Problem: The original equipment oil cooler adapter relies on a metal gasket on the oil cooler that over time is prone to leaking as the cooler flexes.
Fix: The Fleece Performance oil cooler adapter utilizes an integral square cut seal ring on the oil cooler mating surface in place of the leak prone gasket to provide a superior seal. Slotted mounting holes on one end allow for easier installation.
Fits:
- 2001 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
- 2002 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
- 2003 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
- 2004 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
- 2004.5 GM Silverado/Sierra 2500/3500 6.6L LLY Duramax
- 2005 GM Silverado/Sierra 2500/3500 6.6L LLY Duramax
- 2006 GM Silverado/Sierra 2500/3500 6.6L LBZ Duramax
- 2007 GM Silverado/Sierra 2500/3500 6.6L LBZ Duramax (classic body style)
- 2011 GM Silverado/Sierra 2500/3500 6.6L LML Duramax
- 2012 GM Silverado/Sierra 2500/3500 6.6L LML Duramax
- 2013 GM Silverado/Sierra 2500/3500 6.6L LML Duramax
- 2014 GM Silverado/Sierra 2500/3500 6.6L LML Duramax
- 2015 GM Silverado/Sierra 2500/3500 6.6L LML Duramax
- 2016 GM Silverado/Sierra 2500/3500 6.6L LML Duramax
***Not compatible with 2007.5-2010 LMM or 2017+ L5P Duramax***
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