Duramax Diesel Parts & Upgrades

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1839 products

Calibrated Power / DuramaxTuner L5P Intake Horn Anti - Surge Ring (2017 - 2021 Duramax) - Southern Diesel SupplyCalibrated Power Solutions Intake Horn Anti-Surge Ring (2017-2021 6.6L Duramax) - Southern Diesel Supply
Calibrated Power / DuramaxTuner
Calibrated Power Solutions Intake Horn Anti-Surge Ring (2017-2021 6.6L Duramax) Sale price$129.99
Calibrated Power / DuramaxTuner DM1DH1070203000 Stealth Mach 1 (64) Turbo (2011 - 2016 Duramax) - Southern Diesel SupplyCalibrated Power / DuramaxTuner DM1DH1070203000 Stealth Mach 1 (64) Turbo (2011 - 2016 Duramax) - Southern Diesel Supply
Calibrated Power / DuramaxTuner
Calibrated Power Solutions CPS200262 Stealth Mach 1 (64) Turbo (2011-2016 6.6L Duramax) Sale price$2,599.99
ACDelco PF2232 Oil Filter for 2001 - 2019 Duramax - Southern Diesel Supply
ACDelco
ACDelco PF2232 Oil Filter (2001-2019 6.6L Duramax) Sale price$23.99
Cognito Uniball Pin Hardware Kit For Uniball Upper Control Arms On 01-19 Silverado/Sierra 1500HD-3500HD 01-13 GM 2500 SUVS 03-09 Hummer H2 14-18 Silverado/Sierra 1500 - Southern Diesel Supply
Cognito Motorsports
Cognito Uniball Pin Hardware Kit For Uniball Upper Control Arms On 01-19 Silverado/Sierra 1500HD-3500HD 01-13 GM 2500 SUVS 03-09 Hummer H2 14-18 Silverado/Sierra 1500 Sale price$75.99
Cognito Ball Joint Hardware Kit GM 01-19 Silverado/Sierra 1500HD-3500HD 01-13 GM 2500 SUVS 03-09 GM Hummer H2/H2 Suts 14-18 Silverado/Sierra 1500 SUVS - Southern Diesel Supply
Cognito Motorsports
Cognito Ball Joint Hardware Kit GM 01-19 Silverado/Sierra 1500HD-3500HD 01-13 GM 2500 SUVS 03-09 GM Hummer H2/H2 Suts 14-18 Silverado/Sierra 1500 SUVS Sale price$10.99
Cognito Ultimate Leveling Kit With Fox FRS 3.0 IBP Shocks 3-Inch 19-25 Silverado/Sierra 1500 & 1-Inch Including AT4, AT4X, Trail Boss, & ZR2 2WD/4WD - Southern Diesel Supply
Cognito Motorsports
Cognito Ultimate Leveling Kit With Fox FRS 3.0 IBP Shocks 3-Inch 19-25 Silverado/Sierra 1500 & 1-Inch Including AT4, AT4X, Trail Boss, & ZR2 2WD/4WD Sale price$9,216.99
Cognito 4-Inch Elite Lift Kit with King 2.5 Reservoir Shocks for 20-25 Silverado/Sierra 2500/3500 2WD/4WD - Southern Diesel Supply
Cognito Motorsports
Cognito 4-Inch Elite Lift Kit with King 2.5 Reservoir Shocks for 20-25 Silverado/Sierra 2500/3500 2WD/4WD Sale price$7,448.99
Cognito 6-Inch Elite Lift Kit with King 2.5 Remote Reservoir Shocks For 19-25 Silverado/Sierra 1500 2WD/4WD Including AT4 and Trail Boss - Southern Diesel Supply
Cognito Motorsports
Cognito 6-Inch Elite Lift Kit with King 2.5 Remote Reservoir Shocks For 19-25 Silverado/Sierra 1500 2WD/4WD Including AT4 and Trail Boss Sale price$7,512.99
Cognito 3-Inch Elite Leveling Kit with King 2.5 Reservoir Shocks For 11-19 Silverado Sierra 2500/3500 2WD/4WD - Southern Diesel Supply
Cognito Motorsports
Cognito 3-Inch Elite Leveling Kit with King 2.5 Reservoir Shocks For 11-19 Silverado Sierra 2500/3500 2WD/4WD Sale price$4,192.99
Cognito 3-Inch Elite Leveling Kit with King 2.5 Reservoir Shocks for 20-25 Silverado/Sierra 2500/3500 2WD/4WD - Southern Diesel Supply
Cognito Motorsports
Cognito 3-Inch Elite Leveling Kit with King 2.5 Reservoir Shocks for 20-25 Silverado/Sierra 2500/3500 2WD/4WD Sale price$4,192.99
Fender Trim Finishing Caps for 2020-2025 GMC Sierra 2500/3500HD - Southern Diesel Supply
Cognito Motorsports
Fender Trim Finishing Caps for 2020-2025 GMC Sierra 2500/3500HD Sale price$220.99
