20773343 SP1 Volvo B9L D9B Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor plays a critical role in the pneumatic braking system by providing a consistent and high-volume air supply to the vehicle's air tanks. Designed with heavy-duty grade materials, this unit is specifically engineered to maintain thermal stability through its water-cooled architecture, preventing overheating during sustained operation in demanding environments.

Compatibility with Volvo B9L

This component is designed for use in Volvo B9L trucks equipped with D9B engines. It features a through-drive configuration and is compatible with the specific cooling requirements of these high-capacity engines. Always verify that the mounting flange and port locations match the original equipment to ensure a seamless installation.

Installation and maintenance

For proper maintenance, technicians should inspect the water inlet and outlet ports (M16x1,5) and the air outlet port (M26x1,5) for any signs of scale or debris. Ensuring the water cooling circuit remains clear is vital for preserving the integrity of the internal components and maintaining optimal swept volume performance.

Selection guidance

Consult your authorized distributor to confirm exact fitment for your specific engine variant.

OE cross-reference

1300 180 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20773343SP1.