20866605 SP1 Volvo VNL D12 Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component within the pneumatic braking system, providing the necessary air pressure for heavy commercial vehicle operations. Built with high-strength components, it ensures consistent air delivery and long-term durability under demanding thermal conditions. The unit features a water-cooled design and includes an ESS feature for optimized system performance.

Vehicle and engine compatibility

This specific model is engineered for compatibility with Volvo VNL trucks equipped with D12 engines. It is an essential replacement part for workshop technicians maintaining fleet reliability. The unit's technical configuration includes a 704cm³ swept volume and specific port dimensions to ensure seamless integration into the existing air circuit.

Installation and maintenance guidance

For correct installation, technicians should verify that the water inlet and outlet ports (M16x1,5) match the vehicle's cooling lines. This through-drive compressor is designed for precise fitment within the engine's drive assembly. Always check that the air unloader port (M12x1,5) and air inlet port (Ø35) align with the existing pneumatic routing to avoid leaks or pressure drops.

System integration

Consult your authorized distributor to ensure exact fitment with existing engine configurations and to verify the cooling system compatibility.

OE cross-reference

1300 185 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20866605SP1.