Top 10 LLY Duramax PERFORMANCE – Automotive Replacement Transmissions & Parts

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1. Fleece Performance Engineering

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Fleece Performance Engineering FPE-TAPSHIFTER35 Tap Shifter 03-05 GM Duramax 6.6L LB7 / LLY GM/Allison

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Fleece Performance Engineering #ad - Comes with full manufacturer warranty. Fits multiple makes and models contact seller with your vehicle for fitment compatibility information.
BrandFleece Performance Engineering #ad
ManufacturerFleece Performance Engineering #ad
Height12 Inches
Length3 Inches
Width6 Inches
Part NumberFPE-TAPSHIFTER35
ModelFPE-TAPSHIFTER35

2. Pacific Performance Engineering

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PPE Race Fuel Valve for 2004.5-2010 Duramax LLY/LBZ/LMM 113073000 with PPE Viton O-Ring Upgrade for PPE Race Fuel Valve

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Pacific Performance Engineering #ad - The ppe race fuel valve heat treated stainless steel construction replaces stock or a shimmed pressure relief valve. The ppe race fuel valve heat treated stainless steel construction replaces stock or a shimmed pressure relief valve.

Fits 2004. 5-2010 duarmax lly/LBZ/LMM. Kit includes ppe viton o-Ring 1137073001. It eliminates potential low fuel rail pressure DTC codes P1093 or P0087 low fuel rail pressure during power enrichment that are caused by insufficient PRV spring pressure. This valve helps maintain fuel rail pressure during high engine load conditions by completely blocking the pressure relief port effectively eliminating fuel return to the fuel tank.
BrandPacific Performance Engineering #ad
ManufacturerPacific Performance Engineering #ad
Height5 Inches
Length4 Inches
Weight0.19 Pounds
Width0.5 Inches
Part Number113073000 w/ 1137073001
Model113073000 w/ 1137073001

3. PPE

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PPE Performance Transmission Cooler for 2003 2004 2005 CHEVY GMC LB7/LLY & LBZ/LMM 124060300

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PPE #ad - Excess heat is the #1 killer of transmissions. For individuals who tow, race or simply run their diesel hard, know that proper cooling of your transmission fluid is one of the most important things that you can do to increase the life of your transmission.

Ppe’s performance transmission cooler is a direct bolt-on replacement part that lowers the fluid temperatures up to an additional 20 to 30 degrees over the stock unit. Increased surface area provides 60% more heat rejection - Factory-fit. 2003-2005 allison-equipped gm hd vehicles 124060300 - connectors with Purple Clips. When the mainline pressure is increased with things such as a high-performance transmission kit, you end up with additional heat being generated, so we recommend a Performance Transmission Cooler in such applications.
BrandPPE #ad
ManufacturerPPE #ad
Height13.5 Inches
Length17.25 Inches
Weight7.8 Pounds
Width3 Inches
Part Number124060300
Model124060300

4. Mahle

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ARP Stud Kit w/Mahle Head Gasket Set & Grade 'C' Head Gaskets, Duramax LLY LBZ 6.6

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Mahle #ad - Increase the Lifespan of Your Engine. Kit includes: arp studs, upper Head Gasket Set, and Left and Right Head Gaskets. Drastically upgrade The Performance of Your Engine.
BrandMahle #ad
ManufacturerMAHLE ARP #ad
Part NumberDK-GMLLY-HGK12

5. GPP

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Turbo Inlet Manifold Intake Elbow 2004.5-2005 Duramax Diesel LLY 6.6L Sierra Silverado 6.6

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GPP #ad - Increasing air flow / Smooth unrestricted flow designed. Lower egts keeping your engine running at cooler temperatures. Increases performance 25hp and 57lbs x ft. Powder coated black body CNC machined edges. Improves throttle response. Torque.
BrandGPP #ad
ManufacturerGPP #ad
Part NumberGPP-102

6. Fleece Performance Engineering

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Fleece Performance Engineering -GM-ALO-37 Gm All Lights On 2003-2007 Classic

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Fleece Performance Engineering #ad - It keeps things looking nice and clean and you won't have to worry about any wires wiggling loose. All lights on: simply install the module to allow your high-beams, low-beams and fog lamps to simultaneously illuminate the road ahead.

