7000 921 500 Cylinder Liner Set for Volvo FH and Mack Granite

What does a compressor cylinder liner set do?

This compressor cylinder liner set is a critical service component used to restore the cylinder bore in which the piston travels inside heavy-duty air brake compressors. By providing a fresh, precise surface for the piston rings, this set helps eliminate air leakage and pressure loss without requiring the replacement of the entire compressor housing.

Compatible vehicles and engines

This component is specifically engineered for fitment in various heavy commercial vehicle applications. It is compatible with Volvo models such as FH16, FM13, FH13, VNL, and FM11, as well as Mack Granite and Pinnacle trucks. Additionally, it serves Renault Trucks models including Kerax, Magnum, and Premium. These liners are also fitted to Scania and Otokar vehicles.

Installation and maintenance

When installing this liner set, technicians should ensure all surfaces are free of debris to maintain a perfect seal. Proper alignment during assembly is vital to prevent uneven wear on the piston rings. For optimal performance in Knorr-Bremse or Deutz systems, always refer to the specific service manual for torque specifications.

Troubleshooting and selection

Regular inspection of the cylinder walls can help identify early signs of wear before they lead to significant pressure drops in the pneumatic system.