MACK part description

SAFETY VALVE

Mack Air Brake Pressure Protection Valve

Use the Mack Air Brake Pressure Protection Valve to achieve safe and reliable braking on your Mack truck. This OEM replacement part is specifically engineered to prevent air loss in the brake system, ensuring the safety and efficiency of your vehicle's air brakes. Made with high-quality materials, the Mack 21816920 is built to withstand rigorous use and harsh conditions, providing long-lasting performance and durability. It is designed to work seamlessly with other Mack brake components, ensuring consistent and efficient braking.

Features & Benefits

  • Automatically releases excessive air pressure, preventing brake lockup during malfunctions or runaway pressure
  • Durable construction to deliver consistent and dependable operation, even in the toughest driving conditions
  • Guarantees genuine Mack engineering and compatibility with specific truck models
  • Engineered for a precise fit, facilitating easy replacement without modifications

Mack trucks are built to last, but when the time for repair and maintenance comes it’s strongly recommended to use genuine Mack® components. Designed and manufactured according to strict OEM specifications, Mack parts offer the same engineering and performance as their stock equivalent. This ensures a seamless fit, smooth installation, and reliable operation overall. Mack offers a wide range of genuine parts, including engine, exhaust, transmission, cab, and body parts and accessories. It also offers remanufactured components that offer the same good-as-new quality at a more accessible price range. All genuine Mack parts are tested in both the laboratory and field environments to ensure they meet or exceed industry standards.

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