Fleece Performance Engineering
Fleece Coolant Bypass Service Kit (FPE-CLNTBYPS-CUMMINS-SER-KIT) 1994-2024 Cummins 5.9L / 6.7L
The Fleece Coolant Bypass Service Kit (FPE-CLNTBYPS-CUMMINS-SER-KIT) is an aftermarket solution for 1994–2024 Cummins 5.9L and 6.7L diesel engines. It improves coolant flow to the rear cylinders, addressing a common cooling issue that can lead to head gasket failure. Designed for durability and easy installation, the kit includes all necessary components and is suitable for daily driving, towing, and performance use. It enhances engine reliability and longevity by equalizing coolant temperatures.
Fleece Coolant Bypass Kit w/Stainless Steel Braided Line (FPE-CLNTBYPS-CUMMINS-0607SS) for 2006-2007 Cummins 5.9L
The Fleece Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-0607SS) is a performance upgrade for 2006-2007 Dodge Ram trucks with 5.9L Cummins engines. It improves engine cooling by rerouting coolant from the rear to the front of the engine, addressing uneven temperature distribution that can cause damage. Featuring a durable stainless steel braided line, the kit enhances thermal efficiency and durability, making it ideal for high-performance or modified engines and helping extend engine life and reliability.
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 Replacement Oil Feed Line Fitting with sealing washer (FPE-APT-M12-06) for 1991-2018 Cummins 5.9L / 6.7L
The Fleece Performance Fleece Replacement Oil Feed Line Fitting (FPE-APT-M12-06) is a durable, high-quality replacement part for 1991–2018 Cummins 5.9L and 6.7L diesel engines. Designed for a precise fit, it provides a secure, leak-free connection for turbo oil feed lines and includes a sealing washer. Suitable for both stock and performance setups, it helps maintain optimal oil pressure and engine performance.
Fleece Freedom Series Cylinder Head – Passenger Side (FPE-61-10014-P) for 2017-2023 Duramax L5P
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.
Fleece Freedom Series Cylinder Head – Driver Side (FPE-61-10014-D) for 2017-2023 Duramax L5P
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.
Fleece Freedom Series Cylinder Head – Street HD (FPE-61-10013-HD) for 1994-1998 Cummins 5.9L
The Fleece Freedom Series Cylinder Head – Street HD (FPE-61-10013-HD) is a high-performance, heavy-duty aftermarket upgrade for 1994–1998 Cummins 5.9L engines. Designed for street-driven trucks, it offers enhanced durability, improved airflow, and combustion efficiency. Fully assembled with premium components, it serves as a direct replacement for stock cylinder heads, making it ideal for rebuilds or performance upgrades in daily driving and light towing applications.
Fleece Freedom Series Cylinder Head – Street – HD (FPE-61-10009-HD) for 1998.5-2002 Cummins 5.9L
The Fleece Freedom Series Cylinder Head – Street – HD (FPE-61-10009-HD) is a heavy-duty, high-performance replacement for 1998.5–2002 Dodge Ram trucks with the 5.9L Cummins engine. Built for durability and reliability under performance tuning and towing conditions, it features upgraded components like hardened exhaust seats and improved coolant flow. Fully assembled with new valves, springs, seals, and retainers, it offers a direct bolt-on upgrade for enhanced engine performance and longevity—ideal for street-driven Cummins owners seeking dependable and improved top-end performance.
Fleece Freedom Series Cylinder Head -Performance Street (FPE-61-10006) for 2003-2007 Cummins 5.9L
The Fleece Freedom Series Cylinder Head (FPE-61-10006) is a high-performance, ready-to-install upgrade for 2003–2007 Cummins 5.9L engines. Designed for street use, it enhances durability and airflow to boost horsepower and torque while maintaining reliability. Featuring precision machining and upgraded components like valve springs, guides, and seals, it’s ideal for replacing worn factory heads and handling the demands of tuned engines.
Fleece Fan Drive Pulley – Black Finish (FPE-34660-BLK) for 2003-2012 Cummins 5.9L / 6.7L
The Fleece Fan Drive Pulley – Black Finish (FPE-34660-BLK) is a high-quality aftermarket component designed for 2003–2012 Dodge Ram trucks equipped with the Cummins 5.9L and 6.7L diesel engines. Engineered for durability and performance, this precision-machined pulley replaces the factory unit to provide improved reliability and aesthetic appeal under the hood. Its sleek black anodized finish not only adds a clean, custom look but also offers enhanced corrosion resistance for long-lasting use. Ideal for enthusiasts looking to upgrade or replace worn OEM parts, the FPE-34660-BLK fan drive pulley ensures optimal belt alignment and smooth operation, making it a dependable choice for both daily drivers and performance builds.
Fleece Fan Drive Pulley – Black Finish (FPE-34659-BLK) for 2013-2018 Cummins 6.7L
The Fleece Fan Drive Pulley – Black Finish (FPE-34659-BLK) is a durable, high-performance aftermarket upgrade for 2013–2018 Ram trucks with the Cummins 6.7L diesel engine. Precision-machined by Fleece Performance, it enhances reliability and maintains optimal belt alignment and cooling efficiency. The black finish resists corrosion and adds a custom look, making it ideal for both functional upgrades and aesthetic improvements under the hood.
