Specifications
- Brand
- Wilwood
- Part #
- 140-9221-D
- UPC
- 889545031225

Wilwood Narrow Superlite 4R Rear P-Brk Kit 12.88in Drilled 2005-2014 Mustang
$2220.79
Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.
Fits 2005-2014 Ford Mustang. Wilwood Narrow Superlite 4R rear brake kit with 12.88in drilled rotors for improved stopping power.
Key Features
- Fits 2005-2014 Ford Mustang.
- Wilwood Narrow Superlite 4R rear disc brake kit with parking brake functionality.
- Features four-piston FNSL4R calipers and 12.88-inch two-piece drilled rotors.
- Includes high-performance BP-10 compound brake pads for balanced street and performance use.
- Internal shoe system provides a clean installation and strong static holding power for parking.
- Designed to complement front big brake upgrades for optimized braking balance.
Product Details
Wilwood is well-known for making high-performance braking components, and this Narrow Superlite 4R rear disc kit is a prime example of their work. If you're looking to significantly upgrade the braking performance on your 2005-2014 Ford Mustang, especially to complement a front big brake setup, this kit is designed to do just that. It offers a substantial improvement over stock, giving you more confidence when you need to slow down.
This kit features Wilwood's FNSL4R four-piston calipers paired with 12.88-inch two-piece rotors. The rotors come drilled, which helps with heat dissipation and can reduce weight. Inside the caliper assembly, a neatly integrated shoe system acts as a parking brake, providing strong holding power without adding extra bulk or clutter to the rear axle. This design ensures a clean installation and maintains the functionality you need for daily driving or track use. The kit includes Wilwood's BP-10 compound pads, which are formulated for a good balance of performance and street drivability.
When you're upgrading your Mustang's brakes, especially with a kit like this, it's important to ensure everything is properly installed. This kit is designed as a direct fit for the specified Mustang models, simplifying the installation process. You'll notice a significant difference in stopping power and feel, particularly during spirited driving or when carrying extra weight. Wilwood offers optional caliper finishes and rotor designs, allowing you to personalize the look to match your Mustang's style.
Specifications
- Brand
- Wilwood
- Manufacturer Part #
- 140-9221-D
- UPC
- 889545031225
Frequently Asked Questions
You Might Also Like
Similar products from the same category

Wilwood Dynapro Low-Profile 11.00in P-Brake Kit New Big Ford 2.50in Off Front Mount

Wilwood 2020+ Jeep Gladiator Narrow Superlite 4R Rear Drill & Slot. Brake Kit 14.00in Black w/ Lines

Wilwood 2021 Ford F-150 Raptor Aero6-DM Front Brake Kit - D&S - Red

Wilwood 2021 Ford F-150 Raptor Aero6-DM Front Brake Kit - D&S
Wilwood Narrow Superlite 4R Rear P-Brk Kit 12.88in Drilled 2005-2014 Mustang
