GM LML Duramax Factory Fuel Replacement System Kit

This fuel system replacement kit includes a new CP4 fuel injection pump, fuel rails, fuel injectors, all of your hard fuels lines, all rubber fuel lines, and all of the gaskets and seals needed to complete the install. This kit requires no tuning and is EPA approved. This kit is designed to be a direct replacement for CP4 equipped 2011-2016 Duramax Diesel trucks.

The CP4 fuel injection pump in 11-16 Duramax trucks suffer high pressure fuel pump issues due to lack of lubrication. The CP4 was designed to be a more efficient pump than its predecessor the CP3 pump. The CP4 proved to be less reliable than the CP3. An LML CP4 pump failure will present itself with a hard start or no start condition and can result in the following trouble codes: P0087, P0088, P0191, or P128E.

• CP4 Pump
• Fuel rails
• Fuel injectors
• Fuel lines
• Filter Head Kit
• All Gaskets & Seals