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GMC, (2004.5-2005), LLY, Cooling System

Shop Cooling System by Category

Mishimoto MMRA-LC-EG-YW Pre-Mixed Liquid Chill Coolant (Yellow)

Mishimoto MMRA-LC-EG-PR Pre-Mixed Liquid Chill Coolant (Purple)

Mishimoto MMRA-LC-FULLF Liquid Chill Synthetic Coolant

Mishimoto Pre-Mixed Liquid Chill Synthetic Coolant

Coolant 10

2001-2010 & 2017-2023 Duramax L5P Failed Coolant Bottle Sensor Fooler

WCFab WCF100472 Billet Aluminum Coolant Tank Cap, Clear Anodized (2001-2024 Duramax; 2004.5-2024 Cummins)

PPE 116454025 Coolant Overflow Tank (2001-2007 Duramax)

Mishimoto MMRT-DMAX-01 Wrinkle Black Aluminum Degas Tank (2001-2007 6.6L Duramax)

Merchant Automotive 10061 Coolant Tank Float Switch (2001-2010 6.6L Duramax)

Coolant Tanks 8

Fleece Performance Engineering FPE-DMAX-CBOP Billet Coolant Block Off Plate (2001-2025 6.6L Duramax)

WCFab WCF206-19 Low Coolant Level Sensor (2001-2010; 2017-2025 Duramax)

MAHLE C32062 Water Pump Gasket (2001-2005 6.6L Duramax)

Parts 44

Pumps 0

Radiator 2

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GMC, (2004.5-2005), LLY, Cooling System

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ACDelco (2)

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ACDelco (2) CSF (1) Fleece Performance Engineering (1) Hot Shot's Secret (3) Lucas Oil (1) Mahle (6) Merchant Automotive (8) Mishimoto Performance Parts (11) Pacific Performance Engineering (12) Performance Diesel Worx (1) Wehrli Custom Fabrication (8) XDP MFG (6)

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60 products

Hot Shot's Secret

Hot Shot's Secret 150K Mile Extended Life Green Coolant (1 Gal)

Sale price$16.99

Hot Shot's Secret

Hot Shot's Secret 150,000 Mile Heavy Duty Extended Life Yellow (1 Gal)

Sale price$16.99

Hot Shot's Secret

Hot Shot's Secret 750,000 Mile Heavy Duty Ultra Long Life Red (1 Gal)

Sale price$19.99

CSF 10551 AC Condenser (2001 - 2014 Duramax) - Southern Diesel Supply

CSF

CSF 10551 AC Condenser (2001-2014 6.6L Duramax)

Sale price$97.99

ACDelco

ACDelco 131-131 Rear Coolant Thermostat (2001-2019 Duramax)

Sale price$43.99

ACDelco

ACDelco 131-163 Front Coolant Thermostat (2001-2019 Duramax)

Sale price$51.99

WCFab WCF100642 LB7/LLY/LBZ Duramax Twin Turbo Coolant Tank Kit - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100642 LB7/LLY/LBZ Duramax Twin Turbo Coolant Tank Kit

Sale price$365.99

WCFab WCF100155 Billet Heater Core Firewall Fitting (2001 - 2023 Duramax) - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100155 Billet Heater Core Firewall Fitting (2001-2023 6.6L Duramax)

Sale price$42.99

Wehrli Custom Fabrication

WCFab WCF100543 Billet Aluminum Coolant Tank Cap, Black Anodized (2001-2024 Duramax; 2004.5-2024 Cummins)

Sale price$39.99

WCFab WCF100860 LB7 / LLY Duramax Upper Coolant Pipe - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100860 LB7 / LLY Duramax Upper Coolant Pipe

Sale price$143.99

WCFab WCF100645 LB7 / LLY / LBZ Duramax OEM Placement Coolant Tank Kit - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100645 LB7 / LLY / LBZ Duramax OEM Placement Coolant Tank Kit

Sale price$473.99

WCFab WCF100405 LB7/LLY Duramax Top Outlet Billet Thermostat Housing And Upper Coolant Pipe Kit - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100405 LB7/LLY Duramax Top Outlet Billet Thermostat Housing And Upper Coolant Pipe Kit

Sale price$474.99

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At Southern Diesel Supply, we are passionate about power, performance, and precision. Specializing in premium accessories for RAM, Chevrolet, GMC, and Ford, we provide truck owners with the best upgrades to enhance durability, style, and functionality.