85000118 Volvo FM12 D12D Single Cylinder Compressor

What does a single cylinder compressor do?

This single cylinder compressor serves as a critical component within the air brake system, providing the necessary pressurized air for braking and pneumatic functions. Engineered with high-strength components, it ensures consistent pressure delivery even under heavy commercial vehicle operating conditions.

Compatible Volvo FM12 engine fitment

Specifically designed for Volvo FM12 trucks equipped with D12D engines, this unit features a Ø85.00 mm cylinder bore and a 62 mm stroke. It is compatible with various FM12 variants including the 460, 340, 420, 380, and the FM 12H series. The unit is water-cooled and includes an ESS feature for optimized performance.

Installation and maintenance guidance

For correct installation, technicians should verify the M16x1,5 water inlet and outlet ports and ensure the M26x1,5 air outlet is properly secured. This through-drive component is built to withstand high thermal loads through its integrated water-cooled valve plate design.

Troubleshooting and system checks

Regular inspection of the air unloader port (M12x1,5) and inlet port (Ø35) can prevent system pressure drops. Maintaining clean coolant flow through the M16 ports is essential for preventing overheating during prolonged operation in heavy-duty service.

OE cross-reference

1300 020 001 (Single Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 85000118.