Engine Upgrades
Top Heater Hose Upgrade (MMHOSE-RAM-07HU) for 2007.5+ 6.7L RAM Cummins
Specifically designed to replace the leak-prone heater hose quick-disconnect at the engine, this upgrade features an O-ring-less, -10AN connection for improved reliability. Say goodbye to coolant leaks and hello to seamless coolant flow.
ARP Head Stud Kit (247-4202)
The ARP Head Stud Kit (247-4202) is a high-quality and durable product designed to improve the performance and reliability of your engine. It features strong and precise head studs that provide superior clamping force, ensuring a secure and tight seal between the cylinder head and engine block. This results in improved head gasket sealing and prevents head lifting, which can lead to costly engine damage.
BD Diesel Iron Horn Turbo Manifold Package – Wheel Size-S363SXE/80 0.91 AR (1045293) for 2007-2018 Cummins 6.7L
This performance turbo kit replaces the stock Holset turbo to improve reliability and power. It lowers exhaust gas temperatures and turbo drive pressures, protecting the head gasket and extending engine life, while also delivering a significant horsepower boost. Ideal for both street and track use, it’s the most complete bolt-on solution available.
Fleece Turbo Drain Tube Kit VGT Turbochargers (FPE-CTDT-VGT-KIT) for 2007.5-2018 Cummins 6.7L
This new silicone hose drain tube kit simplifies turbocharger installation by replacing the non-flexible OE drain line. Designed for 6.7L Cummins Dodge Ram engines with factory VGT turbos or drop-in replacements like the Cheetah Series, it features a larger inner diameter smooth silicone hose and black anodized billet aluminum fittings with built-in O-rings to ensure proper oil drainage and an easier install.
KM Common Rail Billet Gear Housing P-Pump or Sigma w/ Removable Gear Access (080718-1) for 2003-2025 Cummins 5.9L & 6.7L
Billet aluminum timing front cover for 2003-up Cummins 5.9L and 6.7L Common Rail engines. Designed for strength, precision sealing, and compatibility with factory sensors, accessories, and gear housings. Includes stainless hardware and block-off plate.
KM 24 Valve Billet Timing Front Cover (103023-1) for 2003-2024 5.9L & 6.7L Common Rail
Billet aluminum timing front cover for 2003-up Cummins 5.9L and 6.7L Common Rail engines. Designed for strength, precision sealing, and compatibility with factory sensors, accessories, and gear housings. Includes stainless hardware and block-off plate.
Fleece S300-S400 Turbo Installation Kit (FPE-TURBO-INST-KIT-CUMM67) for 2007.5-2018 Cummins 6.7L
The Fleece S300-S400 Turbo Installation Kit (FPE-TURBO-INST-KIT-CUMM67) is designed for 2007.5–2018 Dodge Ram trucks with 6.7L Cummins engines. It includes all necessary components—such as a turbo drain tube, oil feed line, gaskets, and mounting hardware—to simplify the installation of S300 and S400 turbochargers. Built for durability and a precise fit, the kit ensures reliable performance and easy installation, making it ideal for those seeking improved towing capacity or increased horsepower.
Fleece Orange Billet Oil Cap Cover (FPE-OC-CR-F-ORG) for 2003-2018 Cummins 5.9L / 6.7L
The Fleece Orange Billet Oil Cap Cover (FPE-OC-CR-F-ORG) is a durable, high-quality upgrade for 2003–2018 Cummins 5.9L and 6.7L diesel engines. Made from billet aluminum with an anodized orange finish, it enhances engine bay appearance while providing improved durability over the stock plastic cap. Easy to install, it fits securely over the OEM oil cap, offering both functional reliability and custom style for performance enthusiasts.
Fleece Blue Billet Oil Cap Cover (FPE-OC-CR-F-BLU) for 2003-2018 Cummins 5.9L / 6.7L
The Fleece Blue Billet Oil Cap Cover (FPE-OC-CR-F-BLU) is a durable, CNC-machined aluminum upgrade for 2003–2018 Cummins 5.9L and 6.7L diesel engines. Featuring an anodized blue finish, it enhances engine bay appearance while fitting securely over the factory oil cap without affecting performance. Designed for durability and style, it’s an ideal accessory for diesel enthusiasts.
Fleece Factory Oil Feed Line Fitting (FPE-HOL-FD-FIT) for 1994-2022 Cummins 5.9L / 6.7L w/Holset Turbochargers
The Fleece Performance Fleece Factory Oil Feed Line Fitting (FPE-HOL-FD-FIT) is a durable, precision-engineered replacement part for 1994–2022 Cummins 5.9L and 6.7L engines with Holset turbochargers. It ensures a secure, leak-free connection for optimal turbocharger lubrication. Designed for easy installation and OEM-level reliability, it’s ideal for both performance upgrades and regular maintenance.
Fleece HE400VG / HE451VE Turbocharger (FPE-HE4-67) for 1994-2022 Cummins 5.9L / 6.7L ISX – 67mm
The Fleece HE400VG / HE451VE Turbocharger ISX – 67mm (FPE-HE4-67) is a high-performance upgrade for 1994–2022 Cummins 5.9L and 6.7L engines. Featuring a 67mm compressor wheel, it boosts airflow and response, making it ideal for increased power and efficiency. Designed to replace the factory VGT turbo, it offers durable construction for demanding use in towing, racing, or daily driving, and suits both stock and modified engines.
