Wilwood 120-8725 Powerlite Radial Mount Brake Caliper - 4-Piston

The Wilwood Powerlite four-piston radial mount caliper delivers exceptional performance with a starting weight of just 2.26 pounds, combining a sleek profile with superior strength and durability in high-temperature environments. Designed for sports, rally, and off-road driving applications, this caliper represents the pinnacle of lightweight braking technology.

Stress-Flow Forged Construction:

The caliper body is manufactured using stress-flow forging, a process that re-aligns the metal's grain structure within the contour of the caliper body. This eliminates internal stresses and grain structure interruptions that occur with traditional billet machining, resulting in a significantly stronger component.

FEA-Optimized Radial Transition Design:

Finite element analysis engineering eliminates steps and shoulders between the piston housing body and caliper bridges. The radiused transitions in this critical area substantially increase resistance to deflection and caliper separation under extreme braking loads.

Advanced Pad Retention System:

• Uses 7912 type brake pads with Quick-Clip top-mounted pad retainers
• Eliminates pad support step in caliper bottom for increased mounting flexibility
• Allows closer mounting to hub on small wheel and rotor applications
• Enables easy pad access and replacement without caliper removal
• Pad radius matches rotor diameters from 9.45" (240mm) to 11.75" (298.5mm)
• Fits inside many 13.00" (330.2mm) wheel applications

SRS Stainless Steel Bridge Plates:

Every caliper includes Wilwood's proprietary SRS (Stainless Radial Slot) bridge plates that eliminate bridge wear caused by pad gouging. The spring-loading action eliminates pad rattle and dampens vibration harmonics that contribute to brake squeal.

Service-Friendly Features:

• Internal fluid passages eliminate external brake lines
• Four corner bleed screws ensure complete air evacuation
• Can be mounted in any of four positions for installation versatility
• Radial mounting simplifies service and caliper removal
• Compatible with bracket kits for lug mount caliper replacement
• Bracket kits provide two planes of adjustment for precise rotor alignment

Brake pad compounds are available for the full range of sport and competition applications. Bracket kits (sold separately) include radial mount bracket, studs, locknuts, and caliper alignment shims.