Duramax: 2019-2026 (3.0L)

Duramax: 2001-2004 (LB7)

Duramax: 2004.5-2005 (LLY)

Duramax: 2006-2007 (LBZ)

Duramax: 2007.5-2010 (LMM)

Duramax: 2011-2016 (LML)

Duramax: 2017-2019 (L5P)

Duramax: 2020-2025 (L5P)

Fleece #1 and #8 high pressure injection line (FPE-FL-LB7-18) for 2001-2004 Duramax LB7

SKU: FPE-FL-LB7-18
$76.06

The Fleece Performance Fleece #1 and #8 High Pressure Injection Line (FPE-FL-LB7-18) is a durable, precision-engineered replacement for the factory high-pressure fuel lines on 2001–2004 GM Duramax LB7 diesel engines. Designed to connect the fuel rail to injectors #1 and #8, it addresses issues like corrosion and leaks common in OEM lines. Ideal for injector replacements or fuel system maintenance, this component helps maintain reliable fuel delivery and engine performance.

 

  • Replaces GM Part# 97188720

Fleece High Pressure Injection Line Kit (FPE-FL-DMAX-LLY-SET) for 2004.5-2005 Duramax LLY

SKU: FPE-FL-DMAX-LLY-SET
$539.12

The Fleece High Pressure Injection Line Kit (FPE-FL-DMAX-LLY-SET) is a high-quality replacement designed for 2004.5–2005 GM 6.6L Duramax LLY diesel engines. It includes OEM-style fuel lines that connect the fuel rails to the injectors, offering durability, leak prevention, and reliable performance under high pressure. Suitable for both stock and modified setups, this kit is an ideal upgrade or replacement for factory lines to maintain consistent engine performance.

 

Replaces GM Part# 97378825 (qty 2)

Replaces GM Part# 97378828 (qty 2)

Replaces GM Part# 97378826 (qty 2)

Replaces GM Part# 97378827 (qty 2)

 

Fleece High Pressure Injection Line Kit (1 Year Limited Parts Warranty) for 2006-2010 Duramax LLY / LBZ

SKU: FPE-FL-DMAX-LBZLMM-SET
$627.32

The Fleece High Pressure Injection Line Kit is a high-quality aftermarket upgrade for 2006–2010 GM Duramax LLY and LBZ diesel engines. It replaces factory fuel lines with durable, corrosion-resistant components to ensure consistent fuel delivery and maintain optimal injection pressure. Designed for high-performance or heavily used trucks, the kit enhances fuel system reliability and comes with a 1-year limited parts warranty.

 

Replaces GM Part # 98006523 (qty 2)

Replaces GM Part # 98006527 (qty 2)

Replaces GM Part # 98006524 (qty 2)

Replaces GM Part # 98006526 (qty 2)

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

SKU: FPE-DON-P553203-12
$293.99

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 Oil Cooler Adapter O-ring Kit (FPE-DMAX-OCADPT-ORING-KIT) for 2001-2016 Duramax LB7 / LLY / LBZ / LML

SKU: FPE-DMAX-OCADPT-ORING-KIT
$9.91

The Fleece Oil Cooler Adapter O-ring Kit (FPE-DMAX-OCADPT-ORING-KIT) is a durable, OEM-compatible replacement kit by Fleece Performance Engineering, designed for 2001–2016 GM Duramax diesel engines (LB7, LLY, LBZ, LML). It includes all necessary O-rings to reseal the oil cooler adapter, helping prevent oil leaks and maintain engine performance—ideal for routine maintenance or oil cooler servicing.

Fleece Performance Billet Oil Cap Red (FPE-DMAX-OC-RED) for 2001-2016 Duramax LB7 / LLY / LBZ

SKU: FPE-DMAX-OC-RED
$44.08

The Fleece Performance Billet Oil Cap Red (FPE-DMAX-OC-RED) is a high-quality aftermarket upgrade for 2001–2016 GM Duramax diesel engines (LB7, LLY, LBZ). Made from durable billet aluminum with a red anodized finish, it offers a secure fit, corrosion resistance, and enhanced engine bay aesthetics—combining style and function for Duramax owners.

