20429339 SP1 Compatible Twin Cylinder Compressor for Volvo

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component within the air brake system of heavy commercial vehicles, utilizing two piston-cylinder assemblies to generate pressurized air. By producing two compression strokes per crankshaft revolution, this unit delivers a higher air output than single-cylinder types, ensuring pneumatic reservoirs are filled more efficiently under heavy load.

Vehicle and engine compatibility

Specifically engineered for Volvo B12 engines with D12A specifications, this unit is compatible with Volvo vehicle applications. It features a water-cooled design to manage thermal loads during continuous operation, ensuring long-term reliability in demanding environments. The unit includes an ESS feature and a water-cooled valve plate for optimized thermal management.

Installation and technical specifications

For correct installation, technicians should verify the M26x1.5 air outlet port and M16x1.5 water inlet/outlet ports match the existing vehicle configuration. Given the 23 KG weight and specific Ø29 air inlet port, ensure all mounting interfaces and drive gear requirements are aligned with the engine's specifications to prevent system leaks or mechanical failure.

Maintenance and selection guidance

When replacing this component, it is vital to match the technical specifications such as the 50 mm stroke and swept volume to the original equipment to maintain proper system pressure.

OE cross-reference

1300 050 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20429339SP1.