Fuel System
Fleece SureFlo® Performance Sending Unit – Long Bed (FPE-SF-GM-1116-LB) for 2011–2016 Duramax LML
The Fleece SureFlo Sending Unit for 2011–2016 Duramax LML long bed trucks provides a clean and reliable solution for running aftermarket lift pumps without modifying the fuel tank. Designed to install directly in the factory sending unit location, the Fleece SureFlo Sending Unit eliminates the need for draw straws or drilling the tank while helping prevent the common ¼ tank fuel starvation problem. If you’re upgrading the fuel system on a Duramax diesel truck, this solution provides a professional installation while maintaining reliable fuel delivery.
Fleece SureFlo® Performance Sending Unit – Short Bed (FPE-SF-GM-1116-SB) for 2011–2016 Duramax LML
The Fleece SureFlo Sending Unit FPE-SF-GM-1116-SB is designed for 2011–2016 Duramax LML short bed trucks running aftermarket lift pumps. The Fleece SureFlo Sending Unit installs directly into the factory sending unit location, eliminating the need for draw straws or drilling the fuel tank for a sump. By drawing fuel directly from the bucket assembly, it helps prevent the common ¼ tank fuel starvation issue and keeps your lift pump supplied with fuel. The Fleece SureFlo Sending Unit FPE-SF-GM-1116-SB also features OEM-style connections and –8 AN ports, making it ideal for both stock fuel lines and custom fuel system setups. This design provides a clean, reliable fuel delivery solution for Duramax owners upgrading their fuel system.
Fleece Dosing Injector Fuel Line Disconnect Tool (FPE-LML-QCDT) for 2011-2016 Duramax LML
The Fleece Dosing Injector Fuel Line Disconnect Tool (FPE-LML-QCDT) is a precision tool designed for 2011–2016 GM Duramax LML diesel engines. It simplifies the removal of the fuel line to the dosing injector, a typically difficult task, by providing a secure and efficient disconnect. Ideal for both technicians and DIY users, it aids in servicing or diagnosing components in the exhaust aftertreatment system.
Fleece 18″ Rail Pressure Sensor Extension Harness (FPE-HAR-RP-EXT) for 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML& 2003-2012 Cummins 5.9L / 6.7L
The Fleece 18″ Rail Pressure Sensor Extension Harness (FPE-HAR-RP-EXT) is a plug-and-play aftermarket solution for 2001–2016 Duramax and 2003–2012 Cummins engines. It provides an 18-inch extension for easier relocation of the rail pressure sensor during custom builds or fuel system upgrades. Built to OEM specs, it ensures a secure, reliable connection without the need for wire cutting or splicing.
Fleece Donaldson P553203 Fuel Filters – 12 Pack (FPE-DON-P553203-12) for 1998.5-2018 Cummins 5.9L / 6.7L & 2011-2024 Duramax LML / L5P
The Fleece Donaldson P553203 Fuel Filters (12-Pack) provide high-quality filtration for diesel trucks, compatible with 1998.5–2018 Cummins 5.9L/6.7L and 2011–2024 Duramax LML/L5P engines. Manufactured by Donaldson and distributed by Fleece Performance, these filters meet or exceed OEM standards, ensuring engine protection, fuel system integrity, and long-term reliability. Ideal for fleet maintenance or extended use, the 12-pack offers excellent value and convenience.
Fleece Auxiliary Heated Fuel Filter Kit (FPE-DMAX-HFFBA-1116) for 2011-2016 Duramax LML
The Fleece Auxiliary Heated Fuel Filter Kit (FPE-DMAX-HFFBA-1116) is an upgrade for 2011–2016 GM Duramax LML diesel engines that improves fuel system reliability, especially in cold weather. It features a high-quality auxiliary fuel filter with a built-in heating element to prevent fuel gelling, while also removing contaminants and water. Designed for durability and easy plug-and-play installation, it enhances engine protection and extends fuel system life.
Fleece CP3 Adapter (FPE-DMAX-CP3-ADPT) for 2001-2016 Duramax 6.6L LB7/ LLY / LBZ / LMM / LML
The Fleece CP3 Adapter (FPE-DMAX-CP3-ADPT) is a precision-engineered component for 2001–2016 GM Duramax 6.6L diesel engines. It enables the replacement of the less reliable factory CP4 fuel pump with a more dependable CP3 pump, particularly beneficial for LML models. Designed for durability and proper fitment, the adapter enhances fuel system reliability and performance, making it ideal for high-horsepower or heavy-duty use.
