489.03.0013 Volvo Injector Sleeve Compatible

What does an injector sleeve do?

This cylinder head injector sleeve acts as a dry housing tube fitted into the cylinder head to separate the injector from the coolant passages in diesel engines. It keeps the injector on the correct axis and at a fixed depth, while maintaining the seal between the combustion chamber and the water jacket. By conducting heat from the injector to the coolant, it also acts as a vital thermal bridge.

Compatible vehicles and engines

This component is compatible with several Volvo engine families, including D12, D13, and D16 series, as well as D10 and D11 engines. It is widely used in heavy commercial vehicle applications such as Volvo FH, FM, VNL, and VHD trucks, as well as various bus models like the B11R and B13R. Verifying your specific engine code is recommended to ensure perfect fitment.

Installation and maintenance

During installation, technicians should ensure that the cylinder head bore is clean and free of debris. Because this sleeve maintains the seal between the combustion chamber and the water jacket, it is often replaced alongside other sealing elements during injector maintenance to prevent coolant contamination or combustion gas leaks.

Troubleshooting and replacement

Maintaining proper thermal conductivity through this sleeve is essential for preventing injector overheating and ensuring stable combustion cycles in heavy-duty diesel engines.

OE cross-reference

489.03.0013 (Cylinder Head Injector Sleeve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20903104.