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CP3 Conversion Kit with re-calibrated Pump, 2011-2016

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The CP4 was introduced as a cost reduction to the LML platform since a smaller amount of fuel is required when running the more efficient injectors. Since its introduction it has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms.

No Tuning Required
CP3 is already re-calibrated to match the LML stock CP4 fuel curve
Kit is designed to replace the less reliable CP4 that comes stock on the LML


2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel:
2011, 2012, 2013, 2014, 2015, 2016

Ratings & Reviews

1 Review

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CP3 conversion kit

Dustin - | 09/19/2019 12:01:00 pm

Great upgrade everything went smooth, truck runs smoother than before and I have piece of mind. If you haven’t done this to your LML Duramax yet you should