Engine Upgrades
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.
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.
KM 12V Billet Valve Cover O-ring and Seal Kit (KM-Seal-Kit-5.9L-02) for 1989-2002 Cummins 5.9L
A service-ready sealing kit containing (6) M8 copper crush washers and (6) –158 O-rings. Ideal for maintaining fuel, oil, and mechanical components on 5.9L Cummins engines.
KM 12 Valve Billet Timing Front Cover-Machined Aluminum-w/o 12AN Port (012510-3V2-Black-MCover) for 1994-2002 Cummins 5.9L
Black-anodized billet aluminum timing front cover for 5.9L Cummins 12-valve engines. Includes matching black anodized cover plates and a –12AN breather port for enhanced crankcase ventilation and custom plumbing setups.
KM 12 Valve Billet Timing Front Cover-Machined Aluminum-12AN Port (012510-3V2-Black-MCover-12AN) for 1994-2002 Cummins 5.9L
Black-anodized billet timing front cover for 5.9L Cummins 12-valve engines, paired with machine-finished cover plates and an integrated –12AN port for high-flow crankcase ventilation or custom plumbing layouts.
KM 12 Valve Billet Timing Front Cover-Black Anodized-w/o 12AN Port (012510-3V2-Black-BLKCover) for 1994-2002 Cummins 5.9L
Black-anodized billet timing front cover for 5.9L Cummins 12-valve engines. Includes matching black anodized cover plates and a clean, sealed P-pump plate with no –12AN port, offering a streamlined look with OEM compatibility and enhanced durability.
KM 12 Valve Billet Timing Front Cover-Black Anodized-12AN Port(012510-3V2-Black-BLKCover-12AN) for 1994-2002 Cummins 5.9L
Black-anodized billet aluminum timing front cover for 5.9L Cummins 12-valve engines. Includes matching black anodized cover plates and a –12AN breather port for enhanced crankcase ventilation and custom plumbing setups.
KM 24 Valve Billet Tappet Cover VP44 w\o Breather Port (120510-2VP44NP-Black) fits 1998.5 to 2002 Cummins 5.9L
CNC-machined billet aluminum tappet cover designed specifically for 1989–2002 Cummins 5.9L 12-valve engines with VP44 injection pump. Precision baffling improves oil control, and the O-ring block seal with stainless hardware ensures a durable, leak-resistant installation. Great choice for high-performance and daily-use applications.
KM 24 Valve Billet Tappet Cover VP44 w\Breather Port (120510-2VP44P-Black) fits 1998.5 to 2002 Cummins 5.9L
CNC-machined billet aluminum tappet cover designed specifically for 1989–2002 Cummins 5.9L 12-valve engines with VP44 injection pump. Precision baffling improves oil control, and the O-ring block seal with stainless hardware ensures a durable, leak-resistant installation. Great choice for high-performance and daily-use applications.
KM 12V and 24V Billet Tappet O-ring and Seal Kit (KM-Seal-Kit-5.9L) for 1989-2002 Cummins 5.9L
A complete sealing kit that includes 1/8″ O-ring cord, M8 copper crush washers, and -147 O-rings. Designed for rebuilding, resealing, or maintaining various Cummins components where durable, high-temperature sealing is required.
KM 12-Valve Billet Timing Front Cover w/o 12AN Port hole (012510-3V2) for 1994-2002 Cummins 5.9L (Front Gear Housing)
Billet aluminum timing front cover designed for 5.9L Cummins 12-valve engines. This version features a clean, solid P-pump cover plate with no –12AN port, providing a sealed, OE-style appearance with the durability and precision of CNC-machined billet construction.
KM 12-Valve Billet Timing Front Cover w/ 12AN Port hole (012510-3V2-12AN Port) for 1994-2002 Cummins 5.9L (Front Gear Housing)
Precision-machined billet aluminum timing front cover engineered for 5.9L Cummins 12-valve engines. Replaces the factory stamped cover to improve durability and provide precise alignment of timing components, while offering modern compatibility with aftermarket accessories and optional feed ports.
KM 12 Valve Billet Tappet Cover – Black Anodized (120510-2V2-Black) fits 1989-2002 Cummins 5.9L
Black-anodized billet aluminum tappet cover designed for 1989–2002 Cummins 5.9L 12-valve and P-pump 24-valve engines. Precision-machined with integrated baffling, improved valvetrain clearance, and an O-ring block seal for a clean, leak-free installation. Durable anodized finish provides added corrosion protection and a sleek appearance.
KM 12 Valve Billet Tappet Cover (120510-2V2) for 1989-2002 Cummins 5.9L
Precision CNC-machined billet tappet cover designed for 1989–2002 5.9L Cummins 12-valve and P-pump 24-valve engines. Features integrated baffling, enhanced roller rocker clearance, O-ring block seal and durable stainless hardware for a reliable, high-performance upgrade.
Fleece Turbocharger Installation Kit (FPECUMMHX35INSTKIT9402) for 1994-2002 Cummins 5.9L w/HX35 Turbochargers
The Fleece Turbocharger Installation Kit (FPECUMMHX35INSTKIT9402) is a comprehensive, high-quality solution for installing or replacing HX35 turbochargers on 1994–2002 Dodge Ram trucks with 5.9L Cummins engines. It includes all necessary components—gaskets, oil lines, and hardware—for a secure, leak-free installation. Designed for durability and compatibility, it supports both stock and performance builds, making it a reliable choice for enthusiasts and professionals aiming to restore or enhance turbocharger performance.
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 MAP Sensor Adapter Harness (FPE-HAR-CUMM-ADPT-MAP-02) for 2002 Cummins 5.9L
The Fleece MAP Sensor Adapter Harness (FPE-HAR-CUMM-ADPT-MAP-02) is a plug-and-play solution for 2002 Dodge Ram trucks with 5.9L Cummins engines. It enables the use of a newer-style MAP sensor without cutting factory wires, ensuring a secure connection and accurate boost readings. Designed for durability and easy installation, it’s ideal for performance upgrades or sensor replacements.
Fleece Turbocharger Installation Kit (FPE-CUMM-HX35-INST-KIT-9402) for 1994-2002 Cummins 5.9L w/HX35 Turbochargers
The Fleece Turbocharger Installation Kit (FPE-CUMM-HX35-INST-KIT-9402) is a complete, high-quality solution for installing or replacing HX35 turbochargers on 1994–2002 Dodge Ram trucks with 5.9L Cummins diesel engines. It includes premium gaskets, seals, and hardware that meet or exceed OEM standards, ensuring a secure, leak-free fit. Designed for durability and easy installation, the kit improves turbo performance and enhances reliability, making it ideal for both upgrades and maintenance.
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.
ATS Aurora 4000 Turbo System Fits 1998.5-2002 5.9L Cummins .85 A R
Industrial Injection 2nd Gen Quick Spool Compound Turbo Kit (229402) for 1994-2002 Cummins 5.9L 12V
The Industrial Injection 2nd Gen Quick Spool Compound Turbo Kit (229402) is a performance upgrade for 1994–2002 5.9L 12V Cummins engines. It combines a small turbo for quick spool-up and a larger turbo for high-end power, reducing lag and improving airflow, boost response, and overall efficiency. Ideal for street and towing, the kit enhances horsepower and torque while maintaining reliability, making it a top choice for diesel performance enthusiasts.
