Engine Upgrades
Mahle De-Lipped Cast Piston Set (MLE930036055) for 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML
$1,789.35The Mahle De-Lipped Cast Piston Set MLE930036055 is designed for 2001–2016 Duramax engines, including LB7, LLY, LBZ, LMM, and LML. These pistons feature a de-lipped combustion bowl, steel top ring land, and advanced coatings for improved durability and reduced friction. The kit includes pistons, rings, wrist pins, and circlips for a complete rebuild solution. Built for towing, performance applications, and dependable daily use.
WAGLER CONNECTING ROD SET (WCPCRC6.6) for 2001-2016 DURAMAX LB7 / LLY / LBZ / LMM / LML
$3,360.00The Wagler WCPCRC6.6 connecting rod set is designed for 2001–2016 Duramax engines including LB7, LLY, LBZ, LMM, and LML platforms. Forged from certified 4340ACQ steel, these rods feature an upgraded I-beam design with increased strength and durability. Precision machining allows them to work with factory pistons without additional clearancing. The shot-peened finish improves fatigue resistance for high horsepower applications. This rod set is built for serious Duramax performance and reliability.
ARP Head Studs (ARP230-4201) for 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML
$879.15The ARP230-4201 head stud kit is designed for 2001–2016 Duramax engines, including LB7, LLY, LBZ, LMM, and LML platforms. Manufactured from premium 8740 alloy steel, these studs provide superior clamping force and durability compared to factory head bolts. The precision heat treatment and rolled thread design improve fatigue strength and reliability. This kit helps prevent head lift and maintain head gasket sealing in high-horsepower Duramax engines.
Fleece 1″ T4 Pedestal Spacer (FPE-T4PED-SPACER1.0) for Duramax equipped w/T4 Turbos
The Fleece 1″ T4 Pedestal Spacer (FPE-T4PED-SPACER1.0) is a high-quality component designed for Duramax engines with T4 turbochargers. It raises the turbo pedestal by one inch to allow clearance for larger or custom turbos, ensuring proper alignment and secure mounting. Ideal for performance upgrades and custom builds, it enhances compatibility and flexibility in turbo system modifications.
Fleece Multiuse Sensor Pigtail No 11 (FPE-HAR-MU-PT-11) for 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML
The Fleece Multiuse Sensor Pigtail No. 11 (FPE-HAR-MU-PT-11) is a durable, OEM-style replacement wiring solution for 2001–2016 Duramax diesel engines (LB7, LLY, LBZ, LMM, LML). Designed for easy installation and reliable sensor connections, it helps maintain proper engine management. Made from automotive-grade materials, it offers long-lasting performance in tough conditions and is ideal for replacing damaged connectors or custom wiring upgrades.
Fleece Performance Billet Oil Cap Red (FPE-DMAX-OC-RED) for 2001-2016 Duramax LB7 / LLY / LBZ
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
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
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 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.
Industrial Injection XR1 Turbocharger 63.5mm (8973077111-XR1) for 2001-2004 Duramax 6.6L LB7
This XR1 Series LB7 Turbocharger comes with an upgraded Billet Blade Technology 63.5mm compressor wheel as well as a polished compressor housing. The Billet Blade Technology compressor wheel is designed to increase turbo efficiency to help lower EGT’s while adding strength and reliability.
Sinister Diesel Black Diamond Head Gasket (Pass. A) (SDBD580) for 2001-2010 Duramax 6.6L
Replace blown or leaking head gaskets on your 2001–2010 Duramax LB7, LLY, LBZ, or LMM diesel engine with the Sinister Diesel Black Diamond Head Gasket. Designed for durability, it features a 5-layer stainless steel construction with an FKM coating for a heavy-duty seal that withstands high heat and pressure. Available for both driver’s and passenger’s sides.
All sales are final for clearance items. Only valid while supplies last.
Sinister Diesel High Amp (400A) Wiring Upgrade Kit (SDALTWIRE)
This kit includes all necessary cables to upgrade the alternator charge, alternator ground, and chassis ground. It enhances performance for both stock and high-output alternators up to 400 amps. The cables feature 5285-strand pure copper construction with a 17.2mm diameter and a hyperflex frosted jacket.
Sinister Diesel 320 Amp OEM High Output Alternator (SDALT6601320) for 2001-2007 Duramax 6.6L
The Sinister Diesel 320 Amp OEM alternator is a trusted solution for GM Duramax 6.6L alternator failures, which can cause electronics issues due to low voltage. It features brand-new OEM components for reliability and is a direct fit without modifications. The alternator comes with a 1-year warranty.
Fleece Turbo Compressor Discharge Adapter Kit for S400 Turbos (FPE-S4TCDA-KIT) Universal
The Fleece Turbo Compressor Discharge Adapter Kit (FPE-S4TCDA-KIT) is a durable, high-quality solution for connecting S400 turbochargers to custom intercooler piping. Made from robust, machined aluminum, it ensures optimal airflow and reliable performance under high boost. Its universal design fits a wide range of applications, making it ideal for diesel upgrades and high-performance builds.
