Collection: 2004.5-2005 6.6L LLY Duramax Engine Parts & Accessories
2004.5-2005 6.6L LLY Duramax Engine Parts & Accessories
Maximize the performance and longevity of your 2004.5-2005 6.6L LLY Duramax with high-quality engine components designed for durability and enhanced performance. Whether you’re upgrading for increased horsepower, improved fuel efficiency, or better overall engine reliability, our selection of...
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PPE 2001-2005 GM 6.6L Duramax Oil Centrifuge Filtration Kit (BUILT TO ORDER)
Regular price $449.99 USDSale price $449.99 USD Regular priceUnit price / per$499.99 USDSale -
PPE 2001-2024 GM 6.6L Duramax Viton O-Ring For Oil Fill Cap
Regular price $5.39 USDSale price $5.39 USD Regular priceUnit price / per$5.99 USDSale -
PPE 2001-2016 GM 6.6L Duramax Coolant Tube Kit for Internal Oil Cooler Delete
Regular price $179.99 USDSale price $179.99 USD Regular priceUnit price / per$199.99 USDSale -
PPE 2001-2016 GM 6.6L Duramax Internal Oil Cooler Delete Kit GM Duramax
Regular price $269.99 USDSale price $269.99 USD Regular priceUnit price / per$299.99 USDSale -
PPE 2001-2019 GM 6.6L Duramax Engine Oil Filter - MicroPure Extreme-Performance - Featuring TorqSTOP Technology
Regular price $35.99 USDSale price $35.99 USD Regular priceUnit price / per$39.99 USDSale -
PPE 2001-2019 GM 6.6L Duramax Hand Wrench for PPE Premium High-Efficiency Engine Oil Filters
Regular price $17.99 USDSale price $17.99 USD Regular priceUnit price / per$19.99 USDSale -
PPE 2002-2010 Duramax w/ PPE Dual Fueler, or 2002-2005 Stock Dual Alternator (105A) No Vacuum Pump - High-Performance Heavy-Duty Serpentine Belt
Regular price $44.99 USDSale price $44.99 USD Regular priceUnit price / per$49.99 USDSale -
PPE 2002-2005 GM 6.6L Duramax Single Alternator (130A) w/ Vacuum Pump, 2011-2014, 2017-2019 Duramax Single Alternator (125A) - High-Performance Heavy-Duty Serpentine Belt
Regular price $49.49 USDSale price $49.49 USD Regular priceUnit price / per$54.99 USDSale -
PPE 2002-2005 GM 6.6L Duramax Single Alternator (105A) No Vacuum Pump - High-Performance Heavy-Duty Serpentine Belt
Regular price $53.99 USDSale price $53.99 USD Regular priceUnit price / per$59.99 USDSale -
PPE 2001-2010 GM 6.6L Duramax Idler Pulley 3.0" OD OEM Size
Regular price $47.69 USDSale price $47.69 USD Regular priceUnit price / per$39.99 USD -
PPE 2002-2010 GM 6.6L Duramax Belt Tensioner
Regular price $161.99 USDSale price $161.99 USD Regular priceUnit price / per$179.99 USDSale -
PPE 2001-2016 GM 6.6L Duramax 7Y-Spoke Style Billet Aluminum Pulley Wheel
Regular price $179.99 USDSale price $179.99 USD Regular priceUnit price / per$199.99 USDSale -
PPE GM 6.6L Duramax Dual Fueler Idler Pulley 6.6L (4" Diameter)
Regular price $31.49 USDSale price $31.49 USD Regular priceUnit price / per$34.99 USDSale -
PPE O-ring for CP3 bracket to block
Regular price $13.49 USDSale price $13.49 USD Regular priceUnit price / per$14.99 USDSale -
PPE 2001-2016 GM 6.6L Duramax Valve and Spring Kit
Regular price $809.99 USDSale price $809.99 USD Regular priceUnit price / per$899.99 USDSale -
PPE 2001-2016 GM 6.6L Duramax Valve Springs, Retainers, and Keepers Complete Kit
Regular price $539.99 USDSale price $539.99 USD Regular priceUnit price / per$599.99 USDSale -
PPE 2001-2010 GM 6.6L Duramax Engine Mount Kit 50 Hardness
Regular price $269.99 USDSale price $269.99 USD Regular priceUnit price / per$299.99 USDSale -
PPE 2001-2010 GM 6.6L Duramax PPE High-Capacity Cast Aluminum Engine Oil Pan
