4020005 Washer Brake Caliper Mechanism

The 4020005 washer is a critical component within the brake caliper mechanism, designed to ensure stable and reliable assembly within heavy-duty braking systems. This part plays a vital role in maintaining the structural integrity of the caliper assembly under rigorous operating conditions, providing necessary spacing and tension control.

This technical component is an OE-equivalent part used in WABCO PAN 17, PAN 19 SINGLE, and PAN 22 SINGLE systems. By ensuring precise fitment within the air disc brake caliper mechanism, it supports the long-term reliability of the braking hardware in heavy commercial vehicles.

For workshop technicians, this washer offers a straightforward replacement solution during routine brake system maintenance or caliper overhauls. It is engineered to meet strict dimensional tolerances to ensure compatibility with WABCO hardware. Regular inspection of such small components during service intervals can prevent larger mechanical issues within the pneumatic braking system.

Proper installation of this washer ensures that the caliper mechanism operates without interference, maintaining the high standards required for heavy commercial vehicle safety and performance.