Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This Wilwood tapered spring acts behind a compatible caliper piston to counter piston knockback associated with vibration or mounting deflection. It is specified for conventional stainless steel pistons from 1.62 to 1.88 inches in diameter that have the required updated relief cut. Bill Wood established Wilwood Engineering in 1977. Based in Camarillo, California, the company makes disc-brake systems and components for motorsport, street-performance and specialized uses, including brake calipers and rotors, hydraulic master cylinders, valves, fittings and lines. System requirements determine the appropriate component combination.
Technical Details
- Manufacturer part number: 300-2434
- Material: Stainless
- Finish: Plain
- Package: 1 piston knockback spring
- Weight: 0.010 lb
- Spring end outside diameters: 0.77 / 1.22 in
- Length: 1.00 in
- Manufacturer spring-rate listing: 2.63 lb
- Piston requirement: updated relief cut
Fitment & Compatibility
Check the piston construction and relief cut before fitting a spring; early stainless piston versions may lack the required clearance. Match the 1.22-inch maximum spring diameter and 1.00-inch length to the approved caliper configuration.
Manufacturer Documents
Before ordering for a modified assembly, send PMB Performance the kit number and relevant component details. Our over 20 years of experience can help you confirm the correct combination.