Fleece HE400VG / HE451VE Turbocharger (FPE-HE4-64) for 1994-2022 Cummins 5.9L / 6.7L ISX – 64mm
The Fleece HE400VG / HE451VE Turbocharger (FPE-HE4-64) is a high-performance, direct replacement turbo for 1994–2022 Cummins 5.9L and 6.7L ISX engines. It features a 64mm compressor wheel for increased airflow and boost efficiency, enhancing power and responsiveness without compromising reliability. Suitable for on-road and off-road use, it maintains OEM fitment while delivering aftermarket performance, making it ideal for towing, daily driving, or performance applications. Its variable geometry design ensures quick spool-up and improved throttle response.
Fleece Crankcase Pressure Sensor Pigtail (FPE-HAR-CUMM-CCP-PT) for 2007.5-2018 Cummins 6.7L
The Fleece Crankcase Pressure Sensor Pigtail (FPE-HAR-CUMM-CCP-PT) is a durable, weather-resistant replacement connector for 2007.5–2018 Cummins 6.7L diesel engines. Designed to meet or exceed OEM standards, it ensures reliable connection to the crankcase pressure sensor, aiding engine performance and emissions monitoring. Its plug-and-play design allows for easy installation, making it ideal for repairing damaged factory connectors.
Fleece Performance Fire Ring Head Gasket (FPE-CUMM-HG-6.7-FR) for 2007.5-2018 Cummins 6.7L
The Fleece Performance Fire Ring Head Gasket (FPE-CUMM-HG-6.7-FR) is a high-performance gasket designed for 2007.5–2018 Cummins 6.7L diesel engines. Built to handle extreme pressures and temperatures, it features integrated fire rings for superior combustion sealing. Ideal for tuned or modified engines, it enhances reliability and durability, making it a popular choice among diesel performance enthusiasts.
Fleece Performance Front Gear Housing Dowels (FPE-CUMM-FGHD-KIT) for 2003-2018 Cummins 5.9L / 6.7L
The Fleece Performance Front Gear Housing Dowels (FPE-CUMM-FGHD-KIT) are durable, precision-engineered components designed for 2003–2018 Cummins 5.9L and 6.7L engines. They ensure secure alignment of the front gear housing, reducing the risk of engine damage from misalignment. Suitable for both stock and modified engines, this kit offers improved fitment and longevity over OEM parts, making it ideal for engine assembly or rebuilds.
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 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.
BD Diesel Iron Horn Turbo Manifold Package – Wheel Size-S366SXE/80 0.91 AR (1045296) for 2007-2018 Cummins 6.7L
This performance turbo kit replaces the stock Holset turbo to improve reliability and power. It lowers exhaust gas temperatures and turbo drive pressures, protecting the head gasket and extending engine life, while also delivering a significant horsepower boost. Ideal for both street and track use, it’s the most complete bolt-on solution available.
BD Diesel Iron Horn Turbo Manifold Package – Wheel Size-S369SXE/80 0.91 AR (1045298) for 2007-2018 Cummins 6.7L
This performance turbo kit replaces the stock Holset turbo to improve reliability and power. It lowers exhaust gas temperatures and turbo drive pressures, protecting the head gasket and extending engine life, while also delivering a significant horsepower boost. Ideal for both street and track use, it’s the most complete bolt-on solution available.
Sinister Diesel Valve Cover Gasket Kit (SDVCGKCUMN075) for 2007.5-2012 Cummins 6.7L
The Sinister Diesel Valve Cover Gasket Kit SDVCGKCUMN075 fits 2007.5-2012 Cummins 6.7L engines. It is engineered as a direct-fit replacement to help maintain proper engine sealing. Premium gasket materials improve durability under high temperatures and harsh operating conditions. This kit helps reduce the risk of oil leaks and sealing problems. The SDVCGKCUMN075 includes a 2-year warranty for added reliability.
Sinister Diesel Pitbull Series® Turbocharger (SDPB67CTURBO) for Cummins 2007.5-2017 6.7L
The Sinister Diesel 6.7 Cummins Pitbull Turbo is a high-performance upgrade for the 6.7L Cummins diesel engine. It is a direct bolt-on replacement for the factory turbo, making installation easy. Featuring a larger high-flow compressor and turbine wheel, it improves airflow, reduces back pressure, and enhances spool-up times to minimize turbo lag.
Sinister Diesel Heads Up Kit w/ARP Heads (SD-HU-6.7C) for Cummins 6.7L
The Sinister Diesel Heads Up Kit is designed to strengthen 6.7L Cummins diesel engines, allowing them to handle increased horsepower and torque while preventing common performance issues. The kit includes ARP head studs and Mahle gaskets, ensuring reliable installation and protection against head gasket leaks that could cause severe engine damage. ARP head studs offer superior clamping force (220,000 psi) for a secure seal between the cylinder head and engine block.
Sinister Diesel Bypass Oil Filter System (SDEOF67C07) for 2007-2012 Cummins 6.7L
The Sinister Diesel 6.7L Cummins Oil Bypass Kit improves engine performance and longevity by filtering oil more effectively than the factory system. It removes more contaminants using a high-quality filter and specially designed parts, ensuring better engine protection.
