20770303 SP1 Volvo B13R D13B 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 compressed air pressure required for safe vehicle operation. Engineered with high-strength components, it ensures consistent performance under heavy-duty service conditions through its efficient water-cooled design.

Compatibility and engine fitment

This specific unit is compatible with Volvo B13R trucks equipped with D13B engines. It features a Ø85.00 mm cylinder bore, a 56 mm stroke, and a 636cm³ swept volume. The configuration includes an air inlet port of Ø35, an air outlet port of M26x1,5, and M16x1,5 ports for water inlet, water outlet, and the air unloader.

Installation and maintenance guidance

For proper installation, technicians should verify that the through-drive mechanism and all port dimensions match the existing engine configuration exactly. It is essential to ensure that the water cooling lines are free of obstructions to maintain optimal operating temperatures during continuous use.

Replacement and troubleshooting

When replacing a unit, always confirm that the new component's technical specifications align with the original engine requirements to prevent system pressure fluctuations or leaks.

OE cross-reference

1300 190 009 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20770303SP1.