A common failure point on the L5P Duramax, our replacement connector with 4.5 inch pigtail for the fuel injectors will get you back on the road quickly. This connector is typically replaced during an injector replacement and is prone to increased resistance over time...

Problem: The original equipment oil cooler adapter relies on a metal gasket on the oil cooler that over time is prone to leaking as the cooler flexes. Fix: The Fleece Performance oil cooler adapter utilizes an integral square cut seal ring on the oil...

Freedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and money with no more injector cups to install, leak, or worry about. Each cylinder head is assembled from a new casting in our state-of-the-art Freedom...

Freedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and money with no more injector cups to install, leak, or worry about. Each cylinder head is assembled from a new casting in our state-of-the-art Freedom...

Replacement high pressure fuel line for 6.6L LML Duramax's with CP3 conversion kits. Features: Replacement High Pressure Fuel Line for LML CP3 Conversions Engine Manufacturer: Duramax Engine Designation: LML Finish: Raw Sold As: Each Fitment: 2011-2016 GM Silverado/Sierra 2500/3500 6.6L LML Duramax Direct replacement...

Replacement connector with 4.5 inch pigtail for use in multiple locations on the Duramax, Ram with Cummins, and other GM vehicles. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimping to ensure you get the highest quality replacement parts you...

Make turbo installations easier and ensure good oil supply to your turbocharger with our remote oil feed line! Problem: The factory turbo oil feed used on the 2001-2016 Duramax's is supplied off of the number 4 cam journal bearing, which can be restrictive, or...

Replace your leaking transmission lines with our heavy duty, high flow, flexible transmission lines. Our kit is the most complete replacement transmission line kit available for your LML truck! With an increased diameter over stock and heavy duty hose wrap, these lines will increase...

Regulator extension harness for use with Bosch CP3's used in 6.6L Duramax applications. Additional Attributes Country Of Origin: USA Universal: No Vehicle Type: Truck/SUV Sold As: Each Engine Manufacturer: Duramax Engine Year: 2011-2016

Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing the injectors. If you are changing your injectors, have a line failure, or are looking to upgrade your stock lines, we've got you covered with our direct...

Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing the injectors. If you are changing your injectors, have a line failure, or are looking to upgrade your stock lines, we've got you covered with our direct...

Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing the injectors. If you are changing your injectors, have a line failure, or are looking to upgrade your stock lines, we've got you covered with our direct...

Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing the injectors. If you are changing your injectors, have a line failure, or are looking to upgrade your stock lines, we've got you covered with our direct...

Problem: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fuel tank to accommodate a sump. Each of these has some pretty significant drawbacks including the ?...

Problem: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fuel tank to accommodate a sump. Each of these has some pretty significant drawbacks including the ?...

Problem: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fuel tank to accommodate a sump. Each of these has some pretty significant drawbacks including the ?...

Make installation and removal of the dosing injector fuel line on 2011-2016 LML Duramax engines a breeze with our fuel line disconnect tool. Fits: 2011-2016 Duramax Vehicle Fitments GMC Sierra 2500 HD 2011 to 2016 GMC Sierra 3500 HD 2011 to 2016 Chevrolet Silverado...

The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, often necessary when diagnosing CP4 pump failures. When installed in the return fuel system, it allows for a pressure gauge to be...

Replacement CP3 fuel feed hose for the Fleece Performance LML CP3 Conversion Kits. Fits all prior and current models. Vehicle Fitments GMC Sierra 2500 HD 2011 to 2016 GMC Sierra 3500 HD 2011 to 2016 Chevrolet Silverado 2500 HD 2011 to 2016 Chevrolet Silverado...

Replacement CP3 fuel return hose for the Fleece Performance LML CP3 Conversion Kits. Fits all prior and current models. Vehicle Fitments GMC Sierra 2500 HD 2011 to 2016 GMC Sierra 3500 HD 2011 to 2016 Chevrolet Silverado 2500 HD 2011 to 2016 Chevrolet Silverado...

The Donaldson P553203 Fuel Filter is a direct replacement filter for the Fleece L5P Duramax Fuel Filter Kits and 1998.5-2018 Dodge Ram Cummins Auxiliary Fuel Filter Kits. The filter is rated at 3 microns. This case quantity includes 12 filters. Fitment: FPE-L5P-FFBA-1719 FPE-L5P-FFBA-1920 FPE-34783...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...