2001-2004 GM 2500HD/3500HD 6.6L LB Duramax Engine & Performance
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Gator Fasteners HSK66 Head Stud Kit | 2001-2016 Silverado/Sierra 2500HD/3500HD 6.6L
- Sale price
- $524.99
- Regular price
- $595.99
ARP 230-6301 Rod Bolt Kit | 2001-2010 Silverado/Sierra 2500HD/3500HD 6.6L
- Sale price
- $217.92
- Regular price
- $415.64
PPE 119021100 Red Upper & Lower Coolant Hose Kit | 2001-2005 Silverado/Sierra 2500HD/3500HD 6.6L
- Price
- $269.99
PPE 119020100 Upper & Lower Black Coolant Hose Kit | 2001-2005 Silverado/Sierra 2500HD/3500HD 6.6L
- Price
- $269.99
PPE 114052020 Black Deep Engine Oil Pan | 2001-2010 Silverado/Sierra 2500HD/3500HD 6.6L
- Price
- $278.99
Wagler C6664 Push Rods | 2001-2016 Silverado/Sierra 2500HD/3500HD 6.6L
- Price
- $400
ARP 100-7532 Hex Head Valve Cover Bolt Kit | 2001-2004 Silverado/Sierra 2500HD/3500HD 6.6L
- Sale price
- $74.38
- Regular price
- $141.86
HP Tuners M03-000-04 MPVI3 OBII Scanning and Calibration Tool w/ 4 Universal Credits | Semi-Universal
- Price
- $589.95
HP Tuners UC-0000 MPVI3 Single Credit | Universal
- Price
- $47.49
Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications
- Price
- $499.95
Merchant 10251 Automotive Glow Plug Nuts (Set of 8) | 2001-2016 Silverado/Sierra 2500HD/3500HD 6.6L
- Price
- $4.72
PPE 114052201 12mm Billet Hardened Stainless Steel Magnetic Oil Drain Plug for OEM Engine Oil Pan | 2001-2016 Silverado/Sierra 2500HD/3500HD 6.6L
- Price
- $17.99
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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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