Duramax Diesel Parts & Upgrades

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1682 products

Merchant Automotive 10685 Pass Through Transmission Connector Seal (2001 - 2019 Duramax) - Southern Diesel Supply
Merchant Automotive
Merchant Automotive 10685 Pass Through Transmission Connector Seal (2001-2019 6.6L Duramax) Sale price$34.99
Merchant Automotive 15001 Fuel Injection Pump Inlet Hose (2004.5 - 2010 Duramax) - Southern Diesel Supply
Merchant Automotive
Merchant Automotive 15001 Fuel Injection Pump Inlet Hose (2004.5-2010 6.6L Duramax) Sale price$39.99
Merchant Automotive 411081A Transfer Case Front Output Seal (2001 - 2007 Duramax) - Southern Diesel Supply
Merchant Automotive
Merchant Automotive 411081A Transfer Case Front Output Seal (2001-2007 6.6L Duramax) Sale price$19.99
Mean Green MG1234 High Output Alternator (2011 - 2019 Duramax) - Southern Diesel Supply
Mean Green
Mean Green MG1234 High Output Alternator (2011-2019 6.6L Duramax) Sale price$619.99
MAHLE OS32471 Engine Oil Pan Gasket (2011 - 2016 Duramax) - Southern Diesel Supply
Mahle
MAHLE OS32471 Engine Oil Pan Gasket (2011-2016 6.6L Duramax) Sale price$16.99
MAHLE C32062 Water Pump Gasket (2001 - 2005 Duramax) - Southern Diesel Supply
Mahle
MAHLE C32062 Water Pump Gasket (2001-2005 6.6L Duramax) Sale price$5.99
MAHLE CS54580B Lower Engine Gasket Kit (2011 - 2016 Duramax) - Southern Diesel Supply
Mahle
MAHLE CS54580B Lower Engine Gasket Kit (2011-2016 6.6L Duramax) Sale price$175.99
MAHLE G31914 Intake Tube Seal (Snout at Y - Bridge) (2006 - 2010 Duramax) - Southern Diesel Supply
Mahle
MAHLE G31914 Intake Tube Seal (Snout at Y-Bridge) (2006-2010 6.6L Duramax) Sale price$2.99
MAHLE GS33757 Valve Cover Gasket & Injector Seal Kit (2001 - 2004 Duramax) - Southern Diesel Supply
Mahle
MAHLE GS33757 Valve Cover Gasket & Injector Seal Kit (2001-2004 6.6L Duramax) Sale price$94.99
Fleece FPE - ALO All Lights On® (2007.5 - 2025 6.6L; 2019 - 2024 3.0L; 2015 - 2021 2.8L Duramax) - Southern Diesel SupplyFleece FPE - ALO All Lights On® (2007.5 - 2025 6.6L; 2019 - 2024 3.0L; 2015 - 2021 2.8L Duramax) - Southern Diesel Supply
Fleece Performance Engineering
Fleece Performance Engineering FPE-ALO All Lights On® (2007.5-2025 6.6L; 2019-2024 3.0L; 2015-2021 2.8L Duramax) Sale price$21.99
HPTuners TCM - GB - T93 - UO GM T93 TCM Service (Global B) (2024 - 2026 Duramax) - Southern Diesel Supply
HP Tuners
HPTuners TCM-GB-T93-UO GM T93 TCM Service (Global B) (2024-2026 Duramax) Sale price$399.99
CSF 6079 OEM+ Replacement Intercooler (2017 - 2019 Duramax) - Southern Diesel Supply
CSF
CSF 6079 OEM+ Replacement Intercooler (2017-2019 6.6L Duramax) Sale price$465.99
Save $70.00
Bilstein 24 - 337052 B8 5100 Shock Absorber (Front, 2019 - 2025 3.0L Duramax) - Southern Diesel Supply
Bilstein
Bilstein 24-337052 B8 5100 Shock Absorber (Front, 2019-2025 3.0L Duramax) Sale price$189.99 Regular price$259.99
Suncoast A1 - BFP - 4 Billet Flex Plate - Southern Diesel Supply
Suncoast Performance
Suncoast A1-BFP-4 Billet Flex Plate (2017-2019 6.6L Duramax) Sale price$529.99
On sale
PPE 128060000 Raw Heavy Duty PTO Side Plate Covers - Southern Diesel SupplyPPE 128060000 Raw Heavy Duty PTO Side Plate Covers - Southern Diesel Supply
