Wilwood FNSL4R Rear Big Brake Kit 140-18152-D - 12.88in Slotted SRP Rotor, EPB, 6-Lug Big Ford New Style
This Wilwood Forged Narrow Superlite 4R (FNSL4R) rear big brake kit is built for a 6-lug, Big Ford new-style rear axle housing, using a forged 4-piston caliper and a 12.88in slotted SRP rotor. An integrated electronic parking brake (EPB) is included.
- Caliper: Wilwood Forged Narrow Superlite 4R (FNSL4R), forged 4-piston
- Rotor: 12.88in slotted (SRP), rear
- Axle fit: 6-lug, Big Ford new-style housing
- Parking brake: integrated electronic parking brake (EPB)
The kit includes the caliper, rotor, mounting bracket, and hardware needed for a complete rear axle installation. The slotted rotor face helps vent pad gas and debris, adding to the swept-area and heat-capacity gains this larger caliper and rotor bring over a factory rear brake.
Confirm fitment by year, trim, and brake package before ordering - this kit is built around the Big Ford axle flange rather than a single vehicle. Free shipping on orders over $75 to the lower 48 states (Alaska, Hawaii and U.S. territories pay calculated shipping), 30-day returns.