8157550 SP1 Volvo Compatible Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor is an essential engine-driven component designed to provide consistent air pressure for heavy commercial vehicle braking systems. By utilizing two piston-cylinder assemblies, this unit delivers high air output to ensure reservoirs are filled efficiently, even under high demand. The water-cooled design maintains thermal stability during long hauls, ensuring the component operates within optimal temperature ranges to prevent premature wear.

Compatibility and technical specifications

This specific unit is designed for use in Volvo FL12 trucks equipped with TD123 engines. It features a Ø88.00 mm cylinder bore, a 50 mm stroke, and a 608cm³ swept volume. The assembly includes an integrated ESS feature and a water-cooled valve plate to enhance durability under heavy-duty operating conditions. It is compatible with Volvo OE specifications.

Installation and maintenance guidance

For professional installation, technicians should verify the water inlet and outlet port connections (M16x1,5) and ensure the drive gear interface matches the engine requirements. Given the precision of the M26x1,5 air outlet and M22x1,5 unloader port, verifying these dimensions against the removed unit is critical for a successful fitment. Always consult your authorized distributor.

Selection and replacement tips

When replacing an existing unit, ensure that the cooling circuit is free of debris and that all ports are sealed correctly to maintain system integrity.

OE cross-reference

1300 050 006 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 8157550SP1.