WILWOOD 300-17297 Wilwood 300-17297 Caliper Piston Spring Knock Back

Restore consistent brake caliper piston positioning with the Wilwood 300-17297 Caliper Piston Spring Knock Back. Designed for compatible Wilwood calipers using pistons in the one-inch to one-and-a-half-inch diameter range, this replacement spring helps reduce piston knock-back caused by caliper flex, rotor runout, or other movement within the braking system. Maintaining proper piston position can support more consistent pedal feel and responsive brake operation in demanding driving and racing applications.
The Wilwood 300-17297 spring is manufactured from stainless steel for durability and resistance to corrosion in the harsh environment surrounding disc brake components. Its compact design installs within the caliper piston assembly and applies controlled spring pressure to help keep the piston properly positioned when the brakes are released. The spring uses a three-pound-per-inch rate to provide dependable support without interfering with normal caliper function when correctly matched to the application.
This caliper piston spring is intended for use with Wilwood calipers equipped with compatible piston sizes and should be selected according to the specific caliper design and service requirements. It is supplied individually, making it suitable for replacement, repair, or assembly needs when servicing a single piston location. Use the Wilwood part number 300-17297 to help verify compatibility with the caliper and piston configuration before installation. Professional installation and inspection of related seals, pistons, and caliper components are recommended whenever the braking system is serviced.

Features:

• Application: Caliper piston knock-back spring for compatible Wilwood brake calipers

• Compatibility: Designed for Wilwood calipers using one-inch to one-and-a-half-inch diameter pistons

• Material: Stainless steel construction for durability and corrosion resistance

• Spring Rate: Three pounds per inch for controlled piston positioning

• Quantity: Supplied as one individual spring