Regular price $260.99 USDSale price $260.99 USD Regular priceUnit price / per$289.99 USDSale -
PPE 2001-2010 GM 6.6L Duramax PPE High-Capacity Cast Aluminum Engine Oil Pan
Regular price $278.99 USDSale price $278.99 USD Regular priceUnit price / per$309.99 USDSale -
PPE 114052001 14mm Billet Hardened Stainless Steel Neodymium Magnetic Drain Plug
Regular price $17.99 USDSale price $17.99 USD Regular priceUnit price / per$19.99 USDSale -
PPE 2001 - 2016 6.6L GM Duramax Billet Aluminum Engine Oil Filler Cap
Regular price $31.49 USDSale price $31.49 USD Regular priceUnit price / per$34.99 USDSale -
PPE 2001-2019 GM 6.6L Duramax Engine Oil Filter - MicroPure Extreme-Performance - Featuring TorqSTOP Technology
Regular price $35.99 USDSale price $35.99 USD Regular priceUnit price / per -
Gator Fasteners 2001-10 Chevy/GMC 6.6L Duramax Gator Heavy Duty Rod Bolt Kit RBK66
Regular price $207.89 USDSale price $207.89 USD Regular priceUnit price / per$262.49 USDSale -
Gator Fasteners 2001-05 Chevy/GMC 6.6L LB7 LLY Duramax Gator Heavy Duty Main Stud Kit MSK667Y
Regular price $232.64 USDSale price $232.64 USD Regular priceUnit price / per$299.24 USDSale -
Gator Fasteners 2001-24 Chevy/GMC 6.6L Duramax Gator Heavy Duty Harmonic Damper Bolt HDB66
Regular price $29.69 USDSale price $29.69 USD Regular priceUnit price / per$41.99 USDSale -
Fleece Performance 3/8 Inch Billet Aluminum Universal Block Off Plug FPE-34070
Regular price $6.47 USDSale price $6.47 USD Regular priceUnit price / per -
Fleece Performance 1/2 Inch Billet Aluminum Universal Block Off Plug FPE-34071
Regular price $7.42 USDSale price $7.42 USD Regular priceUnit price / per -
Fleece Performance 5/8 Inch Billet Aluminum Universal Block Off Plug FPE-34139
Regular price $8.37 USDSale price $8.37 USD Regular priceUnit price / per
2004.5-2005 6.6L LLY Duramax Engine Parts & Accessories
Maximize the performance and longevity of your 2004.5-2005 6.6L LLY Duramax with high-quality engine components designed for durability and enhanced performance. Whether you’re upgrading for increased horsepower, improved fuel efficiency, or better overall engine reliability, our selection of engine parts has everything you need. From intake manifolds to camshafts and gaskets, each part is engineered to deliver exceptional performance and reliability. Shop 2004.5-2005 6.6L LLY Duramax Engine Parts & Accessories
High-Performance Engine Parts for 6.6L LLY Duramax
Our engine components for the 2004.5-2005 6.6L LLY Duramax are built to withstand high power outputs and demanding driving conditions. From replacement parts to performance upgrades, our products are designed to optimize engine efficiency, improve combustion, and increase power. These parts are essential for anyone looking to maintain or enhance the performance of their Duramax engine.
Why Choose Our Engine Components?
Upgrading your engine components is a great way to unlock your truck’s full potential. Whether you're adding power, improving fuel economy, or boosting overall performance, our parts are engineered for longevity and optimal performance. Designed for Duramax owners who demand the best, these components provide exceptional reliability and performance.
Key Features:
- Enhanced Power & Efficiency: Improves horsepower, torque, and overall engine efficiency.
- Durability: Built to withstand high temperatures and demanding conditions.
- Improved Performance: Optimizes engine operation for better throttle response and overall driving experience.