Fleece Performance Billet Oil Cap Blue (FPE-DMAX-OC-BLU) for 2001-2016 Duramax LB7 / LLY / LBZ

SKU: FPE-DMAX-OC-BLU
$44.08

The Fleece Performance Billet Oil Cap Blue (FPE-DMAX-OC-BLU) is a durable, anodized aluminum upgrade for 2001–2016 GM Duramax diesel engines (LB7, LLY, LBZ). It offers a secure, leak-free seal and enhances engine bay aesthetics with its vibrant blue finish. Designed for a precise fit, it replaces the factory cap with a corrosion-resistant, high-performance alternative ideal for diesel enthusiasts seeking improved function and style.

Fleece Performance Billet Oil Cap Black (FPE-DMAX-OC-BLK) for 2001-2016 Duramax LB7 / LLY / LBZ

SKU: FPE-DMAX-OC-BLK
$44.08

The Fleece Performance Billet Oil Cap Black (FPE-DMAX-OC-BLK) is a durable, high-quality aluminum replacement for 2001–2016 GM Duramax diesel engines. It features a sleek black anodized finish for corrosion resistance and improved aesthetics. Designed for a perfect fit, it ensures a secure seal to maintain oil pressure and prevent leaks, making it ideal for both performance enthusiasts and daily drivers.

Fleece Auxiliary Heated Fuel Filter Kit (FPE-DMAX-HFFBA-1116) for 2011-2016 Duramax LML

SKU: FPE-DMAX-HFFBA-1116
$439.90

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.

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Fleece CP3 Adapter (FPE-DMAX-CP3-ADPT) for 2001-2016 Duramax 6.6L LB7/ LLY / LBZ / LMM / LML

SKU: FPE-DMAX-CP3-ADPT
$73.49

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

SKU: FPE-DMAX-CP3
$1,410.10

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

SKU: FPE-CP3-RTRN
$17.59

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.

Fleece Rocker Bridges (FPE-BRAB-D1) for 2001-2016 Duramax LP7 / LLY / LBZ / LMM / LML

SKU: FPE-BRAB-D1
$566.50

The Fleece Rocker Bridges (FPE-BRAB-D1) are high-strength, precision components designed for 2001–2016 GM Duramax diesel engines (LB7, LLY, LBZ, LMM, LML). They enhance valvetrain stability and durability, making them ideal for high-performance or heavy-duty applications. Built to OEM specifications, these direct-fit bridges reduce engine wear, maintain proper valve geometry, and are compatible with both factory and aftermarket rocker arms.

Fleece Freedom Series Cylinder Head – Passenger Side (FPE-61-10014-P) for 2017-2023 Duramax L5P

SKU: FPE-61-10014-P
$1,206.45

The Fleece Freedom Series Cylinder Head – Passenger Side (FPE-61-10014-P) is a high-quality, direct-fit replacement for 2017–2023 GM Duramax L5P diesel engines. Designed for durability and performance, it features hardened valve seats, enhanced coolant flow, and upgraded valve guides. Suitable for both stock and modified engines, this fully assembled cylinder head offers improved reliability and efficiency under demanding conditions, making it ideal for rebuilds or performance upgrades.

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Fleece Freedom Series Cylinder Head – Driver Side (FPE-61-10014-D) for 2017-2023 Duramax L5P

SKU: FPE-61-10014-D
$1,206.45

The Fleece Freedom Series Cylinder Head – Driver Side (FPE-61-10014-D) is a high-performance, direct-fit replacement for 2017–2023 GM Duramax L5P diesel engines. Built from premium materials, it exceeds OEM standards, offering enhanced durability, improved coolant flow, and structural strength to support increased horsepower and torque. Suitable for both stock and modified engines, it ensures optimal combustion efficiency and long-term reliability, making it ideal for engine rebuilds or performance upgrades.

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Fleece Tall Stack Cover – 5″ Diameter – Straight Cut (FPE-STK-CVR-5-S) fits 5″ stack

SKU: FPE-STK-CVR-5-S
$48.50

The Fleece Tall Stack Cover (FPE-STK-CVR-5-S) is a durable protective cover designed for 5-inch straight-cut exhaust stacks. It provides a snug, tall fit to shield stacks from debris, moisture, and environmental elements, helping prevent corrosion and blockages. Ideal for trucks and performance vehicles, it helps extend the life of the exhaust system.

Fleece Tall Stack Cover – 6″ Diameter – Straight Cut (FPE-STK-CVR-6-S) fits 6″ stack

SKU: FPE-STK-CVR-6-S
$49.60

The Fleece Tall Stack Cover – 6″ Diameter – Straight Cut (FPE-STK-CVR-6-S) is a high-quality protective cover designed to fit 6-inch exhaust stacks with a straight-cut top. Crafted from durable materials, this cover helps prevent debris, moisture, and unwanted pests from entering the exhaust stack when the vehicle is not in use. Ideal for trucks with vertical exhaust stacks, the Fleece Tall Stack Cover ensures longevity and optimal performance by keeping the system clean and protected. Its snug fit and easy installation make it a practical and essential accessory for maintaining your exhaust system.

