Wilwood PS-1 Caliper - LH -12.00" Piston / .19" Rotor / 2.5" Mount
Wilwood PS-1 Caliper - LH -12.00" Piston / .19" Rotor / 2.5" Mount
SKU:120-8374
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The Wilwood PS-1 Caliper is a high-performance, compact brake component designed for racing and high-demand applications. Constructed from lightweight cast aluminum, it weighs only 0.93 pounds, making it ideal for reducing unsprung mass. The caliper features two stainless steel deep cup pistons with a 12.00-inch piston diameter, which help minimize heat transfer from the brake pads to the brake fluid, ensuring consistent braking performance under extreme conditions. Its sleek low-profile design incorporates high-temperature square piston seals for effective piston retraction and internal crossover brake fluid passages that eliminate external crossover tubes, simplifying installation and maintenance. This caliper is engineered to deliver precise, reliable braking force with durability and heat resistance, making it suitable for demanding motorsport environments.
The Wilwood PS-1 Caliper is compatible with rotors ranging from 6.00 to 9.00 inches in diameter and is designed for LH (left-hand) mounting. It fits a variety of performance vehicles requiring a 12.00-inch piston caliper, especially in racing, track days, or high-performance street setups. The caliper mounts on a 2.5-inch bracket and is intended for direct bolt-on installation on compatible brake setups. It is suitable for use in applications where space is limited but high braking capacity is essential. The kit includes the caliper itself, with all necessary internal components, and is ideal for enthusiasts seeking a lightweight, durable, and high-performance brake upgrade.
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Overview
Overview
The PS-1 Caliper is compact, lightweight (.93 pounds) and combines the strength of cast aluminum construction with a sleek low profile design. This caliper utilizes two stainless steel deep cup pistons to minimize heat transfer from the .30" thick pad to the brake fluid while employing high temperature square piston seals to control piston retraction. Internal crossover brake fluid passages eliminate the use of external crossover tubes. The PS-1 fits rotors with diameters ranging from 6.00" to 9.00", thickness sizes from .15" to .20".
Wilwood is a leading manufacturer of high-performance brake systems and components to fit a wide range of track and street applications. They offer everything from individual components like rotors, calipers, and pads to complete bolt-on kits.
Wilwood Engineering designs and manufactures high-performance disc brake systems. Since the company’s inception in 1977 by Bill Wood, we have developed a substantial matrix of brake components and engineering techniques that allow us to quickly and reliably create brake systems for almost any application. Our core ability is the rapid development of custom engineered brake systems using a combination of off-the-shelf and custom components. In addition to designing and manufacturing brakes for all types of competitive motorsports, Wilwood also manufactures brake systems and components for agricultural equipment, industrial applications, utility vehicles, snowmobiles, quads, motorcycles and military vehicles.
With headquarters in Camarillo, California, Wilwood employs approximately 320 people. We have on-shelf stock of more than 300 different brake calipers, 200 rotor designs, 100 master cylinder designs and a wide assortment of brackets, fittings, valves and brake lines. Our off-shelf brake calipers range in size from tiny calipers used on go-carts and light duty industrial equipment to heavy-duty original equipment brakes for the U.S. military Humvee.
Wilwood's engineering department uses the latest computer-aided design and manufacturing techniques in conjunction with finite element analysis, dynamic test and cycle test equipment to find high-performance and reliability solutions for the most difficult braking tasks. Our extensive inventory of proprietary on-the-shelf components allow us to provide cost-effective solutions for unique brake applications.
Wilwood is ISO 9000 compliant and has extensive experience maintaining quality levels of 100ppm or less for original equipment manufacturers.
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