2006-2007 GM 2500HD/3500HD 6.6L LBZ Duramax Radiators & Cooling Upgrades

Keep your 2006-2007 Duramax 6.6L engine running at optimal temperatures to maintain peak performance. With the high-power output of your 6.6L, it's crucial to invest in effective cooling upgrades to ensure long-term reliability. We offer a range of options, including A/C lines, upgraded coolant tanks, radiator necks, coolant bypass kits, and coolant pipes. Our selection of cooling components will help your diesel engine handle even the toughest challenges. If you're pushing your engine to the limit, make sure it gets the cooling support it needs with our top-tier upgrade kits! Pair your Radiator & Cooling upgrades with our selection of Air Intake Upgrades! GM Duramax Fitments: 2006, 2007 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>2006-2007 6.6L LBZ
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PPE 114020000 PCV Crankcase Breather Repair Fitting Set | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
5.0
PPE 114020000 PCV Crankcase Breather Repair Fitting Set | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 114020000 PCV Crankcase Breather Repair Fitting Set | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$26.99
Mishimoto MMTS-CHV-01DL Low-Temperature Thermostats | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Mishimoto MMTS-CHV-01DL Low-Temperature Thermostats | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Mishimoto

Mishimoto MMTS-CHV-01DL Low-Temperature Thermostats | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$90.95
Fleece FPE-DMAX-CBOP Billet Coolant Block Off Plate | 2001-2017 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
5.0
Fleece FPE-DMAX-CBOP Billet Coolant Block Off Plate | 2001-2017 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Fleece Performance Products

Fleece FPE-DMAX-CBOP Billet Coolant Block Off Plate | 2001-2017 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$55
Wehrli 100155 Billet Coolant Heater Core Firewall Fitting | 1999-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100155 Billet Coolant Heater Core Firewall Fitting | 1999-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100155 Billet Coolant Heater Core Firewall Fitting | 1999-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$39.77
Merchant 10543 Water Pump Kit | 2006-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Merchant 10543 Water Pump Kit | 2006-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 10543 Water Pump Kit | 2006-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$249.33
Merchant 19210615 Engine Oil Cooler Assembly | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Merchant 19210615 Engine Oil Cooler Assembly | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 19210615 Engine Oil Cooler Assembly | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$799.73
Mishimoto MMRAD-DMAX-06 Aluminum Performance Radiator | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Mishimoto MMRAD-DMAX-06 Aluminum Performance Radiator | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Mishimoto

Mishimoto MMRAD-DMAX-06 Aluminum Performance Radiator | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$932.95
Merchant 10406 Automotive Lower Radiator Pipe O-Rings | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Merchant 10406 Automotive Lower Radiator Pipe O-Rings | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 10406 Automotive Lower Radiator Pipe O-Rings | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$9.72
PPE 119021007 EGR to CAB Coolant Hose | 2004.5-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 119021007 EGR to CAB Coolant Hose | 2004.5-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 119021007 EGR to CAB Coolant Hose | 2004.5-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$12.14
PPE 119020092 2 inch OEM Coolant Hose Drain 1/4 inch Bung | Universal
PPE 119020092 2 inch OEM Coolant Hose Drain 1/4 inch Bung | Universal

PPE

PPE 119020092 2 inch OEM Coolant Hose Drain 1/4 inch Bung | Universal

Price
$26.99
PPE 119020009 Stainless Steel Heater Hose Connector | 1999-2014 GM Silverado/Sierra 2500HD/3500HD
PPE 119020009 Stainless Steel Heater Hose Connector | 1999-2014 GM Silverado/Sierra 2500HD/3500HD

PPE

PPE 119020009 Stainless Steel Heater Hose Connector | 1999-2014 GM Silverado/Sierra 2500HD/3500HD

Price
$19.79
PPE 119021200 Upper & Lower Coolant Hose Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 119021200 Upper & Lower Coolant Hose Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 119021200 Upper & Lower Coolant Hose Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$269.99

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2006-2007 6.6L Silverado & Sierra 2500HD/3500HD

THE GARAGE

The Garage

Welcome to The Garage – your one-stop shop for all your car care and maintenance needs. From premium oils and filters to top-notch car care products, we have everything you need to keep your vehicle running smoothly and looking its best. Whether you're a DIY enthusiast or a professional mechanic, our carefully curated selection of high-quality products will help you take care of your ride like never before.