Cognito 12-Inch Performance Lift Kit with Fox 2.0 PSRR Shocks For 20-25 Silverado/Sierra 2500/3500 2WD/4WD - Southern Diesel Supply
Cognito Motorsports
Cognito 12-Inch Performance Lift Kit with Fox 2.0 PSRR Shocks For 20-25 Silverado/Sierra 2500/3500 2WD/4WD Sale price$8,673.99
Cognito 2-Inch Economy Leveling Kit For 19-25 Silverado/Sierra 1500 2WD/4WD - Southern Diesel Supply
Cognito Motorsports
Cognito 2-Inch Economy Leveling Kit For 19-25 Silverado/Sierra 1500 2WD/4WD Sale price$269.99
Fender Trim Finishing Caps for 20-25 GMC Sierra 2500HD/3500HD - Southern Diesel Supply
Cognito Motorsports
Fender Trim Finishing Caps for 20-25 GMC Sierra 2500HD/3500HD Sale price$446.99
Cognito 3-Inch Performance Leveling Kit with 2.0 IFP Shocks for 20-25 Silverado/Sierra 2500HD/3500HD - Southern Diesel Supply
Cognito Motorsports
Cognito 3-Inch Performance Leveling Kit with 2.0 IFP Shocks for 20-25 Silverado/Sierra 2500HD/3500HD Sale price$1,629.99
Cognito Comfort Ride Leaf Springs for 11-24 Silverado/Sierra 2500/3500 2WD/4WD - Southern Diesel Supply
Cognito Motorsports
Cognito Comfort Ride Leaf Springs for 11-24 Silverado/Sierra 2500/3500 2WD/4WD Sale price$1,102.99
Cognito 10-Inch Performance Lift Kit with Fox PSRR 2.0 Shocks For 20-25 Silverado/Sierra 2500/3500 2WD/4WD - Southern Diesel Supply
Cognito Motorsports
Cognito 10-Inch Performance Lift Kit with Fox PSRR 2.0 Shocks For 20-25 Silverado/Sierra 2500/3500 2WD/4WD Sale price$8,523.99
1" Block and 16" U-bolt Kit (steel/straight) for 11-24 GM 2500HD and 3500HD 2WD/4WD trucks - Southern Diesel Supply
Cognito Motorsports
1" Block and 16" U-bolt Kit (steel/straight) for 11-24 GM 2500HD and 3500HD 2WD/4WD trucks Sale price$199.99
Cognito Comfort Ride Torsion Bar kit for 11-19 Silverado/Sierra 2500HD/3500HD 2WD/4WD - Southern Diesel Supply
Cognito Motorsports
Cognito Comfort Ride Torsion Bar kit for 11-19 Silverado/Sierra 2500HD/3500HD 2WD/4WD Sale price$944.99
Cognito 3-Inch Performance Leveling Kit With 2.0 IFP Shocks For 11-19 Silverado/Sierra 2500HD/3500HD - Southern Diesel Supply
Cognito Motorsports
Cognito 3-Inch Performance Leveling Kit With 2.0 IFP Shocks For 11-19 Silverado/Sierra 2500HD/3500HD Sale price$1,739.99
Cognito 3-Inch Elite Ball Joint Leveling Kit with Fox 2.5 Elite Performance Series Shocks for 19-25 Silverado/Sierra 1500 2WD/4WD - Southern Diesel Supply
Cognito Motorsports
Cognito 3-Inch Elite Ball Joint Leveling Kit with Fox 2.5 Elite Performance Series Shocks for 19-25 Silverado/Sierra 1500 2WD/4WD Sale price$4,765.99
Cognito SM Series LDG Traction Bar Kit For 20-25 Silverado/Sierra 2500/3500 2WD/4WD with 5-9-Inch Rear Lift Height - Southern Diesel Supply
Cognito Motorsports
Cognito SM Series LDG Traction Bar Kit For 20-25 Silverado/Sierra 2500/3500 2WD/4WD with 5-9-Inch Rear Lift Height Sale price$1,749.99
Cognito 3-inch Performance Leveling kit with 2.0 IFP shocks for 20-25 Silverado/Sierra 2500/3500 2WD/4WD - Southern Diesel Supply
Cognito Motorsports
Cognito 3-inch Performance Leveling kit with 2.0 IFP shocks for 20-25 Silverado/Sierra 2500/3500 2WD/4WD Sale price$1,739.99
Steering Stabilizer Relocation Kit For 11-19 Silverado/Sierra 2500/3500 2WD/4WD - Southern Diesel Supply
Cognito Motorsports
Steering Stabilizer Relocation Kit For 11-19 Silverado/Sierra 2500/3500 2WD/4WD Sale price$20.99

Not sure it fits your truck?

Our Wildwood, FL techs will confirm the right part for your build before you buy.

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.