Fleece Freedom Series Cylinder Head w/Cupless Injector Bore – Passenger Side (FPE-61-10001-P-CL) for 2001-2004 Duramax LB7
The Fleece Freedom Series Cylinder Head with Cupless Injector Bore (FPE-61-10001-P-CL) is a high-performance, fully assembled replacement for 2001–2004 GM Duramax LB7 engines. Made by Fleece Performance Engineering, it eliminates injector cups to prevent fuel leaks and boost reliability. Built from premium materials and precision-machined, it suits both stock and high-horsepower setups, offering durability, strength, and easy installation for those upgrading or rebuilding their engines.
AEM 100 PSIg Brass Sensor Kit 1/8 in. NPT Male Thread (30-2131-100)
The AEM 100 PSIg Brass Sensor Kit is a reliable and high-quality product designed for precise pressure readings. The sensor body is made of durable brass material, ensuring long-lasting use and accuracy. The 1/8 inch NPT male thread makes it easy to install in a variety of applications. This kit also includes a 100 PSIg brass sensor connector and pins, providing all the necessary components for a complete and efficient sensor setup. Whether for automotive, industrial, or other uses, this brass sensor kit is a versatile and essential tool for any pressure measurement needs.
Fleece Freedom Series Cylinder Head w/Cupless Injector Bore – Driver Side (FPE-61-10001-D-CL) for 2001-2004 Duramax LB7
The Fleece Freedom Series Cylinder Head with Cupless Injector Bore (Driver Side, FPE-61-10001-D-CL) is a high-quality replacement for 2001–2004 GM 6.6L Duramax LB7 engines. It features a cupless injector design to prevent coolant leaks and injector issues, and is made from premium materials with precision machining for excellent fit and durability. Each head is rigorously pressure-tested for reliability, making it ideal for both stock restorations and high-performance upgrades.
BD Diesel Constant Tension Hose Clamp 2.75in High Torque (1405209) Universal
The BD Diesel Constant Tension Hose Clamp (2.75in High Torque, 1405209) is a durable, high-performance clamp designed for secure sealing in high-pressure automotive applications. It maintains consistent tension to adapt to temperature changes and hose movement, ensuring leak-free performance. Ideal for turbo systems and coolant lines, it offers strong clamping force and long-lasting reliability, making it a top choice for automotive enthusiasts and professionals.
Fleece Replacement Sensor Connector With Pigtail (FPE-HAR-MU-PT-1) for 2001-2022 Duramax LB7 / LLY / LBZ / LMM / LML / L5P
The Fleece Replacement Sensor Connector With Pigtail (FPE-HAR-MU-PT-1) is a durable, OEM-style replacement part for 2001–2022 GM Duramax diesel engines. Designed to replace damaged or worn sensor connectors, it ensures reliable electrical connections and easy installation. Ideal for maintenance or repairs, it offers a long-lasting, cost-effective solution for restoring sensor function in LB7, LLY, LBZ, LMM, LML, and L5P engine models.
ARP Harmonic Damper Bolt Kit (129-2503)
The World Leader in Fastener Technology released the Harmonic Damper Bolt kit for the Chevrolet 6.6L Duramax applications. The kit is manufactured from premium grade chrome moly steel with a Black Oxide finish.
AEM 150 PSIg Brass Sensor Kit (30-2131-150) 1/8 in. NPT Male Thread
The AEM 150 PSIg Brass Sensor Kit (30-2131-150) is a reliable and versatile pressure sensor kit that is designed to accurately measure up to 150 pounds per square inch gauge (PSIg) of pressure. The sensor body is made of durable brass material, ensuring its longevity and resistance to corrosion. With a 1/8 inch NPT male thread, this sensor can easily be installed in a variety of applications. The kit includes a 150 PSIg brass sensor connector and pins, making it a complete package for immediate use. Whether you need to monitor the pressure in your car’s engine or in an industrial setting, this sensor kit is a great choice for its accuracy and durability.
Fleece Cheetah® Turbocharger (FPE-LB7-63) for 2001-2004 LB7 Duramax
The Fleece Cheetah® Turbocharger (FPE-LB7-63) is a high-performance, drop-in replacement for 2001–2004 GM 6.6L LB7 Duramax engines. It offers improved power, quicker spool-up, and better efficiency while maintaining stock fitment for easy installation. Featuring a custom billet compressor wheel and upgraded turbine, it enhances towing, throttle response, and horsepower without compromising reliability, making it ideal for street, towing, or light competition use.
BD Diesel Turbo Adapter Manifold Flange (1044106) for T4-T3 Adapter Flange – All Diesel Truck Apps
The BD Diesel Turbo Adapter Manifold Flange (1044106) is a durable, high-performance adapter that enables the installation of a T4 turbocharger onto a T3 exhaust manifold. Designed for reliability and minimal exhaust leakage, it allows for turbo upgrades without replacing the entire manifold, making it ideal for diesel performance enthusiasts and custom setups.
BD Diesel Constant Tension Hose Clamp 3.5in High Torque (1405212) Universal
The BD Diesel Constant Tension Hose Clamp 3.5in High Torque (1405212) is a durable, spring-loaded clamp designed for high-boost, high-temperature applications. It automatically adjusts to hose expansion and contraction, ensuring a consistent seal. Ideal for turbocharger systems and intercooler piping, its high-torque design prevents leaks and hose blow-offs, making it a reliable choice for performance-focused diesel engines.