Fleece Tall Stack Cover – 6″ Diameter – Miter Cut (FPE-STK-CVR-6-45) fits 6″ stack

SKU: FPE-STK-CVR-6-45
$49.60

The Fleece Tall Stack Cover – 6″ Diameter – Miter Cut (FPE-STK-CVR-6-45) is a durable cover designed to protect 6-inch exhaust stacks. Featuring a 45-degree miter cut for a secure fit, it shields against debris, moisture, and pests when not in use. Made from high-quality materials, it helps maintain exhaust system performance and longevity in all weather conditions, making it a practical choice for truck owners and operators.

Fleece Tall Stack Cover – 5″ Diameter – Miter Cut (FPE-STK-CVR-5-45) fits 5″ stack

SKU: FPE-STK-CVR-5-45
$48.50

The Fleece Tall Stack Cover (FPE-STK-CVR-5-45) is designed for 5-inch diameter exhaust stacks with a miter cut. Made from fleece, it protects stacks from moisture, debris, and pests, helping prevent corrosion and extend system life. Ideal for trucks, generators, and industrial equipment, it offers a snug fit and easy use for effective maintenance.

Fleece Tall Stack Cover – 8″ Diameter – Straight Cut (FPE-STK-CVR-8-S) fits 8″ stack

SKU: FPE-STK-CVR-8-S
$48.50

The Fleece Tall Stack Cover – 8″ Diameter – Straight Cut (FPE-STK-CVR-8-S) is a durable, weather-resistant cover designed for 8-inch exhaust stacks on trucks and heavy-duty vehicles. It provides a secure fit to protect against debris, moisture, and harsh conditions when not in use. Featuring a sleek straight-cut design, it is easy to install and remove, helping to extend the life of exhaust components.

BD Diesel BD-Built Injector StockPlus Premium (1724521) for 2006-2007 Duramax LBZ

SKU: 1724521
$530.20

The BD Diesel BD-Built Injector StockPlus Premium (1724521) is a high-quality, remanufactured replacement injector for 2006–2007 GM Duramax LBZ engines. Designed to match OEM specs, it improves performance and fuel efficiency while ensuring durability and reliability. Ideal for stock or mildly modified engines, it offers consistent spray patterns, smooth operation, and enhanced responsiveness. Each unit is thoroughly tested for quality and functionality.

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BD Diesel BD-Built Injector StockPlus Standard (1714521) for 2006-2007 Duramax LBZ

SKU: 1714521
$452.50

The BD Diesel BD-Built Injector StockPlus Standard (1714521) is a high-quality replacement injector for 2006–2007 Duramax LBZ engines. Designed to meet or exceed OEM standards, it offers reliable performance, optimal fuel delivery, and combustion efficiency. Ideal for maintaining or restoring factory specs, this injector is built with precision and tested for durability, reflecting BD Diesel’s trusted craftsmanship.

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BD Diesel BD-Built Injector Stock Premium (1725521) for 2006-2007 Duramax LBZ

SKU: 1725521
$496.60

The BD Diesel BD-Built Injector Stock Premium (1725521) is a high-quality, remanufactured fuel injector for 2006–2007 GM Duramax LBZ 6.6L diesel engines. It meets or exceeds OEM standards and undergoes extensive testing, cleaning, and calibration to ensure reliable performance and fuel efficiency. Designed for stock applications, it offers a durable and cost-effective solution to restore engine performance.

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BD Diesel R900 12MM CP3 Pump (105651) for 2001-2010 Duramax LB7 / LLY / LBZ / LMM

SKU: 1050651
$2,702.70

The BD Diesel R900 12MM CP3 Pump (105651) is a high-performance fuel pump designed for 2001–2010 Chevy and GMC Duramax diesel engines (LB7, LLY, LBZ, and LMM). Featuring a 12mm stroke, it provides greater fuel flow than stock pumps, boosting throttle response, power, and efficiency. Supporting up to 900 horsepower with proper modifications, it’s ideal for tuned or modified trucks. The R900 offers factory fitment and reliability, making it a durable and trusted upgrade for diesel performance enthusiasts.