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AEM Intake Systems are designed to produce massive horsepower and torque gains as well as better engine sound when used as a replacement for the factory airbox and air filter. AEM intake systems are designed, tuned, and dyno-tested to fit specific cars and trucks. These kits usually include an overs...

AEM Intake Systems are designed to produce massive horsepower and torque gains as well as better engine sound when used as a replacement for the factory airbox and air filter. AEM intake systems are designed, tuned, and dyno-tested to fit specific cars and trucks. These kits usually include an overs...

Bringing you the next generation of intakes, the Momentum HD sealed air intake system is designed using the most up-to-date engineering tools and techniques to provide you with the perfect blend of power and protection. This intake system is superior in every way. From the one-piece sealed housing...

Bringing you the next generation of intakes, the Momentum HD sealed air intake system is designed using the most up-to-date engineering tools and techniques to provide you with the perfect blend of power and protection. This intake system is superior in every way. From the one-piece sealed housing...

Bringing you the next generation of intakes, the Momentum HD sealed air intake system is designed using the most up-to-date engineering tools and techniques to provide you with the perfect blend of power and protection. This intake system is superior in every way. From the one-piece sealed housing...

• 2011-2016 6.7 Intercooler Air to Water Kit • Available In Raw & Polished Finishes • Adds Throttle Response • Slight Drop In EGT's • Decreases Spool-Up Times • Adds Low-End Power and Torque "This Item Does Not Have A Lifetime Warranty" Please n...

Constructed from 4" mandrel-bent aluminized steel tubing Uses a high quality band clamp and OE-style bayonet hangers for a secure fitment Utilizes all factory mounting locations to provide a quick, hassle-free installation Included in this exhaust system is a massive 6" Dia. polis...

Features: Quick and easy plug & play installation without any modifications Around 30 minute installation Dyno tested and produced significant power increases of +25 HP / +45 lbs. x ft. torque Increase turbo boost and fuel pressure to improve vehicle performance, efficiency and throttle respon...

Jeep Wrangler JL / JLU / JT Heavy Duty Adjustable Front Track Bar. Adjustable track bars are used to help center your axles when running a suspension lift. This track bar also significantly improves lateral stiffness over stock, and is seen as a required upgrade to eliminate the factory track bar fr...

Fits: 2020-2023 GM 6.0L LM2 Duramax (See Applications)This AFE 50-70064T Pro 10R Momentum HD Cold Air Intake System is the highest flowing air intake system available for your 2020-2023 GM 3.0L Duramax. This intake is built to fit the biggest air filter possible with a unique filter to housing inter...

Features: Constructed from 5" mandrel-bent stainless steel tubing Uses a high quality band clamp and OE-style bayonet hangers for a secure fitment Utilizes all factory mounting locations to provide a quick, hassle-free installation Includes a massive 6" Dia. stainless steel int...

1944-6OK-HD - 13" Full Performance Organic Clutch Kit w/ South Bend Clutch Flywheel 425 hp 900 ft-lbs torque, 20k towing capacityKevlar Pilot BushingIncludes clutch alignment tool & flywheel bolts. Stage: 3Use: HD-ORGANICFt-Lbs: 475hp, 1000 torqueFits 1999-2003 Ford 7.3L Powerstroke with th...

THIS IS JUST A REPLACEMENT PUMP/ MOTOR, NOT A COMPLETE FUEL PUMP KITIf you are unsure if this product is compatible with your pump please contact Fass with your pump serial number to confirm fitment.Pump gear size: .625150 GPHFass: RPHD-1001...

THIS IS JUST A REPLACEMENT PUMP/ MOTOR, NOT A COMPLETE FUEL PUMP KITIf you are unsure if this product is compatible with your pump please contact Fass with your pump serial number to confirm fitment.Pump gear size: .625165 GPHFass: RPHD-1003...

THIS IS JUST A REPLACEMENT PUMP/ MOTOR, NOT A COMPLETE FUEL PUMP KITIf you are unsure if this product is compatible with your pump please contact Fass with your pump serial number to confirm fitment.Pump gear size: .33595 GPHFass: RPHD-1002...

DHD's heavy duty balancer installer is a must for customers installing aftermarket dampers. Unlike the OE balancer, most performance Duramax dampers are press fit on the crankshaft. This precision fit requires precision installation! DHD's installer utilizes a self centering sleeve to help guide the...

