2017-2019 Duramax L5P Oil Fill Extension Tube - OEM AC Delco

Tired of making a mess when adding engine oil to your L5P Duramax? This OEM AC Delco extension tube is a nice and simple upgrade to make adding oil a lot easier now for the 17-19 Duramax L5P 6.6L Silverado / Sierra 2500/3500HD. You can still use a traditional funnel with this and not have to worry about it spilling!

We have found that using the traditional oil cap with this configuration will interfere with the hood insulation, so we've come up with an ultra slim oil cap (Shown in the last two photos)! This is an optional cap to be selected in the drop-down menu, and we highly suggest getting to eliminate any clearance issues. The optional cap includes a brand-new sealing oring as well!

Have the tube already and want just the cap? We sell that HERE