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GMC, (2020-2023), L5P, Fuel System

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WCFab WCF100276 Fass Fuel System Relocation Bracket (2017-2023 Duramax)

FASS XWS3002XL Extended Length Extreme Water Separator Filter

FASS XWS3002 Extreme Water Separator Filter

FASS PF3001XL Extended Length Particulate Filter

Filtration 21

Hot Shot's Secret Diesel Extreme Fuel Additive

Hot Shot's Secret Everyday Diesel Treatment

XDP XDDPP116 Diesel Power Plus Fuel Additive (16oz)

Merchant Automotive 10508 Diesel Fuel Additive

Fuel Additives 18

Merchant Automotive 20255 Fuel Injector Line Set (2017-2025 6.6L Duramax)

Alliant Power AP0133 Fuel Injector Return line Seal Kit (2017-2026 Duramax)

Exergy Performance 1-018-148 M12X1.5 to -6AN High Flow CP3 Supply Fitting

Exergy Performance 1-018-149 M12X1.5 to -8AN HIGH Flow CP3 Supply Fitting

Exergy Performance 1-018-043 M14X1.5 Plug and Nut (Rail Cap)

Fuel Lines 7

Exergy Performance 1-008-003 M14X1.5 Three Way T Fitting

Exergy Performance 1-018-129 M14X1.5 Union

Fuel Rail System 7

Merchant Automotive 10561 HP4 Fuel Injection Pump Installation Gasket Kit (2017-2023 6.6L Duramax)

WCFab WCF100455 CP3 Conversion Kit W/ Exergy Sportsman Pump (2017-2026 Duramax)

WCFab WCF100458 CP3 Conversion Kit W/ Exergy 14mm Race Pump (2017-2026 Duramax)

WCFab WCF100457 CP3 Conversion Kit W/ Exergy 12mm Pump (2017-2026 Duramax)

WCFab WCF100456 CP3 Conversion Kit W/ Exergy 10mm Pump (2017-2026 Duramax)

Injection Pumps & Conversions 7

PPE Fuel Injector Wiring Harness Pigtail (2011-2024 6.6L, 2020-2026 3.0L Duramax)

Dynomite Diesel DDPL5P REMAN Injector Set (2017-2023 6.6L Duramax)

Dynomite Diesel DDPL5P Stock Injector (2017-2023 6.6L Duramax)

S&S Diesel Motorsport Injectors (2017-2023 6.6L Duramax)

Injectors 4

Lift Pumps 0

XDP XD182 Fuel Tank Sump - One Hole Design

XDP XD243 Fuel Tank Sump - One Hole Design With Fuel Return

G&R Diesel GRD00153 Bottom Sump w/ Integrated Return

BD Diesel 1050330 Flow-Max Fuel Tank Sump

Sumps 4

Tanks 0

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GMC, (2020-2023), L5P, Fuel System

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ACDelco (1) AirDog (6) Alliant Power (1) BD Diesel (1) Dynomite Diesel Products (3) Exergy Performance (14) FASS (11) Fleece Performance Engineering (2) G&R Diesel (1) Hot Shot's Secret (6) Lucas Oil (4) Merchant Automotive (3) Pacific Performance Engineering (2) S&S Diesel Motorsport (2) Wehrli Custom Fabrication (6) XDP MFG (3)

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66 products

WCFab WCF100276 Fass Fuel System Relocation Bracket (2017 - 2023 Duramax) - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100276 Fass Fuel System Relocation Bracket (2017-2023 Duramax)

Sale price$62.99

Fleece Performance Replacement Fuel Injector Connector With Pigtail (2011 - 2024 6.6L; 2019 - 2025 3.0L Duramax) - Southern Diesel Supply

Fleece Performance Engineering

Fleece Performance Engineering Replacement Fuel Injector Connector With Pigtail (2011-2024 6.6L; 2019-2025 3.0L Duramax)

Sale priceFrom $64.99

Merchant Automotive

Merchant Automotive 10561 HP4 Fuel Injection Pump Installation Gasket Kit (2017-2023 6.6L Duramax)

Sale price$93.99

Hot Shot's Secret

Hot Shot's Secret Diesel Extreme Fuel Additive

Sale priceFrom $17.99

Hot Shot's Secret

Hot Shot's Secret Everyday Diesel Treatment

Sale priceFrom $6.99

WCFab WCF100458 CP3 Conversion Kit W/ Exergy 14mm Race Pump (2017 - 2026 Duramax) - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100455 CP3 Conversion Kit W/ Exergy Sportsman Pump (2017-2026 Duramax)

Sale price$2,575.00

FASS

FASS XWS3002XL Extended Length Extreme Water Separator Filter

Sale price$32.99

FASS

FASS XWS3002 Extreme Water Separator Filter

Sale price$29.99

FASS

FASS PF3001XL Extended Length Particulate Filter

Sale price$23.99

FASS

FASS XWS3002XL Extended Length Extreme Water Separator Filter

Sale price$32.99

FASS

FASS Filter Pack XL

Sale priceFrom $56.99

FASS

FASS Filter Pack

Sale priceFrom $99.99

FASS

FASS No-Drop Titanium Signature Series PLUS Fuel System (2020-2023 6.6L Duramax)

Sale priceFrom $919.99

FASS

FASS Titanium Signature Series PLUS Fuel System (2020-2023 6.6L Duramax)

Sale priceFrom $849.99

FASS

FASS No-Drop Titanium Signature Series Fuel System (2020-2023 6.6L Duramax)

Sale priceFrom $869.99

FASS

FASS Titanium Signature Series Fuel System (2020-2023 6.6L Duramax)

Sale priceFrom $799.99

FASS

FASS Drop-In Series Diesel Fuel System (2017-2025 6.6L Duramax)

Sale price$479.99

PPE Fuel Injector Wiring Harness Pigtail (2011 - 2024 6.6L, 2020 - 2026 3.0L Duramax) - Southern Diesel Supply

Pacific Performance Engineering

PPE Fuel Injector Wiring Harness Pigtail (2011-2024 6.6L, 2020-2026 3.0L Duramax)

Sale price$29.99

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

XDP XD182 Fuel Tank Sump - One Hole Design - Southern Diesel Supply

XDP MFG

XDP XD182 Fuel Tank Sump - One Hole Design

Sale price$149.99

XDP XD243 Fuel Tank Sump - One Hole Design With Fuel Return - Southern Diesel Supply

XDP MFG

XDP XD243 Fuel Tank Sump - One Hole Design With Fuel Return

Sale price$185.99

XDP XDDPP116 Diesel Power Plus Fuel Additive (16oz) - Southern Diesel Supply

XDP MFG

XDP XDDPP116 Diesel Power Plus Fuel Additive (16oz)

Sale price$9.99

Merchant Automotive

Merchant Automotive 10508 Diesel Fuel Additive

Sale price$9.99

Merchant Automotive

Merchant Automotive 20255 Fuel Injector Line Set (2017-2025 6.6L Duramax)

Sale price$299.99

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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.