31282
Jake Brake Master Piston Model 797
Detroit Diesel

The master piston for the Jake Brake assembly is a key component responsible for translating hydraulic or pneumatic pressure into mechanical movement that actuates the exhaust brake. Its lightweight design minimizes response time, allowing for quick, precise engagement of the braking system. Crafted from high-quality materials, it resists deformation and wear, ensuring consistent performance across countless braking cycles. The master piston’s integrity directly influences the effectiveness of engine braking, making it a critical element in maintaining control during downhill driving or engine retarding. Proper installation and maintenance of this piston ensure that the brake system functions reliably and efficiently, contributing to vehicle safety and brake longevity. Source One Parts Center offers this piston as a vital replacement part designed to uphold the high standards required for heavy-duty engine braking components.