flywheel and pressure plate to match this 10-spline disc for proper operation.