Duramax Diesel Parts & Upgrades

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1675 products

2017 - 2019 Duramax L5P Diagnostic Plugs - Southern Diesel Supply2017 - 2019 Duramax L5P Diagnostic Plugs - Southern Diesel Supply
Performance Diesel Worx
2017 - 2019 Duramax L5P Diagnostic Plugs Sale price$159.99
EFI Live AutoCal V3 - Blank - Southern Diesel Supply
EFI Live
EFI Live AutoCal V3 - Blank Sale price$549.99
2020 - 2023 Duramax L5P Diagnostic Plugs - Southern Diesel Supply2020 - 2023 Duramax L5P Diagnostic Plugs - Southern Diesel Supply
Performance Diesel Worx
2020 - 2023 Duramax L5P Diagnostic Plugs Sale price$169.99
HPTuners SOTF Switch - Southern Diesel Supply
Southern Diesel Supply
HPTuners SOTF Switch Sale priceFrom $79.99
LML Fuel Pressure Sensor Fooler & Sensor Removal Plug Kit | 2011 - 2016 Duramax LML - Southern Diesel SupplyLML Fuel Pressure Sensor Fooler & Sensor Removal Plug Kit | 2011 - 2016 Duramax LML - Southern Diesel Supply
Performance Diesel Worx
LML Fuel Pressure Sensor Fooler & Sensor Removal Plug Kit | 2011 - 2016 Duramax LML Sale price$59.99
2001-2010 & 2017-2023 Duramax L5P Failed Coolant Bottle Sensor Fooler - Southern Diesel Supply
Performance Diesel Worx
2001-2010 & 2017-2023 Duramax L5P Failed Coolant Bottle Sensor Fooler Sale price$44.99
Fleece FPE - DMAX - CBOP Duramax Billet Coolant Block Off Plate (2001 - 2025 Duramax) - Southern Diesel SupplyFleece 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$55.99
Save $4.00
PPE 114000555 Micropure XR Extreme Performance Engine Oil Filter (2001 - 2019 Duramax) - Southern Diesel SupplyPPE 114000555 Micropure XR Extreme Performance Engine Oil Filter (2001 - 2019 Duramax) - Southern Diesel Supply
Pacific Performance Engineering
PPE 114000555 Micropure XR Extreme Performance Engine Oil Filter (2001-2019 Duramax) Sale price$35.99 Regular price$39.99
HPTuners E41 Upgrade Kit - Southern Diesel Supply
Southern Diesel Supply
HPTuners E41 Upgrade Kit Sale price$199.99
Save $2.00
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 6.6L Duramax) Sale price$49.99 Regular price$51.99
Edge Products 28601 A - Pillar Display Mount (2020 - 2023 6.6L Duramax; 2019 - 2022 3.0L Duramax) - Southern Diesel SupplyEdge Products 28601 A - Pillar Display Mount (2020 - 2023 6.6L Duramax; 2019 - 2022 3.0L Duramax) - Southern Diesel Supply
Edge Products
Edge Products 28601 A-Pillar Display Mount (2020-2023 6.6L Duramax; 2019-2022 3.0L Duramax) Sale price$75.99
Save $2.00
WCFab WCF100199 L5P Up Pipe Bolt Kit (2017 - 2026 Duramax) - Southern Diesel Supply
Wehrli Custom Fabrication
WCFab WCF100199 Up Pipe Bolt Kit (2017-2026 6.6L Duramax) Sale price$60.99 Regular price$62.99
Save $2.00
WCFab WCF100469 Duramax Transmission Cooler Thermostat Bypass Plug - Southern Diesel SupplyWCFab WCF100469 Duramax Transmission Cooler Thermostat Bypass Plug - Southern Diesel Supply
Wehrli Custom Fabrication
WCFab WCF100469 Transmission Cooler Thermostat Bypass Plug (2017-2019 6.6L Duramax) Sale price$59.99 Regular price$61.99
Calibrated Power / DuramaxTuner DM1JK1070203000 Stealth Mach 1 (64) Turbo (2017 - 2019 L5P/L5D) - Southern Diesel SupplyCalibrated Power / DuramaxTuner DM1JK1070203000 Stealth Mach 1 (64) Turbo (2017 - 2019 L5P/L5D) - Southern Diesel Supply
Calibrated Power / DuramaxTuner
Calibrated Power Solutions CPS200275 Stealth Mach 1 (64) Turbo (2017-2023 6.6L Duramax) Sale price$3,149.99
On sale