Its always best practice to replace rusty, missing or damaged line retainers while servicing your LB7 injectors. These stainless DHD retainers are direct OE Replacements for LB7 Trucks 2001-2004. This is the perfect alternative to outrageous OE replacement prices. DHD's exclusive kit includes 8 304S...

DHD 700-012AFT LB7 Duramax High Pressure Fuel Line Kit Skip the dealer prices and replace your damaged, rusty high pressure injector lines with this OE supplier replacement from DHD. Our industry resources provide us excellent opportunities to bring you high quality products at industry leadin...

These full featured OEM fit up pipes are an excellent value! These are brand new and include all the high flow, high quality features your looking for at half of a new GM LB7 up-pipe price. DHD has taken OEM replacement to a new level. This stock replacement up pipe allow 53% greater flow than st...

DHD's Deluxe LB7 Low Pressure Fuel Hose Kit includes all engine related fuel supply and return hoses for 2001-2004 LB7 Duramax Diesel pickups. These molded hoses often crack and deteriorate over time leading to leaks and hard starting issues. If you find one hose is leaking its always best practice ...

If your experiencing lopey, erratic idle rpm there's a good chance your FPR or the FPR jumper harness is at fault. This FPR service kit from DHD is a favorite amongst installers. DHD's kit includes everything needed to do the job correctly, the first time. Each kit includes a new OE Bosch fuel press...

*NOT LEGAL FOR SALE OR USE IN CALIFORNIA. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. § 7522(A)(3))**This product is ONLY designed for closed course racing where it is legal to do so. Any other use ...

Kit includes Gaskets and Hardware!Stainless Duramax Up Pipe SetBest FIT! Best Value!NO COREThese full featured OEM length up pipes are an excellent value! These are brand new and include all the high flow, high quality features your looking for at half of new GM LB7 up-pipes.DHD has taken OEM replac...

*NOT LEGAL FOR SALE OR USE IN CALIFORNIA. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. § 7522(A)(3))**This product is ONLY designed for closed course racing where it is legal to do so. Any other use ...

DHD Built Performance Allison Transmission Valve BodyDHD's Turbo Tony valve body is assembled in house with the best parts in the industry. DHD's 17 years of experience building transmissions has really allowed them to hone in on exactly what products and services make the best performing Allison tr...

NEW Design, Steel DIN construction, Does not accept GM compartmental parts or OE switches. DHD 115-510 Dirty Alli-Locker 5-Speed Torque Converter Lockup SwitchThe DHD Dirty Alli-Locker torque converter lockup switch was designed to be an exact fix for the ever long pursuit of true lockup contro...

Replace your damaged or inoperative Duramax PCV valve with this all in one service kit from DHD. As your truck ages these diaphragms swell and distort from exposure to temperature cycles and engine oil. This distortion can decrease the valves efficiency and lead to oil leaks. DHD's service kit inclu...

DHD's TORQ series studs provide the perfect blend of quality and value that all Motorsports enthusiast's seek. These studs are designed to provide marketplace options for the hobbyist and a high quality budget friendly alternative to inadequate OE hardware. While working directly with the manuf...

DHD 115-510U Dirty Alli-Locker 5-Speed Torque Converter Lockup SwitchThe DHD Dirty Alli-Locker torque converter lockup switch was designed to be an exact fix for the ever long pursuit of true lockup controller that will work 100% of the time. After countless troubles with different aftermarket kits ...

This 261/263XHD transfer case rebuild kit is perfect for those whom want to tackle the job themselves. Aside from the hard parts, this kit includes everything you need to service your case. DHD's kit includes all the seals and bearings needed to rebuild your NP261XHD or NP263XHD.Kit Includes:FRONT O...

The Merchant Automotive Deluxe Bearing and Seal kit for the NP263XHD includes all the bearings and seals throughout the transfer case as well as low range shift fork pads and wear pads for the planetary gearset. If you are wanting to completely refresh your transfer case after any kind of no fluid s...

The Merchant Automotive 263XHD Snap Ring Kit includes all ten snap rings required when replacing the snap rings inside the 263XHD transfer case during a complete rebuild. To make identifying and installing the snap rings easier they are each individually packaged and labeled. One kit includes all th...

