3094155 Volvo F12 TD122 Compressor Ring

What does a compressor ring do?

This compressor ring plays a critical role in maintaining the sealing integrity within the air brake compressor piston assembly. By ensuring a proper seal against the cylinder wall, it facilitates the necessary compression required for the pneumatic braking system of heavy commercial vehicles. These rings are manufactured from high-strength components to withstand the intense thermal and pressure fluctuations found in heavy-duty environments.

Compatibility and fitment

This specific component is designed for use in Volvo F12 trucks equipped with TD122 engines. It serves as an essential replacement part during compressor overhauls to restore optimal air production. The ring dimensions are measured by nominal diameter, thickness, and height to ensure exact fitment within the piston grooves.

Installation and maintenance

For successful installation, technicians should verify that the ring thickness matches the groove height to prevent rattling or binding. During maintenance, it is recommended to inspect the cylinder liner for wear; if the liner has been rebored, an oversize ring set must be used instead of this standard version. Always consult the vehicle manufacturer's service manual for specific end-gap clearance requirements.

Selection guidance

Consult your authorized distributor to ensure this part meets the specific requirements of your engine configuration.

OE cross-reference

752 200 (Compressor Ring) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 3094155.