Fitment: fits on 2003-2007 full size gm trucks 2005-3500 Silverado/Sierra or if your fuse box is laid out like the one shown in the photos. Easy install: installs in 5 minutes or less. Normal function: when the high-beams are not turned on your low-beams and fog lights will function normally. Simple upgrade: the module installs right inside your fuse box. Simply remove the relays shown, lay the module on your circuit board, and reinstall the relays.
BrandFleece Performance Engineering #ad
ManufacturerFPE #ad
Height0.25 Inches
Length6 Inches
Width6 Inches
Part Number-GM-ALO-37
Model-GM-ALO-37

7. Mishimoto

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Mishimoto MMTC-DMAX-03SL Transmission Cooler Fits Chevrolet/GMC Duramax 6.6 LB7/LLY 2003-2005 Silver

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Mishimoto #ad - Stacked-plate construction for maximum durability and superior cooling. Mishimoto Lifetime Warranty. Direct-fit for all 2003-2005 chevrolet/GMC 6. 6l duramax lB7/LLY. 174% greater core volume than stock cooler & 192% greater external fin surface area over stock cooler. Cnc-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines.
BrandMishimoto #ad
ManufacturerMishimoto #ad
Height14 Inches
Length29 Inches
Width4 Inches
Part NumberMMTC-DMAX-03SL
ModelMMTC-DMAX-03SL
WarrantyLifetime Warranty

8. EVIL ENERGY

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EVIL ENERGY Fuel Rail Ported Fitting for 2004.5-2010 Chevrolet Silverado GMC Sierra 2004.5-2010 Duramax 6.6L LB7 LLY LBZ LMM Stainless Steel

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EVIL ENERGY #ad - Threads in perfectly and doesn't leak. Fit for 2004. 5 - 2010 chevrolet silverado 2500/3500 duramax and 2004. 5 - 2010 gmc sierra 2500/3500 Duramax 6. 6l diesel lly, lbz, lb7 and LMM motor. Adequate fuel flow is vital to producing maximum efficient / clean horsepower.

One or two fittings can be used simultaneously in left and right fuel rail. Application: compatible with many chevy and gmc models. Weld-free construction that gives fuel rail fitting better leakproofness. High quality 304 stainless steel increases available fuel flow volume from the pump to the fuel rail. Recommended to use some petroleum jelly to lubricate the fitting during installation. The fuel rail fittings benefit both fuel rails, since the driver side fuel rail feeds the passenger side.

Evil energy fuel rail fitting replace the restrictive stock fitting and helps maintain fuel rail pressure during heavy engine load situations. The duramax fuel rail fitting is constructed of stainless steel which is anti-oxidation, anti-corrosion and anti-rust. Easy to install. This fuel injection part reduces fuel pressure drops that are caused by the restriction of the stock fuel rail fitting.
BrandEVIL ENERGY #ad
ManufacturerSpeedwow Tuning #ad
Part NumberFS01169SR

9. G-PLUS

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Aluminum Performance Racing Radiator Replacement For Chevy Silverado GMC Sierra 2500HD 3500HD Duramax 6.6L 2001 2002 2003 2004 2005

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G-PLUS #ad - Made of high quality full T-6061 aluminum construction. For chevy silverado gmc sierra 2500hd 3500hd duramax 6. 6l 2001 2002 2003 2004 2005. Direct bolt-on OE fitment or replacement. Improves cooling by 35% to 45% temperature. Stronger and higher capacity for coolant than stock units.
BrandG-PLUS #ad
ManufacturerGplusmotor #ad
Height7.87 Inches
Length47.64 Inches
Weight29.39 Pounds
Width22.83 Inches
Part Number02ARA9401ASL
Warranty1 year warranty

10. PPE

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PPE PERFORMANCE TRANSMISSION COOLER FOR 2001 2002 2003 CHEVY GMC LB7/LLY & LBZ/LMM 124060000

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PPE #ad - Excess heat is the #1 killer of transmissions. For individuals who tow, race or simply run their diesel hard, know that proper cooling of your transmission fluid is one of the most important things that you can do to increase the life of your transmission.

2001-2003 allison-equipped gm hd vehicles 124060000 - Orange Clips. When the mainline pressure is increased with things such as a high-performance transmission kit, you end up with additional heat being generated, so we recommend a Performance Transmission Cooler in such applications. Increased surface area provides 60% more heat rejection - Factory-fit. Ppe’s performance transmission cooler is a direct bolt-on replacement part that lowers the fluid temperatures up to an additional 20 to 30 degrees over the stock unit.
BrandPPE #ad
ManufacturerPPE #ad
Height3 Inches
Length17 Inches
Weight7.6 Pounds
Width14 Inches
Part Number124060000
Model124060000