CAT Oil Filter Adapter & CAT 1R-1807 Filter for 2001-2019 6.6l Duramax Chevy GMC

Note the drain plug option will not fit 2017+ L5P enginesInstall instructions:1. Do so at your own risk.2. Clean threads on the GM oil cooler housing & on the adapter nipple. Install the KBDP adapter nipple with a ½” drive ratchet.

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