PPE Turbo Resonator Delete Plug (2011-2016 6.6L Duramax) - Southern Diesel SupplyPPE Turbo Resonator Delete Plug (2011-2016 6.6L Duramax) - Southern Diesel Supply
Pacific Performance Engineering
PPE Turbo Resonator Delete Plug (2011-2016 6.6L Duramax) Sale priceFrom $19.99 Regular price$21.99
BDS Suspension 6.5 Inch Lift Kit (2011-2019 6.6L Duramax) - Southern Diesel SupplyBDS Suspension 6.5 Inch Lift Kit (2011-2019 6.6L Duramax) - Southern Diesel Supply
BDS Suspension
BDS Suspension 6.5 Inch Lift Kit (2011-2019 6.6L Duramax) Sale priceFrom $2,499.99
Save $4.00
PPE 114000759 93mm Billet Aluminum Engine Oil Filter Socket (2011 - 2026 6.7L Power Stroke, 2020 - 2025 6.6L Duramax) - Southern Diesel SupplyPPE 114000759 93mm Billet Aluminum Engine Oil Filter Socket (2011 - 2026 6.7L Power Stroke, 2020 - 2025 6.6L Duramax) - Southern Diesel Supply
Pacific Performance Engineering
PPE 114000759 93mm Billet Aluminum Engine Oil Filter Socket (2011-2026 6.7L Power Stroke, 2020-2025 6.6L Duramax) Sale price$35.99 Regular price$39.99
Save $3.00
PPE 114000750 Premium High - Efficiency Oversized Oil Filter (2020 - 2026 Duramax) - Southern Diesel SupplyPPE 114000750 Premium High - Efficiency Oversized Oil Filter (2020 - 2026 Duramax) - Southern Diesel Supply
Pacific Performance Engineering
PPE 114000750 Premium High-Efficiency Oversized Oil Filter (2020-2026 Duramax) Sale price$29.99 Regular price$32.99
S&B KF - 1081 Intake Replacement Filter (2017 - 2019 Duramax) - Southern Diesel SupplyS&B KF - 1081 Intake Replacement Filter (2017 - 2019 Duramax) - Southern Diesel Supply
S&B
S&B KF-1081 Intake Replacement Filter (2017-2019 6.6L Duramax) Sale price$69.99
Save $10.00
WCFab WCF100188 Thermostat Housing (2017 - 2025 Duramax) - Southern Diesel SupplyWCFab WCF100188 Thermostat Housing (2017 - 2025 Duramax) - Southern Diesel Supply
Wehrli Custom Fabrication
WCFab WCF100188 Thermostat Housing (2017-2026 6.6L Duramax) Sale price$179.99 Regular price$189.99
HPTuners Unlock E41 ECM for 2017 - 2023 Duramax L5P - Southern Diesel Supply
Southern Diesel Supply
HPTuners Unlock E41 ECM for 2017-2023 Duramax L5P Sale price$1,499.99
HPTuners GM E42 ECM Service (2024 - 2026 L5P, Global B) - Southern Diesel Supply
Southern Diesel Supply
HPTuners GM E42 ECM Service (2024-2026 L5P, Global B) Sale price$999.99
Edge Products 28600 A - Pillar Display Mount (2015 - 2019 6.6L Duramax) - Southern Diesel SupplyEdge Products 28600 A - Pillar Display Mount (2015 - 2019 6.6L Duramax) - Southern Diesel Supply
Edge Products
Edge Products 28600 A-Pillar Display Mount (2015-2019 6.6L Duramax) Sale price$68.99
S&S Diesel Motorsport LML Duramax Injectors (2011 - 2016) - Southern Diesel SupplyS&S Diesel Motorsport LML Duramax Injectors (2011 - 2016) - Southern Diesel Supply
S&S Diesel Motorsport
S&S Diesel Motorsport Injectors (2011-2016 6.6L Duramax) Sale priceFrom $2,919.99

Not sure it fits your truck?

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Call or Text (352) 722-5295

Parts and performance upgrades for every Duramax-powered Chevy and GMC, from the 2001 LB7 to the latest L5P, plus the 3.0L and 2.8L Duramax. Southern Diesel Supply is a working diesel shop, so we stock the parts we install every week: lift pumps, injectors, CP3 and CP4 pumps, turbos, Allison transmission parts, suspension and maintenance items.

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Need more fuel? See our AirDog lift pumps. Running a Cummins or Powerstroke instead? Shop Cummins parts or Powerstroke parts.