Collection: 2004.5-2005 6.6L LLY Duramax Transmission
2004.5-2005 6.6L LLY Duramax Transmission Parts
Enhance the performance and durability of your 2004.5-2005 6.6L LLY Duramax with our premium transmission parts. Designed to improve shifting precision, increase towing capacity, and extend transmission life, these components are ideal for those looking to push their truck to the limit. Whether you're...
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PPE 2001-2019 GM 6.6L Duramax Premium High-Efficiency Spin-On Transmission Fluid Filter
Regular price $17.99 USDSale price $17.99 USD Regular priceUnit price / per$19.99 USDSale -
Suncoast Reid 4l80E TAILHOUSING (ROLLERIZED)
Regular price $359.00 USDSale price $359.00 USD Regular priceUnit price / per -
Fleece Performance FPE-TL-LB7-LLY Allison Transmission Cooler Lines for 2001-2005 (LB7-LLY)
Regular price $269.00 USDSale price $269.00 USD Regular priceUnit price / per -
Suncoast ALLISON B TRIM SOLENOID LB7/LLY 01-05
Regular price $185.00 USDSale price $185.00 USD Regular priceUnit price / per -
SunCoast Allison Shallow Filter Lock
Regular price $30.00 USDSale price $30.00 USD Regular priceUnit price / per -
PPE 2001-2019 GM 6.6L Duramax w/ Allison 1000/2000/2400 Transmission Heavy-Duty Cast Aluminum Standard-Depth Transmission Pan
Regular price From $242.99 USDSale price From $242.99 USD Regular priceUnit price / per$269.99 USDSale -
ATS AUXILIARY TRANSMISSION COOLER KIT WITH 3/8 INCH LINES
Regular price $569.99 USDSale price $569.99 USD Regular priceUnit price / per -
Fleece Performance 5 Speed Allison Kodiak/TopKick TapShifter FPE-TAPSHIFTER-KDTK
Regular price $349.00 USDSale price $349.00 USD Regular priceUnit price / per -
PPE 2001-2016 GM 6.6L Duramax - Bolt Kit for Flywheel Flexplate (8pc 12pt Head)
Regular price $71.99 USDSale price $71.99 USD Regular priceUnit price / per -
Randy's Transmission 2001 - 2005 GM DURAMAX FLEXPLATE ALLISON 1000
Regular price $675.00 USDSale price $675.00 USD Regular priceUnit price / per -
Suncoast ALLISON 1000/2000 OVERHAUL KIT
Regular price $415.00 USDSale price $415.00 USD Regular priceUnit price / per -
Suncoast SFI 4.1 COVERS GEARTRAIN
Regular price $775.00 USDSale price $775.00 USD Regular priceUnit price / per -
Suncoast 4L80E Power Tow Kit
Regular price $265.00 USDSale price $265.00 USD Regular priceUnit price / per -
Suncoast GM 4L80E, 4L85E Deep 1.5 Quarts Over as cast
Regular price $465.00 USDSale price $465.00 USD Regular priceUnit price / per -
Suncoast GM 4L80E, 4L85E Deep 1.5 Quarts Over Stock (Black Powder Coat)
Regular price $505.00 USDSale price $505.00 USD Regular priceUnit price / per -
Suncoast GM 4L80E, 4L85E (97 up) Deep Pan 3.25 quarts over stock Black Powder Coat
Regular price $505.00 USDSale price $505.00 USD Regular priceUnit price / per -
Suncoast 4L80E Billet Overdrive Planet
Regular price $795.00 USDSale price $795.00 USD Regular priceUnit price / per -
Suncoast 4L80E INPUT SHAFT
Regular price $750.00 USDSale price $750.00 USD Regular priceUnit price / per -
Suncoast 4L80E Billet Clutch Hub
Regular price $250.00 USDSale price $250.00 USD Regular priceUnit price / per -
Suncoast TH400/4L80E Aluminum Direct Drum & Extra Large Sprag
Regular price $1,595.00 USDSale price $1,595.00 USD Regular priceUnit price / per -
Suncoast ALLISON 1000 MAG-HYTEC PAN
Regular price $405.00 USDSale price $405.00 USD Regular priceUnit price / per -
Suncoast 4l80E TAILHOUSING (BUSHING STYLE)
Regular price $316.00 USDSale price $316.00 USD Regular priceUnit price / per -
Suncoast Reid Super 80® Transmission Case
Regular price $2,350.00 USDSale price $2,350.00 USD Regular priceUnit price / per -
Suncoast Rubber Clutch Separator For ~.080" Thick Frictions- Pack of 60
Regular price $45.17 USDSale price $45.17 USD Regular priceUnit price / per -
Suncoast Super Servo - Largest Apply Surface Available
Regular price $387.50 USDSale price $387.50 USD Regular priceUnit price / per -
Suncoast ALLISON CAT 2 600 HP REBUILD KIT (WITHOUT CONVERTER) (WITH FLEXPLATE)
Regular price $6,295.00 USDSale price $6,295.00 USD Regular priceUnit price / per -
Suncoast ALLISON CAT 1 500 HP REBUILD KIT (WITHOUT CONVERTER)
Regular price $3,095.00 USDSale price $3,095.00 USD Regular priceUnit price / per -
Suncoast ALLISON CAT 1 500 HP REBUILD KIT (WITHOUT CONVERTER)
Regular price $3,095.00 USDSale price $3,095.00 USD Regular priceUnit price / per
2004.5-2005 6.6L LLY Duramax Transmission Parts
Enhance the performance and durability of your 2004.5-2005 6.6L LLY Duramax with our premium transmission parts. Designed to improve shifting precision, increase towing capacity, and extend transmission life, these components are ideal for those looking to push their truck to the limit. Whether you're hauling heavy loads, off-roading, or just enhancing your driving experience, our high-performance transmission parts are built to withstand extreme conditions.
High-Performance Transmission Parts for 6.6L LLY Duramax
Our transmission parts for the 2004.5-2005 6.6L LLY Duramax are built to provide long-lasting performance and reliability. These upgrades include heavy-duty torque converters, transmission cooler kits, billet transmission pans, shift kits, and more. Each component is designed to handle the increased power and torque generated by the Duramax engine, providing improved shifting performance, better heat management, and greater overall durability.
Why Choose Our Transmission Parts?
Upgrading your 2004.5-2005 6.6L LLY Duramax transmission with our high-performance parts ensures that your transmission can handle heavy-duty applications with ease. Whether you're towing, racing, or off-roading, these parts enhance your transmission’s capability and longevity. Our parts are designed to reduce wear and tear, prevent overheating, and maintain smoother shifting, providing an overall better driving experience.
Key Features:
- Improved Shifting Performance: Shift kits and components for smoother and more responsive shifts.
- Enhanced Durability: Heavy-duty parts designed to handle higher power and extreme conditions.
- Better Heat Management: Transmission cooler kits and billet pans to prevent overheating and extend transmission life.






















