20774294 SP2 Air Compressor Compatible with Volvo VNL

What does a twin cylinder compressor do?

This twin cylinder air compressor is a critical component within the pneumatic braking system, responsible for providing consistent compressed air to the vehicle's braking and suspension components. Engineered with heavy-duty grade materials, it ensures reliable operation under high-pressure conditions typical in heavy commercial vehicle applications.

Compatibility with Volvo VNL engines

This specific unit is designed for use in Volvo VNL trucks equipped with D13 engines. It features a water-cooled design with a Ø85.00 mm cylinder bore and a 56 mm stroke, providing a swept volume of 636cm³. The unit is equipped with an ESS feature and a water-cooled valve plate to maintain optimal thermal management during operation.

Technical specifications and installation

For proper installation, technicians should verify that the water inlet and outlet ports (M16x1.5) and the air outlet port (M26x1.5) match the existing system configuration. Ensuring the through drive and mounting flange alignment is correct during installation is vital for preventing premature wear of the internal components.

Maintenance and system checks

Regular inspection of the air inlet port (Ø35) and unloader port (M16x1.5) is recommended to prevent contaminants from entering the cylinder assembly, which maintains the long-term integrity of the air brake system.

OE cross-reference

1300 190 004 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20774294SP2.