4020004 Washer Brake Caliper Mechanism

This technical component serves a critical role within the brake caliper mechanism, providing necessary spacing and structural stability during operation. Designed to withstand the rigorous demands of heavy-duty braking cycles, it ensures the mechanical integrity of the caliper assembly. The part is manufactured using high-strength components to maintain performance under constant pressure.

4020004 is the OE-equivalent washer used in WABCO PAN 19 SINGLE, WABCO PAN 22 SINGLE, and WABCO PAN 17 systems. This product is engineered to meet the precise dimensional requirements of these specific brake systems, ensuring seamless integration and reliable performance in professional workshop environments.

For workshop technicians, this part offers a reliable solution for routine maintenance and brake system overhauls. It is essential to verify the specific model compatibility—such as PAN 17, PAN 19, or PAN 22—to ensure perfect assembly and prevent mechanical deviations during service. Regular inspection of these components during brake maintenance can help maintain optimal system responsiveness.