Pacific Performance Engineering
PPE Raw Heavy Duty PTO Side Plate Covers (2001-2016 6.6L Duramax) Sale priceFrom $71.99 Regular price$79.99
On sale
WCFab WCF100278 LML Stage 1 High Flow Intake Bundle Kit (2011 - 2016 Duramax) - Southern Diesel SupplyWCFab WCF100505 LML Duramax Stage 3 High Flow Intake Bundle Kit - Southern Diesel Supply
Wehrli Custom Fabrication
WCFab WCF100278 Stage 1 High Flow Intake Bundle Kit (2011-2016 6.6L Duramax) Sale priceFrom $1,489.99 Regular price$1,529.99
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Fleece Performance Replacement Fuel Injector Connector With Pigtail (2011 - 2024 6.6L; 2019 - 2025 3.0L Duramax) - Southern Diesel SupplyFleece 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 $59.99
Exergy Performance New Replacement Fuel Injectors (Set of 8) (2017 - 2019 Duramax) - Southern Diesel Supply
Exergy Performance
Exergy Performance New Replacement Fuel Injectors Set (2017-2024 6.6L Duramax) Sale priceFrom $2,520.99
On sale
PPE 304 Stainless Steel DDP - Back Performance Exhaust Kit - Single Exit (2020 - 2022 3.0L Duramax) - Southern Diesel SupplyPPE 304 Stainless Steel DDP - Back Performance Exhaust Kit - Single Exit (2020 - 2022 3.0L Duramax) - Southern Diesel Supply
Pacific Performance Engineering
PPE 304 Stainless Steel DDP-Back Performance Exhaust Kit - Single Exit (2020-2022 3.0L Duramax) Sale priceFrom $499.99 Regular price$549.99
Southern Diesel Supply | 2017 - 2024 Duramax L5P CCV Reroute Kit | Oil System - Southern Diesel SupplySouthern Diesel Supply | 2017 - 2024 Duramax L5P CCV Reroute Kit | Oil System - Southern Diesel Supply
Southern Diesel Supply
Southern Diesel Supply | 2017-2024 Duramax L5P CCV Reroute Kit | Oil System Sale price$529.99
Calibrated Power / DuramaxTuner DM1QQ1070303000 2024–2025 L5P Drop - In Stealth Mach 2 67MM Upgraded Turbo - Southern Diesel SupplyCalibrated Power / DuramaxTuner DM1QQ1070303000 2024–2025 L5P Drop - In Stealth Mach 2 67MM Upgraded Turbo - Southern Diesel Supply
Calibrated Power / DuramaxTuner
Calibrated Power Solutions CPS200329 Drop-In Stealth Mach 2 67MM Upgraded Turbo (2024–2026 6.6L Duramax) Sale price$3,549.99
Edge Products 28604 A - Pillar Display Mount (2024 - 2025 6.6L Duramax) - Southern Diesel SupplyEdge Products 28604 A - Pillar Display Mount (2024 - 2025 6.6L Duramax) - Southern Diesel Supply
Edge Products
Edge Products 28604 A-Pillar Display Mount (2024-2026 6.6L Duramax) Sale price$63.99
Save $70.00
Banks Power 25999 Boost Tube Upgrade Kit (2017 - 2019 Duramax) - Southern Diesel SupplyBanks Power 25999 Boost Tube Upgrade Kit (2017 - 2019 Duramax) - Southern Diesel Supply
Banks Power
Banks Power 25999 Boost Tube Upgrade Kit (2017-2019 Duramax) Sale price$599.99 Regular price$669.99
Save $80.00
Banks Power 26005 Duramax L5P Boost Tube Upgrade Kit (2020 - 2026 Duramax) - Southern Diesel SupplyBanks Power 26005 Duramax L5P Boost Tube Upgrade Kit (2020 - 2026 Duramax) - Southern Diesel Supply
Banks Power
Banks Power 26005 Duramax L5P Boost Tube Upgrade Kit (2020-2026 Duramax) Sale price$699.99 Regular price$779.99

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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.