2004.5–2005 LLY 6.6L Duramax Engines & Engine Parts

2004.5–2005 LLY 6.6L Duramax Engines & Engine Parts

Shop 2004.5–2005 LLY 6.6L Duramax engines and engine parts for Chevrolet Silverado and GMC Sierra HD applications. This collection is organized for engine repair, rebuilding, replacement, and related engine-component needs for the LLY platform.

Coverage varies by product. Review each listing for exact year, application, configuration, included components, core requirements, and warranty information before ordering.

38 products
2011-2016 6.6 LML Duramax Stock Long Block - Industrial Injection
2006-2007 6.6 LBZ Duramax Stock Long Block - Industrial Injection
Industrial Injection LLY Duramax Stock Long Block Engine (2004.5-2005) $9,79995
2011-2016 6.6L LML Duramax Premium Stock Plus Long Block - Industrial Injection
2011-2016 6.6L LML Duramax Premium Stock Plus Long Block - Industrial Injection
Industrial Injection LLY Duramax Premium Stock Plus Long Block Engine (2004.5-2005) $17,39995
2004.5-2005 6.6L LLY Duramax Race Long Block - Industrial Injection
2004.5-2005 6.6L LLY Duramax Race Long Block - Industrial Injection
Industrial Injection LLY Duramax Stage 2 Long Block Engine (2004.5-2005) $27,89995
2011-2016 6.6L LML Duramax Premium Stock Plus Short Block - Industrial Injection
2011-2016 6.6L LML Duramax Premium Stock Plus Short Block - Industrial Injection
Industrial Injection LLY Duramax Premium Stock Plus Short Block Engine (2004.5-2005) $12,59995
2004.5-2005 6.6L LLY Duramax Race Short Block - Industrial Injection
2004.5-2005 6.6L LLY Duramax Race Short Block - Industrial Injection
Industrial Injection LLY Duramax Stage 2 Short Block Engine (2004.5-2005) $21,99995
2004.5-2005 LLY Stock New Duramax Heads - Industrial Injection
Industrial Injection LLY Duramax Stock Remanufactured Heads (2004.5-2005) - Industrial Injection
Industrial Injection 2004.5-2005 LLY Duramax Premium Stock Plus Cylinder Heads (RH & LH Set) $1,74995
2004.5-2005 LLY Stock New Duramax Heads - Industrial Injection
2004.5-2005 LLY Stock New Duramax Heads - Industrial Injection
Industrial Injection 2004.5-2005 LLY Duramax NEW Premium Stock Plus Cylinder Heads (RH & LH Set) $2,39995
Industrial Injection 2004.5-2005 LLY Duramax Ported & Polished Cylinder Heads (RH & LH Set) - Industrial Injection
Industrial Injection LLY Duramax Race Heads (2004.5-2005) - Industrial Injection
Industrial Injection 2004.5-2005 LLY Duramax Ported & Polished Cylinder Heads (RH & LH Set) $3,99595
2001-2024 6.6L Duramax LB7-L5P X-Series Piston Ring Kit $36995
2001-2016 6.6L Duramax LB7-LML X-Series Piston Kit from $1,89995
Wagler Duramax Street Fighter Connecting Rod - Industrial Injection
Wagler Duramax Street Fighter Connecting Rod - Industrial Injection
Wagler Duramax Street Fighter Connecting Rod $1,95000
Industrial Injection Duramax Stage 1 Performance Camshaft w/ Key - Industrial Injection
Industrial Injection Duramax Stage 1 Performance Camshaft w/ Key - Industrial Injection
Industrial Injection Duramax Camshafts from $79295
Industrial Injection Duramax Alternate Firing Billet Stage 1 Camshaft W/Key - Industrial Injection
Industrial Injection Duramax Alternate Firing Billet Stage 1 Camshaft W/Key - Industrial Injection
Industrial Injection Duramax Alternate Firing Billet Camshafts $1,81495
6.6L Duramax 130lb. Valve Spring Kit - Industrial Injection
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Industrial Industrial 130lb. 6.6L Duramax Valve Spring Kit (2001-2024) $90095
Duramax 6.6L (2001-2016) ARP2000 Head Stud Kit - Industrial Injection
Duramax 6.6L (2001-2016) ARP2000 Head Stud Kit - Industrial Injection
Duramax 6.6L (2001-2016) ARP2000 Head Stud Kit $62500
Duramax Block To Cylinder Head Dowel Pin - Industrial Injection
Duramax Block To Cylinder Head Dowel Pin $585
DRIVEN Conventional Break In Motor Oil 15W-50 (1 Quart) - Industrial Injection
DRIVEN Conventional Break In Motor Oil 15W-50 (1 Quart) - Industrial Injection
DRIVEN Conventional Break In Motor Oil 15W-50 (1 Quart) $1800
Cam And Crank Key Kit - Industrial Injection
Duramax Cam And Crank Key Kit $8895
6.6L Duramax Stage 1 Pushrod - Industrial Injection
6.6L Duramax Stage 1 Pushrod - Industrial Injection
6.6L Duramax Stage 1 Pushrod $2995
Duramax Front Cover Dowel - Industrial Injection