Fleece Performance Bosch CP3 (FPE-DMAX-CP3) for 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML
The Fleece Performance Bosch CP3 (FPE-DMAX-CP3) is a durable, high-performance replacement fuel injection pump for 2001–2016 GM Duramax diesel engines (LB7, LLY, LBZ, LMM, LML). Known for its reliability and ability to support higher horsepower, it restores proper fuel pressure and flow, making it a preferred upgrade over the less reliable stock CP4 pumps. Ideal for both replacements and performance upgrades, it’s trusted by diesel enthusiasts and professionals.
Fleece 3/8″ CP3 Return Fitting (FPE-CP3-RTRN) for CP3 fuel pumps
The Fleece 3/8″ CP3 Return Fitting (FPE-CP3-RTRN) is a durable, high-quality aftermarket part designed for CP3 fuel pumps. It ensures a secure, leak-free return line connection to support optimal fuel system performance. Compatible with various fuel setups, it’s ideal for performance upgrades or maintenance. Made by Fleece Performance Engineering, it offers easy installation and reliable operation under demanding conditions.
Sinister Diesel Injector Set (set of 8) (SDLMLINJK0120) for 2011-2016 Duramax 6.6L LML
Sinister Diesel remanufactured fuel injectors restore OEM performance for 2011-2016 Chevy/GMC 2500/3500HD trucks with 6.6L Duramax LML engines. They replace worn stock injectors, improving fuel delivery and engine performance at a lower cost than OEM parts. Includes a 2-year warranty.
Sinister Diesel Reman Injector (SDINJGM11) for 2011-2016 GM Duramax LML 6.6L
The Sinister Diesel Stock Reman Injectors are reliable, cost-effective replacements that meet or exceed OEM standards. They restore fuel system performance and offer long-lasting service at a lower price than dealership options. Upgrading the fuel filtration system is recommended when replacing injectors.
Sinister Diesel Cat Fuel Filter Adaptor (SDGCATDMAX) for 2001-2016 Duramax 6.6L
The Sinister Diesel Duramax fuel filter and adapter kit upgrades the factory fuel filter on 2001-2016 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks with a 6.6L Duramax V-8. It includes a Caterpillar 2-micron spin-on fuel filter, improving filtration efficiency, fuel system longevity, and reducing maintenance costs.
Fleece Replacement CP3 fuel return hose for CP3 Conversion Kit (FPE-LML-HS-RTRN) for 2011-2016 Duramax LML
The Fleece Performance Replacement CP3 Fuel Return Hose (FPE-LML-HS-RTRN) is a durable, high-quality hose designed for 2011–2016 GM Duramax LML diesel engines with a CP3 conversion. It ensures a secure, leak-free connection between the CP3 pump and the factory return system, maintaining optimal fuel performance. Built to withstand high-pressure diesel systems, it offers a precise fit and OE-style reliability, making it ideal for CP3 conversions or hose replacements.
Fleece Return Fuel Pressure Test Port (FPE-FPTP-GM-1116) for 2011-2016 Duramax LML
The Fleece Return Fuel Pressure Test Port (FPE-FPTP-GM-1116) is a diagnostic tool for 2011–2016 GM Duramax LML diesel engines that enables accurate monitoring of return fuel pressure. Made by Fleece Performance Engineering, it helps diagnose fuel system issues like injector leaks or line restrictions. Built with high-quality materials for a secure, leak-free fit, it integrates easily into the factory system and is suitable for both professionals and advanced DIY users.
LML CP3 Conversion Kit with Heavy Duty CP3 (FPE-LML-CP3-10) for 2011-2016 LML Duramax
Improve your LML Duramax’s reliability and fueling capability with a CP3 conversion (FPE-LML-CP3-10). Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms. Failures of the CP4 are extremely costly and require replacement of the entire fuel system.
Sinister Diesel CAT Fuel Filter Adapter (SDCATDMAX) for 2001-2016 Duramax 6.6L
The Sinister Diesel Duramax Fuel Filter and Adapter Kit is an upgrade for 2001–2016 Chevy Silverado and GMC Sierra 2500/3500 HD trucks with 6.6L Duramax engines. It replaces the factory fuel filter with a high-performance 2-micron Caterpillar spin-on filter, improving filtration efficiency and capacity. This reduces long-term maintenance costs and extends the life of the fuel system and injectors.
