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NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

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GMC, (2024-present), L5P, Cooling System

Shop Cooling System by Category

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

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

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

Lucas Oil 10640 Super Coolant

Mishimoto MMRA-LC Liquid Chill Radiator Coolant Additive

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

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

WCFab WCF100268 OEM Placement Coolant Tank Kit (2020-2025 Duramax)

WCFab WCF100224 L5P Duramax Auxiliary Coolant Tank Kit (2020-2025 Duramax)

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

Coolant Tanks 5

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)

WCFab WCF100541 Upper Coolant Pipe Kit (2020-2025 Duramax)

WCFab WCF100188 Thermostat Housing (2017-2025 Duramax)

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

XDP XD679 XTRA Cool Water Pump (With Housing) (2017-2025 Duramax)

XDP XD678 XTRA Cool Water Pump (Pump Only) (2017-2025 Duramax)

CSF 3928 OEM Style Replacement Radiator (2020-2026 6.6L Duramax, Primary Radiator)

CSF 3938 OEM Style Replacement Radiator (2020-2026 6.6L Duramax Auxiliary Radiator)

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GMC, (2024-present), L5P, Cooling System

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Hot Shot's Secret (3)

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Mishimoto Performance Parts (6)

Pacific Performance Engineering (4)

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CSF (2) Fleece Performance Engineering (1) Hot Shot's Secret (3) Lucas Oil (1) Mahle (3) Merchant Automotive (1) Mishimoto Performance Parts (6) Pacific Performance Engineering (4) Wehrli Custom Fabrication (7) XDP MFG (3)

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31 products

Fleece FPE - DMAX - CBOP Duramax Billet Coolant Block Off Plate (2001 - 2025 Duramax) - Southern Diesel Supply

Fleece FPE - DMAX - CBOP Duramax Billet Coolant Block Off Plate (2001 - 2025 Duramax) - Southern Diesel Supply

Fleece Performance Engineering

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

Sale price$58.99

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

Wehrli Custom Fabrication

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

Sale price$49.99

WCFab WCF100541 Upper Coolant Pipe Kit (2020 - 2025 Duramax) - Southern Diesel Supply

WCFab WCF100541 Upper Coolant Pipe Kit (2020 - 2025 Duramax) - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100541 Upper Coolant Pipe Kit (2020-2025 Duramax)

Sale price$168.99

WCFab WCF100188 Thermostat Housing (2017 - 2025 Duramax) - Southern Diesel Supply

WCFab WCF100188 Thermostat Housing (2017 - 2025 Duramax) - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100188 Thermostat Housing (2017-2025 Duramax)

Sale price$179.99

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

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

Wehrli Custom Fabrication

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

Sale price$39.99

WCFab WCF100268 OEM Placement Coolant Tank Kit (2020 - 2025 Duramax) - Southern Diesel Supply

WCFab WCF100268 OEM Placement Coolant Tank Kit (2020 - 2025 Duramax) - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100268 OEM Placement Coolant Tank Kit (2020-2025 Duramax)

Sale price$525.99

WCFab WCF100224 L5P Duramax Auxiliary Coolant Tank Kit (2020 - 2025 Duramax) - Southern Diesel Supply

WCFab WCF100224 L5P Duramax Auxiliary Coolant Tank Kit (2020 - 2025 Duramax) - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100224 L5P Duramax Auxiliary Coolant Tank Kit (2020-2025 Duramax)

Sale price$239.99

CSF 3928 OEM Style Replacement Radiator (2020 - 2023 Duramax, Primary Radiator) - Southern Diesel Supply

CSF 3928 OEM Style Replacement Radiator (2020-2026 6.6L Duramax, Primary Radiator)

Sale price$403.99

CSF 3938 OEM Style Replacement Radiator (2020 - 2021 Duramax Auxiliary Radiator) - Southern Diesel Supply

CSF 3938 OEM Style Replacement Radiator (2020-2026 6.6L Duramax Auxiliary Radiator)

Sale price$109.99

PPE 114002700 Fuel Coolant Pump Relocation Kit (2020 - 2026 Duramax) - Southern Diesel Supply

