V6 Fuel Injector Return O-Ring OM642

This tiny o-ring goes on top of the injector fuel return spout. It's so small that it is very difficuilt to see with the naked eye, but it serves a very important purpose. It seals the injector fuel return spout to the leak off line fitting (also available on MMS). With age, these can get brittle and crack or they also can get damaged when the return line is removed and replaced. A damaged or broken o-ring results in a fuel leak. We higly recommend ordering 6 of these and replacing them all at one time to ensure proper sealing for years to come. 
For the OM642 V6 engine ONLY
*This listing is for ONE o-ring*