Injector Return Fitting
2011 - 2016 6.6L Duramax
Note: This listing is for (1) Fitting, (1) Foot of hose, and clamps. Three fittings are shown above. You will need to select the fitting you need from the options below when purchasing.

Were you replacing an injector and accidentally broke a fuel injector return line connector? It is very easy to do as they are plastic and when they get full of grit and grime can be very challenging to release. In the past, your only option was to buy the complete fuel return hose assembly which runs over $150 from GM - not to mention that it is quite a task to install!
Save well over $100 and several hours with our replacement return connector! We include one foot of high-quality self-sealing braided rubber return line.
- Very carefully remove the hose from the return connectors on either side of the broken connector. An extremely sharp knife will allow you to cut the hose and remove it without damaging or breaking the connector the hose is being removed from. A Dremel type tool with a cutting disc may also be employed with extreme caution to prevent damaging the fitting.
-Pull the locking sleeve up on the new return fitting and push the fitting into place on the injector (a drop of clean oil will help it slide on freely.) Push down on the locking sleeve to secure the fitting in position.
- Cut the return hose to length and very carefully push it into place on each of the connection points. Use slow steady pressure in a straight line to prevent breaking the return fittings. If necessary a drop of clean engine oil will help the hose slide into place more easily.

- For extra assurance of secure connections (4) heavy duty USA Made hose clamps are included which can be installed as desired.

- Start the engine and check for any leaks
(Please note that Duramax cylinder numbering is Driver's side 2,4,6,8 front to back and Passenger's side 1,3,5,7 front to back.)
Item #: ST60.151/
Availability: In Stock
Usually ships In 1 business day
Price: $22.95
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