2011-2016 Duramax CP4 Fuel Injection Pump (12661059)

Fits

The CP4 pump pressurizes and propels diesel fuel into your Duramax engine's internal combustion chamber through the fuel injectors.

While the previous models (2001-2010) relied on the stable yet inefficient CP3 pump, the CP4 is a powerhouse that packs high pressure with less volume for maximum efficiency and cost-effectiveness. 

Even though it's more efficient, the CP4 platform has some erosion problems that can send metal debris through your fuel system. Accumulation of this debris will eventually cause a total breakdown and expensive repairs.

Part Number: 12661059

• Maximum Efficiency
• No Core Charge
• High-Quality

Parts Only

• 1-Year Warranty