PPE 114002700 Fuel Coolant Pump Relocation Kit (2020 - 2026 Duramax) - Southern Diesel Supply

Pacific Performance Engineering

PPE 114002700 Fuel Coolant Pump Relocation Kit (2020-2026 Duramax)

Sale price$35.99

PPE 119000803 Flywheel Housing Cover Coolant Block - Off Plate Gasket (2001 - 2026 Duramax) - Southern Diesel Supply

PPE 119000803 Flywheel Housing Cover Coolant Block - Off Plate Gasket (2001 - 2026 Duramax) - Southern Diesel Supply

Pacific Performance Engineering

PPE 119000803 Flywheel Housing Cover Coolant Block-Off Plate Gasket (2001-2026 Duramax)

Sale price$4.99

PPE 119030100 T304 Stainless Steel Coolant Tube (2001 - 2026 Duramax) - Southern Diesel Supply

PPE 119030100 T304 Stainless Steel Coolant Tube (2001 - 2026 Duramax) - Southern Diesel Supply

Pacific Performance Engineering

PPE 119030100 T304 Stainless Steel Coolant Tube (2001-2026 Duramax)

Sale price$197.99

PPE 119000820 Black Coolant Block - Off Plate (2001 - 2026 Duramax) - Southern Diesel Supply

PPE 119000820 Black Coolant Block - Off Plate (2001 - 2026 Duramax) - Southern Diesel Supply

Pacific Performance Engineering

PPE 119000820 Black Coolant Block-Off Plate (2001-2026 Duramax)

Sale price$53.99

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

Wehrli Custom Fabrication

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

Sale price$39.99

MAHLE GS34037 Water Pump Gasket (2017 - 2020 Duramax) - Southern Diesel Supply

MAHLE GS34037 Water Pump Gasket (2017-2020 6.6L Duramax)

Sale price$25.99

MAHLE C33756 Water Pump Outlet Pipe Gasket (2017 - 2020 Duramax) - Southern Diesel Supply

MAHLE C33756 Water Pump Outlet Pipe Gasket (2017-2020 Duramax)

Sale price$3.99

MAHLE C33755 Thermostat Bypass Pipe Gasket (2017 - 2020 Duramax) - Southern Diesel Supply

MAHLE C33755 Thermostat Bypass Pipe Gasket (2017-2020 6.6L Duramax)

Sale price$3.99

Merchant Automotive 10089 Billet Coolant Block - Off Plate (2001 - 2025 Duramax) - Southern Diesel Supply

Merchant Automotive

Merchant Automotive 10089 Billet Coolant Block-Off Plate (2001-2025 6.6L Duramax)

Sale price$59.99

XDP XD679 XTRA Cool Water Pump (With Housing) (2017 - 2025 Duramax) - Southern Diesel Supply

XDP XD679 XTRA Cool Water Pump (With Housing) (2017 - 2025 Duramax) - Southern Diesel Supply

XDP XD679 XTRA Cool Water Pump (With Housing) (2017-2025 Duramax)

Sale price$179.99

XDP XD678 XTRA Cool Water Pump (Pump Only) (2017 - 2025 Duramax) - Southern Diesel Supply

XDP XD678 XTRA Cool Water Pump (Pump Only) (2017 - 2025 Duramax) - Southern Diesel Supply

XDP XD678 XTRA Cool Water Pump (Pump Only) (2017-2025 Duramax)

Sale price$108.99

XDP XD344 HD Billet Coolant Block - Off Plate (2001 - 2025 Duramax) - Southern Diesel Supply

XDP XD344 HD Billet Coolant Block - Off Plate (2001 - 2025 Duramax) - Southern Diesel Supply

XDP XD344 HD Billet Coolant Block-Off Plate (2001-2025 Duramax)

Sale price$64.99

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

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

Hot Shot's Secret

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

Sale price$19.99

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

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

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 150K Mile Extended Life Green Coolant (1 Gal) - Southern Diesel Supply

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

Hot Shot's Secret

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

Sale price$16.99

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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.

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