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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Suncoast ALLISON CAT 0 REBUILD KIT (WITHOUT CONVERTER)
Regular price $1,595.00 USDSale price $1,595.00 USD Regular priceUnit price / per -
Suncoast "Super Drum" Reinforced Input Drum Assembly w/ Overrun Piston - 700R4 / 4L60E Except LS1 Engine
Regular price $405.17 USDSale price $405.17 USD Regular priceUnit price / per -
Suncoast Input Housing Support Kit - 700R4 / 4L60E
Regular price $116.08 USDSale price $116.08 USD Regular priceUnit price / per -
Suncoast Forward Clutch Hub - Billet Steel Alloy
Regular price $216.68 USDSale price $216.68 USD Regular priceUnit price / per -
Suncoast 300M Alloy Main Shaft w/ Rolled Splines
Regular price $534.48 USDSale price $534.48 USD Regular priceUnit price / per -
Suncoast Pro Street Automatic Transmission
Regular price $8,465.90 USDSale price $8,465.90 USD Regular priceUnit price / per -
Suncoast Street Performance Transmission, Automatic
Regular price $7,102.27 USDSale price $7,102.27 USD Regular priceUnit price / per -
Suncoast Pro Street / Competition Automatic Transmission
Regular price $9,829.55 USDSale price $9,829.55 USD Regular priceUnit price / per -
Suncoast ALLISON SERVICE MANUAL
Regular price $69.00 USDSale price $69.00 USD Regular priceUnit price / per -
Suncoast A1000 SERVICE KIT SHALLOW PAN (MOLDED PAN GASKET, FILTERS, 3 GALLONS OF FLUID)
Regular price $295.00 USDSale price $295.00 USD Regular priceUnit price / per -
Suncoast ALLISON TRANSGO 01-05 SHIFT KIT
Regular price $395.00 USDSale price $395.00 USD Regular priceUnit price / per -
Suncoast A1000 SERVICE KIT DEEP PAN (MOLDED PAN GASKET, FILTERS, 4 GALLONS OF FLUID)
Regular price $420.00 USDSale price $420.00 USD Regular priceUnit price / per -
Suncoast ALLISON PUMP HOUSING GASKET
Regular price $31.00 USDSale price $31.00 USD Regular priceUnit price / per -
Suncoast ALLISON LB7/LLY/LBZ T-CASE BRACE
Regular price $195.00 USDSale price $195.00 USD Regular priceUnit price / per -
Suncoast ALLISON PR SHIM W/OUT TOOL
Regular price $10.00 USDSale price $10.00 USD Regular priceUnit price / per -
Suncoast ALLISON PR SHIM WITH TOOL
Regular price $80.00 USDSale price $80.00 USD Regular priceUnit price / per -
Suncoast ALLISON 04-10 L/U BOOST VALVE
Regular price $89.00 USDSale price $89.00 USD Regular priceUnit price / per -
Suncoast ALLISON EXTENSION HOUSING GASKET
Regular price $25.00 USDSale price $25.00 USD Regular priceUnit price / per -
Suncoast ALLISON CASE HOUSING GASKET
Regular price $27.00 USDSale price $27.00 USD Regular priceUnit price / per -
Suncoast ALLISON SLEEVED C2 HUB
Regular price $755.00 USDSale price $755.00 USD Regular priceUnit price / per -
Suncoast ZERO BALANCE BILLET FLEXPLATE
Regular price $695.00 USDSale price $695.00 USD Regular priceUnit price / per -
Suncoast ALLISON LB7/LLY/LML BILLET FLEXPLATE
Regular price $659.00 USDSale price $659.00 USD Regular priceUnit price / per -
Suncoast ALLISON BILLET INTERMEDIATE SHAFT
Regular price $625.00 USDSale price $625.00 USD Regular priceUnit price / per -
Suncoast ALLISON BILLET INPUT SHAFT
Regular price $755.00 USDSale price $755.00 USD Regular priceUnit price / per -
Suncoast ALLISON BILLET C2 HUB
Regular price $625.00 USDSale price $625.00 USD Regular priceUnit price / per -
Suncoast ALLISON 01-10 PR SPRING KIT
Regular price $49.00 USDSale price $49.00 USD Regular priceUnit price / per -
Suncoast ALLISON F TRIM TCC SOLENOID
Regular price $168.00 USDSale price $168.00 USD Regular priceUnit price / per -
Suncoast Transmission Cooler Line Fitting - -6 AN To 9/16-18, Side And Cooler, Set Of 2
Regular price $56.12 USDSale price $56.12 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.



