Increase the output of the charging system in your 2001-2007 GM 6.6L Duramax with the XDP Wrinkle Black HD High Output Alternator XD355. The Duramax engine is a known powerhouse that is easy to modify, but the charging system is often forgotten about until there is an issue.The demands of popular ad...

Alpha™ XD 7500 Air Spring Suspension Kit by Pacbrake for Chevrolet Silverado / GMC Sierra 3500HD trucksHave you ever noticed a difference in ride control when driving empty vs. driving fully loaded? Your truck's factory suspension was designed as a compromise between capability...

Our PPE-forged, OE-style center link is the solution for ultimate strength and rigidity in your steering. This massive 1.5” diameter center link accepts the stock-taper pitman and idler arms so it’s a direct bolt-on replacement. Zerk fittings ensure easy, regular maintenance.  20...

Todays level of competition, advancements in fuel delivery, and advancements in induction require more of your engine. Everyone is looking for the edge on their competition, whether it be more power, or better longevity, it all counts.Dirty Hooker Diesels years of experience building high performanc...

DHD's stainless steel Duramax hot side pipe kit is the perfect upgrade for your weak and restrictive factory hot side pipe. Our pipe kit fits 2001-2010 Duramax trucks and is designed to mimic the factory tube routing and placement. This direct fit design makes it so no engine accessories, wheel line...

For over 3 years DHD's TORQ series fasteners have been setting the benchmark for quality, performance and value. Don't be fooled by inferior late arrivals to the fastener market. Replace your OE flexplate / flywheel bolts with these 8740 chromoly fasteners from DHD. Our bolts work perfect with St...

These high performance motor mounts are the original! Since 2013, DHD engine mounts have set the standard for upgraded Duramax engine mounts. Our design maintains engine alignment and engine height while adding the strength and durability of a high performance polyurethane. The polyurethane we use i...

Not all up pipe bolts are created equal! Its just about impossible to find the correct dimension M10 bolt with the correct shoulder and socket size as factory. Well, not anymore!DHD's up pipe bolts are designed to be an exact replacement for your rusty or broken OE hardware. These bolts work well on...

DHD 030-5001 Billet Rear Engine Cover Coolant Block Off PlateDHD's Billet Coolant Passage Block Plate is used to stop the problematic Duramax coolant leak where the stock cast plate is installed on the rear engine cover. Use this to fix your current coolant leak or to prevent a possible future coola...

This kit contains a full set of triple layer Stainless Steel MLS Up Pipe Gaskets.Kit includes 4 Gaskets!2 Up Pipe to Turbo GasketsGM Replacement Part# 971926182 Manifold to Up Pipe GasketsGM Replacement Part# 97188685A leaky up pipe gasket cause a ticking sound within the engine bay and drastically ...

Refreshing or resealing your engine? Replace your rusty, damaged or broken hardware with this zinc coated oil pan bolt kit from DHD.  Note: This kit will allow you to convert your studs to bolts, and or use the nuts provided on your studs.    Features: Perfect Fit OE Gr...

Replace your cracked or damaged OE flex plate with this heavy duty option from DHD. These units are nearly twice as thick as OE and are engineered to handle up to 1500lb-ft or torque. DHD's heavy duty flex plates are a must for customers with aftermarket torque converters and built transmissions! A ...

DHD Duramax AC Delete kit is a complete kit that will allow you to remove the AC compressor on your LB7, LLY, LBZ, LMM, LML and L5P equipped GM trucks and Vans. The bracket, pulley and pulley bolt are included.    Part Number: 500-101 ...

The Best Bang for Your BUCK! This All-In-One kit is perfect for any Duramax owner that wants to add cooling capacity and longevity to there Allison 1000. This kit will add approximately 3 qts of fluid capacity and eliminate the risk of filter fallout or cavitation. When the hard works done, slip ...

You can rely on the XDP Wrinkle Black HD Gear Reduction Starter XD251 to get your 2001-2020 GM 6.6L Duramax running in the most extreme environments. XDP's HD Gear Reduction Starters are faster, stronger, and more durable than your factory starter. This gives you the ability to turn over even the mo...

Backordered til Mid July   **Updated on 06/26/2024** Replace your damaged starter ring gear with this new replacement from DHD. Sweating a new ring gear onto your current flywheel will eliminate the need to rebalance your rotating assembly. Its highly recommended that you replace your f...