Maintain peak rail pressure and safeguard your engine with premium 2011–2016 GM 6.6L LML Duramax Injection Pumps. The high-pressure fuel pump is the heart of your LML's fuel system, responsible for generating the intense pressures required for clean, efficient combustion. Unfortunately, the factory CP4 pump is notoriously prone to internal failure, which can contaminate the entire fuel system with metal debris and lead to thousands of dollars in repairs. Whether you are replacing a failed unit with a reliable OEM Bosch CP4, or proactively upgrading to a CP3 conversion kit to permanently eliminate the risk of catastrophic pump failure, we have the hardware you need.
Our collection features factory-new high-pressure injection pumps, premium remanufactured units, and complete conversion systems engineered to handle everything from stock daily driving to heavy towing and high-performance racing. Protect your injectors, restore your truck’s throttle response, and build a bulletproof fuel setup by upgrading your LML injection pump today.
