21353457 Volvo VHD D12 Air Compressor

What does a single cylinder compressor do?

This single cylinder air compressor serves as a critical component within the pneumatic braking system of heavy commercial vehicles. It is designed to provide consistent air pressure required for the operation of air brake systems and other pneumatic components. Built with high-strength components, it ensures long-term reliability under demanding thermal and mechanical loads.

Vehicle compatibility and technical specifications

This unit is specifically compatible with Volvo VHD trucks equipped with D12 engines. It features a water-cooled design with M16x1,5 inlet and outlet ports to manage operating temperatures effectively. The assembly includes an integrated unloader port (M12x1,5) and is optimized for high-duty cycles in heavy-duty applications.

Installation and maintenance guidance

For proper installation, technicians should verify the cooling system connection and ensure all ports, including the M26x1,5 air outlet, are secured to prevent leaks. Regular inspection of the water cooling lines and air inlet ports is recommended to maintain optimal swept volume performance and prevent system pressure drops.

Operational reliability

When replacing this unit, verify that the drive type and cooling configuration match the existing engine setup to ensure seamless integration into the vehicle's pneumatic circuit.

OE cross-reference

1300 025 001 (Single Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21353457.