22306613 Volvo FM9 Connecting Rod & Piston

What does a connecting rod and piston do?

The connecting rod and piston assembly serves as the core of the air brake compressor's compression mechanism. The piston compresses the air within the cylinder to generate necessary pressure for the brake reservoirs, while the connecting rod transmits the crankshaft's rotary motion to the piston. These high-strength components directly influence the compressor's air output, oil consumption, and overall running noise.

Vehicle compatibility and fitment

This specific assembly is designed for Volvo FM9 trucks, including models FM 9/260, FM 9/300, FM 9/340, and FM 9/380. It is engineered to withstand the intense thermal and mechanical stresses found in heavy commercial vehicle pneumatic systems.

Maintenance and overhaul guidance

When performing an overhaul, technicians often recommend renewing the piston and rings together to ensure a perfect seal. Regular inspection of these parts can prevent sudden drops in air pressure or excessive oil consumption within the compressor system. Consult your authorized distributor for installation guidance.

System reliability

Maintaining these components helps ensure the reliability of the entire pneumatic braking system across various heavy-duty applications.

OE cross-reference

8000 850 005 (Compressor Connecting Rod & Piston) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 22306613.