Fleece Rail Pressure Sensor Pigtail (FPE-HAR-RP-PT) for 2001-2016 Duramax LB7 / LLY / LMM & 2003-2012 Cummins 5.9L / 6.7L
The Fleece Rail Pressure Sensor Pigtail (FPE-HAR-RP-PT) is a durable replacement wiring harness for the fuel rail pressure sensor on 2001–2016 Duramax and 2003–2012 Cummins diesel engines. Designed with OE-style connectors and weatherproof seals, it repairs damaged factory connectors to restore proper sensor-to-ECU communication, ensuring reliable fuel system performance in tough conditions.
Fleece Replacement CP3 fuel feed hose for CP3 Conversion Kit (FPE-LML-HS-FEED ) for 2011-2016 Duramax LML
The Fleece Replacement CP3 Fuel Feed Hose (FPE-LML-HS-FEED) is a durable, high-performance hose designed for 2011–2016 Duramax LML engines undergoing a CP3 conversion. It replaces the stock fuel hose to ensure reliable fuel delivery to the CP3 injection pump, supporting improved engine performance and reliability in high-demand diesel applications.
BD Diesel Venom CP3 Conversion Kit c/w Standard Pump (1050496) for 2011-2016 Duramax 6.6L
The BD Diesel Venom CP3 Conversion Kit (1050496) is a performance upgrade for 2011–2016 GM Duramax 6.6L engines, replacing the less reliable CP4.2 fuel pump with a more durable CP3 pump. Designed for easy, direct-fit installation, the kit includes all necessary components and hardware. It improves fuel flow and pressure, boosting engine performance and reliability, especially in tuned or modified vehicles. Ideal for diesel enthusiasts, it offers enhanced durability and peace of mind from BD Diesel Performance.
Fleece CP3 Conversion Hardware Kit – No Pump (FPE-LML-CP3-NP) for 2011-2016 Duramax LML
The Fleece CP3 Conversion Hardware Kit – No Pump (FPE-LML-CP3-NP) is designed for 2011-2016 GM Duramax LML engines to replace the unreliable factory CP4 injection pump with a more durable CP3 pump (not included). This upgrade enhances fuel system reliability and performance. The kit includes all necessary hardware for easy installation and is ideal for Duramax owners seeking improved dependability without sacrificing power or efficiency.
FASS Fuel Systems Replacement Element 32283 For FASS Titanium Electric Heater
The FASS Fuel Systems Replacement Element 32283 is an essential component for maintaining the efficiency and performance of your FASS Titanium Electric Heater. This replacement element is designed to filter out any impurities or contaminants in your fuel, ensuring that only clean, high-quality fuel is delivered to your engine. With its advanced technology and high-quality materials, this replacement element is built to last and can handle even the most extreme conditions. By regularly replacing the element, you can prolong the life of your FASS Titanium Electric Heater and ensure that your engine is receiving the best fuel possible for optimum performance.
Fleece PowerFlo® 750 CP3 (FPE-DMAX-CP3-10MM) for 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML
The Fleece Performance PowerFlo 750 CP3 for the GM Duramax is a straight forward, no inflated numbers, CP3 upgrade proven to support 750 RWHP with the proper complimenting modifications. Not only will it support 750 RWHP, but it also eliminates the factory fuel flow restiction that begins at 3,000 RPM.
Fleece Duramax CP3K (FPE-DMAX-CP3K) for 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML
The Fleece Performance (FPE-DMAX-CP3K) is a high-performance CP3 pump upgrade for 2001–2016 GM Duramax diesel engines. It increases fuel flow to support mild to moderate performance upgrades without compromising reliability or requiring major modifications. As a direct factory replacement, it maintains all stock fuel control systems for smooth drivability, making it ideal for towing or enhanced street and track performance.
FASS Titanium Signature Series 100GPH Fuel System Stock-600hp (TSC12100G) for 2015-2016 Duramax LML 6.6L
The FASS Titanium Signature Series Diesel Fuel System 100GPH (8-10 PSI) TSC12100G is a high-performance upgrade for the GM/Chevy Duramax 6.6L engine for the 2015-2016 models. This fuel system is designed to provide a flow rate of 100 gallons per hour and maintain a consistent pressure of 8-10 PSI, making it ideal for stock to 600 horsepower applications. The system is built with durable and high-quality materials, including a titanium signature series pump and a motor that is capable of handling high-pressure fueling demands. With its advanced filtration and air separation technology, the FASS system ensures clean and pure fuel is delivered to the engine, resulting in improved performance, increased fuel efficiency, and extended engine life. This is the perfect upgrade for Duramax owners looking to enhance the power and efficiency of their vehicle.
