Wilwood Forged Superlite 4 Caliper with 1.88/1.75-inch Pistons and .81-inch Disc – Part #120-11138

Description

The Wilwood Forged Superlite 4 caliper (Part #120-11138) is engineered for high-performance braking in demanding motorsport and off-road environments. Featuring a forged aluminum construction, this caliper offers strength and durability while maintaining a lightweight profile for optimal vehicle handling. The caliper is equipped with 1.88-inch and 1.75-inch pistons, ensuring balanced pad pressing and consistent braking response across various conditions.
The FSLI4 and FSLI4/ST models incorporate differential bore pistons that effectively compensate for mechanical loading and temperature variations across the pad face. This design reduces pad taper wear during sustained high-temperature braking, making it ideal for racing, rally, off-road, and oval track applications. The ST models enhance heat protection with Thermlock® pistons, which block heat transfer from the pads and lower caliper, fluid, and seal temperatures by up to 25% compared to standard stainless steel pistons.
These calipers deliver exceptional performance when subjected to prolonged and aggressive braking on dirt, asphalt, or mixed surfaces. Their robust construction and innovative features help maintain consistent brake pedal feel and pad lifespan, even during extended periods of high thermal stress. Whether for competitive racing or heavy-duty off-road use, the Wilwood Forged Superlite 4 caliper provides superior stopping power and durability for a wide range of automotive applications.

Features:

• Forged aluminum construction for strength and lightweight design

• Differential bore pistons improve pad wear and response

• Thermlock® pistons in ST models reduce heat transfer and lower operating temperatures

• Piston sizes of 1.88 inches and 1.75 inches ensure balanced braking

• Suitable for high-temperature applications including racing and off-road driving