The Story
With the release of the LML Duramax in 2011, GM made the switch from the reputable CP3 injection pump to the lower output CP4 pump. We've seen numerous failures of the CP4 on stock trucks. Fleece Performance has this complete conversion kit that delivers everything you need to swap out your failure prone CP4 to a dependable CP3, including the CP3 pump. But wait, that's fine for a stock build but you want more power? Here's where the Fleece Heavy Duty CP3 featuring a 10mm displacement cam comes into play! The pump itself is built out of a brand new LBZ/LMM Bosch CP3 and upgraded with Fleece's exclusive 10mm stroker cam along with all of the hardware you need to convert your CP4 equipped Duramax to a reliable CP3.
Description
With the release of the LML Duramax in 2011, GM made the switch from the reputable CP3 injection pump to the lower output CP4 pump. We've seen numerous failures of the CP4 on stock trucks. Fleece Performance has this complete conversion kit that delivers everything you need to swap out your failure prone CP4 to a dependable CP3, including the CP3 pump. But wait, that's fine for a stock build but you want more power? Here's where the Fleece Heavy Duty CP3 featuring a 10mm displacement cam comes into play! The pump itself is built out of a brand new LBZ/LMM Bosch CP3 and upgraded with Fleece's exclusive 10mm stroker cam along with all of the hardware you need to convert your CP4 equipped Duramax to a reliable CP3.