Duramax Front Cover Dowel $695
Head Gasket 1.05mm Grade C Right 2001-2010 6.6L Duramax - Industrial Injection
Head Gasket 1.05mm Grade C Right 2001-2016 6.6L Duramax $4683
Head Gasket 1.05mm Grade C Left 2001-2010 6.6L Duramax - Industrial Injection
Head Gasket 1.05mm Grade C Left 2001-2016 6.6L Duramax $4683
2001-2010 Duramax Stock Rod Bearing (STD) - Industrial Injection
2001-2010 Duramax Stock Rod Bearing (STD) $1540
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Duramax Piston Ring Set from $25466
2001-2016 Duramax Performance Rod Bearings - Industrial Injection
2001-2016 Duramax H Series Coated Rod Bearing Set from $54895
2001-2010 Duramax H Series Rod Bearing (Std) - Industrial Injection
2001-2010 Duramax H Series Rod Bearing (Std) - Industrial Injection
2001-2010 Duramax H Series Rod Bearing (Std) $3310
Duramax Thrust Washer OE - Industrial Injection
Duramax Thrust Washer OE $1449
6.6L Duramax Stage 3 Pushrod - Industrial Injection
6.6L Duramax Stage 3 Pushrod - Industrial Injection
6.6L Duramax Stage 2 Pushrod $3895
2001-2016 Duramax Hx Series Main Bearings (Std +.001) - Industrial Injection
2001-2016 Duramax Hx Series Main Bearings (Std +.001) $14657
Duramax 6.6L (2001-2016) Custom Age 625+ARP Head Stud Kit - Industrial Injection
Duramax 6.6L (2001-2016) Custom Age 625+ARP Head Stud Kit $1,72731
2001-2016 Duramax Performance Main Bearings - Industrial Injection
2001-2016 Duramax H Series Coated Main Bearings from $39095
14mm Duramax Gorilla Girdle (LB7,LLY,LBZ,LMM) - Industrial Injection
14mm Duramax Gorilla Girdle (LB7,LLY,LBZ,LMM) - Industrial Injection
14mm Duramax Gorilla Girdle (LB7,LLY,LBZ,LMM) $1,63195
2001-2010 Duramax HX Series Rod Bearing (Std) - Industrial Injection
2001-2010 Duramax HX Series Rod Bearing (Std) - Industrial Injection
2001-2010 Duramax HX Series Rod Bearing (Std) $3114
2001-2016 Duramax H Series Main Bearings (Std) - Industrial Injection
2001-2016 Duramax H Series Main Bearings (Std) $14971
2001-2016 Duramax Stock Main Bearings (std) - Industrial Injection
2001-2016 Duramax Stock Main Bearings (std) $8243
2001-2005 Duramax LB7/LLY OEM Water Pump w/ Housing - Industrial Injection
2001-2005 Duramax LB7/LLY OEM Water Pump w/o Housing $45321
2004.5-2007 Duramax Lower Valve Cover Dowel - Industrial Injection
2004.5-2007 Duramax Lower Valve Cover Dowel - Industrial Injection
2004.5-2007 Duramax Lower Valve Cover Dowel $695
2001-2016 Duramax Rocker Arm Spacer Kit - Industrial Injection
2001-2016 Duramax Rocker Arm Spacer Kit - Industrial Injection
2001-2016 Duramax Rocker Arm Spacer Kit $23695

Shop 2004.5–2005 LLY 6.6L Duramax Engines & Engine Parts

Finding the correct engine component starts with the exact Duramax generation. This collection is specific to the 2004.5–2005 LLY Duramax. Verify the exact model year and current component information where fitment can vary.

Engine products can differ by application, build configuration, and what is included with the assembly. Use the product fitment and specifications to confirm the correct option, especially when comparing complete engines, short blocks, long blocks, cylinder heads, internal components, and related hardware.

If a product listing does not provide enough information to verify your application, contact Industrial Injection before ordering.

Frequently Asked Questions

Will every engine part in this collection fit my 2004.5–2005 LLY Duramax?

No. This collection narrows products to the 2004.5–2005 LLY platform, but exact fitment can still vary by model year, engine configuration, and the specific component. Review the individual product listing before ordering.

What types of engine products may be included here?

Depending on current inventory, this collection may include complete engine options, short blocks, long blocks, cylinder heads, internal engine parts, and related components. Check each listing for exactly what is included.

What should I verify before ordering a Duramax engine or engine part?

Confirm the truck year, Duramax engine code, the component you are replacing, and any part or casting numbers that apply. For complete assemblies, also review included components, core requirements, and warranty details.

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