8112851 SP1 Volvo Compatible Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor is a vital component for the pneumatic air brake system, ensuring consistent air pressure delivery for heavy commercial vehicle braking and pneumatic operations. Built with high-strength components, it is designed to withstand the rigorous thermal and mechanical stresses typical of heavy-duty engine environments.

Compatible vehicles and engine fitment

This specific unit is compatible with Volvo B10M trucks equipped with D10A engines. It features a water-cooled design with a water inlet and outlet port size of M16x1,5, ensuring optimal temperature regulation during high-load operation. The unit includes an integrated ESS feature and a water-cooled valve plate to maintain system stability.

Installation and maintenance guidance

For successful installation, technicians should verify that the drive gear, mounting flange, and all port locations—including the Ø29 air inlet and M26x1,5 outlet—match the existing setup exactly. It is essential to confirm that the water cooling connections and unloader port (M22x1,5) are compatible with the vehicle's existing plumbing to prevent leaks or pressure drops.

Troubleshooting and system checks

Regular inspection of the cooling lines and air ports is recommended to ensure optimal performance. If air pressure delivery fluctuates, check the valve plate and cooling efficiency to prevent premature wear in the braking system. Consult your authorized distributor.

OE cross-reference

1300 050 006 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 8112851SP1.