Fleece Fan Drive Pulley – Aluminum Finish (FPE-34659-AL) for 2013-2018 Cummins 6.7L
The Fleece Fan Drive Pulley – Aluminum Finish (FPE-34659-AL) is a high-performance aftermarket part for 2013–2018 Cummins 6.7L diesel engines. Made from lightweight, durable aluminum, it reduces rotational mass to boost engine efficiency and responsiveness. Designed for a precise fit and long-lasting use, it’s ideal for both performance and heavy-duty applications. Its corrosion-resistant aluminum finish adds both durability and a custom look under the hood.
Fleece Electric Water Pump Upper Fan Idler Pulley – Black Finish Contrast Cut ( FPE-34658-BLK-SPK) for 2003-2018 Cummins 5.9L / 6.7L
The Fleece Electric Water Pump Upper Fan Idler Pulley (FPE-34658-BLK-SPK) is a high-performance upgrade for 2003–2018 Cummins 5.9L and 6.7L diesel engines. Designed for electric water pump conversions, it replaces the factory fan drive to reduce engine drag and improve reliability. With a black anodized finish for corrosion resistance and enhanced appearance, it ensures proper belt alignment and is ideal for performance or racing setups.
Fleece Upper Fan Pulley Idler – Black Finish Contrast Cut (FPE-34657-BLK-SPK) for 2003-2018 Cummins 5.9L / 6.7L
The Fleece Performance (FPE-34657-BLK-SPK) Upper Fan Pulley Idler is a premium upgrade for 2003–2018 Dodge Ram trucks with 5.9L or 6.7L Cummins diesel engines. Made from billet aluminum with a black anodized finish and contrast cut design, it replaces the stock idler pulley to improve belt alignment, durability, and accessory drive performance. Combining function and style, it enhances both engine bay appearance and reliability under stress.
Fleece Transmission Heat Exchanger Bypass Plug Kit (FPE-34382) for 2003-2007 Cummins 5.9L
The Fleece Transmission Heat Exchanger Bypass Plug Kit (FPE-34382) is an aftermarket upgrade for 2003–2007 Dodge Ram trucks with 5.9L Cummins engines. It replaces the factory transmission heat exchanger, which can fail and cause fluid contamination or temperature issues. This kit improves transmission performance and reliability, especially in cold climates or high-performance use. Made from durable materials and designed for a direct fit, it offers easy installation and long-lasting performance.
Fleece Orange Dual Pump Spoke Pulley (FPE-34211-ORG-SPK) for 2003-2018 Cummins 5.9L / 6.7L
The Fleece Orange Dual Pump Spoke Pulley (FPE-34211-ORG-SPK) is a high-performance, CNC-machined billet aluminum pulley designed for 2003–2016 Cummins 5.9L and 6.7L diesel engines. Featuring a lightweight spoke-style design and durable orange anodized finish, it enhances both the look and functionality of dual CP3 pump systems. Ideal for diesel enthusiasts, it offers improved efficiency, power, and long-lasting performance under demanding conditions.
Fleece Blue Dual Pump Spoke Pulley (FPE-34211-BLU-SPK) for 2003-2018 Cummins 5.9L / 6.7L
The Fleece Blue Dual Pump Spoke Pulley (FPE-34211-BLU-SPK) is a durable, precision-machined billet aluminum pulley designed for 2003–2018 Cummins 5.9L and 6.7L diesel engines with dual CP3 pump setups. Featuring a lightweight spoke design and anodized blue finish for style and corrosion resistance, it ensures proper alignment and efficient power transfer, enhancing fuel delivery and engine performance—ideal for performance-focused builds.
Fleece Fuel Rail Fitting Adapter 14mmx1.5 to 18mmx1.5 – 3.5mm (FPE-34197) for 2012-2018 Cummins 6.7L
The Fleece Fuel Rail Fitting Adapter (FPE-34197) is a high-quality component for 2012–2018 Cummins 6.7L engines, designed to connect aftermarket fuel system parts or diagnostic tools. It features a 14mm x 1.5 male to 18mm x 1.5 female thread with a 3.5mm orifice, ensuring a secure, leak-free fit. Made by Fleece Performance Engineering, it provides OEM-level durability and is ideal for both performance upgrades and maintenance.
Fleece Rail Sensor Block Bracket for Dual Pump Kit (FPE-34183) for 2007.5-2018 Cummins 6.7L
The Fleece Rail Sensor Block Bracket (FPE-34183) is a precision-engineered component for 2007.5–2018 Dodge Ram trucks with 6.7L Cummins engines. Designed for use in dual CP3 or dual fuel pump upgrades, it securely mounts the rail pressure sensor to ensure accurate readings and stable performance under increased fuel demands. Ideal for performance and heavy-duty applications, it is a key part of Fleece Performance Engineering’s dual pump kits.
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.
