85000491 SP1 Compatible Volvo FM12 Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component in the pneumatic braking system, providing the necessary air pressure for heavy commercial vehicle operations. Engineered with high-strength components, it ensures stable air delivery and reliable performance under high-pressure demands. The unit features a water-cooled design to effectively manage operating temperatures during continuous use.

Vehicle and engine compatibility

This specific model is designed to be compatible with Volvo FM12 trucks equipped with D12D engines. The design includes an ESS feature and a water-cooled valve plate to enhance thermal management and system longevity. It is essential to ensure that the drive gear and port configurations match the original equipment requirements during installation.

Installation and maintenance guidance

Maintenance of this compressor involves regular checks of the water inlet (M16x1,5) and outlet ports to prevent blockages. Technicians should verify the air outlet (M26x1,5) and unloader port (M12x1,5) connections during service intervals to prevent leaks. Proper lubrication and coolant flow are vital for maintaining the efficiency of the Ø85.00 mm bore and 62 mm stroke mechanism.

Maintenance and troubleshooting

When replacing this unit, always verify that the through-drive type and mounting specifications align with the existing engine configuration to ensure seamless integration into the vehicle's pneumatic system.

OE cross-reference

1300 185 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 85000491SP1.