Duramax: 2004.5-2005 (LLY)
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.
Fleece Rocker Bridges (FPE-BRAB-D1) for 2001-2016 Duramax LP7 / LLY / LBZ / LMM / LML
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 Tall Stack Cover – 5″ Diameter – Straight Cut (FPE-STK-CVR-5-S) fits 5″ stack
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
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
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
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
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 R900 12MM CP3 Pump (105651) for 2001-2010 Duramax LB7 / LLY / LBZ / LMM
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.
BD Diesel BD-Built Injector Stock Premium(1725504) for 2004.5-2006 Duramax LLY / LBZ
The BD Diesel BD-Built Duramax LLY Injector Stock Premium (1725504) is a high-quality, remanufactured replacement injector for 2004.5–2006 GM Duramax LLY and LBZ diesel engines. Designed to meet or exceed OEM specs, it ensures efficient fuel atomization and combustion, enhancing engine performance, reliability, and fuel economy. Ideal for stock applications, it helps restore power and maintain emissions compliance.
BD Diesel BD-Built Injector StockPlus Premium (1724504) for 2004.5-2006 Duramax LLY / LBZ
The BD Diesel BD-Built Duramax LLY Injector StockPlus Premium (1724504) is a remanufactured, high-performance replacement fuel injector for 2004.5–2006 GM Duramax LLY and LBZ engines. Designed to exceed OEM standards, it improves fuel atomization, efficiency, power, and emissions. Ideal for stock or mildly upgraded trucks, each injector is rigorously tested for quality and durability, making it a reliable choice for diesel enthusiasts and mechanics.
BD Diesel BD-Built Injector StockPlus Standard (1714504) for 2004.5-2006 Duramax LLY / LBZ
The BD Diesel BD-Built Duramax LLY Injector StockPlus Standard (1714504) is a high-quality, remanufactured fuel injector designed for 2004.5–2006 Chevrolet and GMC trucks with Duramax LLY or LBZ 6.6L diesel engines. It meets or exceeds OEM standards, ensuring reliable performance, durability, and compliance with factory fuel economy and emissions. Built with premium components and thoroughly tested, it’s ideal for stock or lightly modified engines, restoring power and efficiency without the need for tuning or additional modifications.
BD Diesel BD-Built Duramax LLY CR Injector 43%-90HP (1716606) for 2004.5-2006 Duramax 6.6L LLY / LBZ
The BD Diesel BD-Built Duramax LLY CR Injector (1716606) is a high-performance, remanufactured fuel injector for 2004.5–2006 GM vehicles with 6.6L Duramax LLY or LBZ engines. It delivers 43% more fuel flow than stock, supporting up to 90 extra horsepower. Built with OE-quality components and rigorously tested, it’s ideal for towing, racing, or boosting overall engine performance.
Bilstein Rear B8 5160 Shock (25-311846) for 2001-2024 Duramax LB7 / LLY / LBZ / LMM / L5P / LML
The Bilstein B8 5160 remote reservoir shock absorbers are high-performance, direct-fit upgrades for lifted trucks and SUVs. They feature a remote reservoir for better cooling and increased wheel travel, enhancing off-road capability. With a monotube design and velocity-sensitive digressive valving tuned for specific vehicles, these shocks deliver consistent, fade-free performance. They also include a 360-degree swivel banjo hose fitting and a sleek billet reservoir mount for a clean installation. Overall, the B8 5160 shocks boost durability and off-road performance.
Fleece Multiuse Sensor Pigtail No 10 (FPE-HAR-MU-PT-10) for 2004.5-2016 6.6L Duramax and 2003-2010 6.0L/6.4L Powerstroke
Replacement connector with 6″ pigtail for use in multiple locations on the Duramax and Powerstroke engines.
EFI Live FlashScan 3 (FS3-GM) for 2001-2016 GM Duramax LML/LMM/LBZ/LLY/LB7
FlashScan V3 Scan Only is a scan tool, data logger and calibration reader for selected GM, Dodge Cummins and Cummins HD engine controllers, in either standalone mode (FlashScan V3 to vehicle connection), or in pass through mode (PC/laptop to FlashScan V3 to vehicle connection).
S&B Replacement Clear Lid (AM0404-00) for Cold Air Intake 75-5102
The S&B Replacement Clear Lid (AM0404-00) is a high-quality and durable component designed to be a direct replacement for the original lid on the S&B Cold Air Intake 75-5102. This clear lid offers a stylish and functional upgrade to your air intake system, allowing you to easily monitor the filter and ensure it is performing at its best.
Sinister Diesel “Welded” Water Pump (SDWWP01) for 2001-2005 Duramax LB7 / LLY
Proper cooling is essential for reliable performance in modified engines. The factory Duramax water pump can slip under load, causing serious issues in high-horsepower setups. The Sinister Diesel Welded Duramax Water Pump is a drop-in replacement for 2001–2005 Duramax trucks, featuring TIG-welded impeller and pump gear for improved durability. It’s ideal for trucks with performance upgrades or due for maintenance.
Sinister Diesel Valve Cover Gasket Kit (SDVCKFGM045) For 2004-2010 Duramax 6.6L
Sinister Diesel offers high-quality valve cover gaskets for light and medium-duty diesel engines, including Ford Power Stroke, Dodge Cummins, and GM Duramax models. Made primarily in the USA, these gaskets use premium synthetic rubber compounds like high-temperature silicone and Fluoroelastomer (FKM) for superior sealing and heat resistance compared to lower-quality offshore alternatives.
Sinister Diesel Pre-Filter Sock for Cold Air Intake (SDUPFS0120)
The Sinister Diesel Pre-Filter Sock helps keep your truck’s air filter clean by blocking debris down to 5 microns without reducing airflow. This extra layer of protection improves performance and extends filter life. Backed by a 2-year warranty.
SINISTER DIESEL TRANSMISSION REAR HOUSING SUPPORT (SDRHSDMAXZF6) FOR 2001-2005 Duramax LB7 LLY using ZF6 transmission
The Sinister Diesel Transmission Rear Housing Support is designed for 2001-2005 GM Duramax trucks with LB7 and LLY engines using the ZF6 manual transmission. It provides additional support and durability to the transmission housing.
Sinister Diesel Transmission Rear Housing Support (SDRHSDMAX0107) for 2001-2007 Duramax LB7/LLY/LBZ with Allison transmission
The Sinister Diesel Transmission Rear Housing Support (SDRHSDMAX0107) is designed for 2001-2007 Duramax LB7, LLY, and LBZ engines with an Allison transmission. It reinforces the transmission’s rear housing, improving durability and reducing stress on critical components.
