Duramax Injector Return Line Kit
Model year 2004.5-2010
For use in LLY, LBZ and LMM applications. NOT for use in LB7 applications.
The DT660023 kit can be used in place of GM kits 97328733 and 98062291. The GM kits are specific to either the right or left side of the engine while the DT660023 kit can be used with the injectors on either side.
The kits includes the return adapters and o-rings, adapter retaining clips, and a length of return line hose sufficient for either engine side.