The Wilwood 240-3902 washer is designed for automotive brake and chassis applications where dependable fastening support is required. Manufactured from high-strength carbon steel, this washer provides a stable bearing surface between a fastener and the mounting material, helping distribute clamping force and protect surrounding components during installation and service.
The washer features a .441-inch inside diameter and a 1.000-inch outside diameter for compatibility with the appropriate Wilwood hardware and mounting locations. Its slim profile supports applications where clearance is limited while maintaining reliable contact under normal automotive operating conditions. The carbon steel construction delivers the strength needed for secure assembly in performance-oriented and standard automotive systems.
A corrosion-resistant finish or treatment helps protect the washer during handling, installation, and use. As a genuine Wilwood component, part number 240-3902 is suited for builders, technicians, and enthusiasts who require consistent fit and dependable replacement hardware. Use this washer with compatible Wilwood components and follow the applicable installation instructions for proper torque and assembly.
Feature: High-strength carbon steel construction
Feature: Corrosion-resistant finish or treatment
Feature: .441-inch inside diameter
Feature: 1.000-inch outside diameter
Feature: Slim .016-inch profile
Feature: Designed for compatible Wilwood automotive applications
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