2001-2004 GM 2500HD/3500HD 6.6L LB Duramax Engine & Performance
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Mahle 54597/54598 Victor Reinz 1.05mm Thick Left & Right Head Gasket | 2001-2010 Silverado/Sierra 2500HD/3500HD 6.6L
- Price
- $220.64
Mishimoto MMCFK-F2D-03BL Blue Coolant Filter Kit | 2003-2007 Ford F250/F350 Powerstroke 6.0L
- Price
- $169.95
Merchant 97188896 Lower Valve Cover Gasket | 2001-2004 Silverado/Sierra 2500HD/3500HD 6.6L
- Price
- $56.72
Merchant 62G Glow Plug | 2001-2004 Silverado/Sierra 2500HD/3500HD 6.6L
- Price
- $29.93
Mahle HS54580 Head Set | 2001-2004 Silverado/Sierra 2500HD/3500HD 6.6L
- Sale price
- $250.71
- Regular price
- $565.70
ARP 100-9911 Ultra-Torque Fastener Assembly Lubricant (20 oz) | Universal
- Sale price
- $27.26
- Regular price
- $52.01
PPE 119100100 Fan Clutch Delete Nut | 2001-2022 Silverado/Sierra 2500HD/3500HD 6.6L
- Price
- $44.99
PPE 119000500 Engine Coolant Thermostat Housing | 2001-2007 Silverado/Sierra 2500HD/3500HD 6.6L
- Price
- $269.99
PPE 114000559 Engine Oil Filter Socket | 2001-2019 Silverado/Sierra 2500HD/3500HD 6.6L
- Price
- $35.99
Mishimoto MMOC-F HD Transmission Cooler w/ Fan | Universal
- Price
- $177.95
Merchant 10263 Oil Cooler Install Kit | 2001-2010 GMC/Chevrolet 2500HD/3500HD 6.6L
- Price
- $65.63
Edge 98005 CTS2 Pod Adapter | Universal
- Price
- $25.33
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Shop This Make By
The 6.6L Duramax LB7 under the hood of your 2001-2004 GM Sierra/Silverado 2500/3500 may be one of the best and most efficient engines out there, but even the toughest trucks have some power and performance waiting to be unleashed through various performance modifications. Here at Alligator Performance, we carry a selection of cold air intakes, tuners, fuel upgrades, and turbo upgrades to help you get the most out of your diesel engine. Many of these upgrades like the cold air intakes and fuel upgrades even help promote component longevity so you can enjoy long-lasting and consistent performance without compromise. After you've added a few engine upgrades to your custom build, be sure to check out our premium 2001-2004 GM 6.6L Duramax LLY Transmission Upgrades to compliment the increase in power you're throwing down! GM Duramax Fitments: 2001, 2002, 2003, 2004 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.
GM Duramax>2001-2004 6.6L LB7
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