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7.3L (1994-2020)

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GMC, (2017-2019), L5P

Shop Parts by Category

Every parts category for your truck — pick one to narrow it down, or scroll to browse everything that fits.

S&B KF-1081 Intake Replacement Filter (2017-2019 6.6L Duramax)

Banks Power 42792 Monster-Ram Turbo Inlet Elbow (2017-2026 Duramax)

WCFab WCF100530 L5P Duramax 3.5" Passenger (Cold) Side Intercooler Pipe Kit

CSF 6079 OEM+ Replacement Intercooler (2017-2019 6.6L Duramax)

Banks Power 25999 Boost Tube Upgrade Kit (2017-2019 Duramax)

Air Intake 50

WCFab WCF100217 Premium Rear Differential Cover Bolt Kit (2020-2024 Duramax; 2003-2024 Cummins)

PPE 12-Bolt Heavy-Duty Cast Aluminum Front Differential Cover (2011-2026 Duramax)

PPE 138051002 Rear Differential Cover Gasket (2001-2019 Duramax; 2003-2018 Cummins)

Pacific Performance Engineering | PPE AAM 11.5"-14-Bolt Heavy-Duty Cast Aluminum Rear Differential Cover (2001-2019 Duramax; 2003-2018 Cummins)

Axel & Driveline 27

BDS Suspension Front Brake Line Set 6 Inch Lift (2011-2026 6.6L Duramax))

Lucas Oil 10906 Non-Chlorinated Brake Parts Cleaner

Lucas Oil 10825 DOT 3 Synthetic Brake Fluid

Lucas Oil 10827 DOT 4 Synthetic Brake Fluid

Brakes 8

Mean Green MG1234 High Output Alternator (2011-2019 6.6L Duramax)

PPE Top Post Battery Heat Shield (2007.5-2023 Duramax)

XDP XD350 HD High Output Alternator Wrinkle Black (2011-2019 Duramax)

XDP XD533 Starter Bolt Kit (Black-Phosphate) (2001-2022 Duramax)

XDP XD251 HD Gear Reduction Starter Wrinkle Black (2001-2019 Duramax)

Charging/Starting 7

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 WCF100188 Thermostat Housing (2017-2026 6.6L Duramax)

WCFab WCF100433 L5P / 2019+ L5D Duramax OEM Placement Coolant Tank Kit

Cooling System 39

Edge Products 84130-3 Insight CTS3 Universal OBD-II Monitoring

Edge Products 98620 EAS EGT Kit - Daily Driver/Tow Kit

Edge Products 28600 A-Pillar Display Mount (2015-2019 6.6L Duramax)

Edge Products 98607 EAS Pressure Sensor (0-100 PSI)

Digital Monitors 4

PPE 114000555 Micropure XR Extreme Performance Engine Oil Filter (2001-2019 Duramax)

Hot Shot's Secret Green Diamond 10W-30 Full Synthetic CK-4 Engine Oil (1 Gal)

Hot Shot's Secret Green Diamond 15W-40 Semi-Synthetic CK-4 Engine Oil (1 Gal)

Hot Shot's Secret Blue Diamond 15W-40 Full Synthetic CK-4 Engine Oil (1 Gal)

Southern Diesel Supply | 2017-2024 Duramax L5P CCV Reroute Kit | Oil System

Engine 63

WCFab WCF100199 L5P Up Pipe Bolt Kit (2017-2026 Duramax)

WCFab WCF100226 Billet Exhaust Manifold & 2" Stainless Up Pipe Kit (2017-2025 Duramax)

MBRP Diesel Resonators (Aluminized & Stainless Steel)

WCFab WCF100129 3.5" Down Pipe (2017-2025 6.6L Duramax)

Exhaust System 61

BHP BHP4001 Flip Up License Plate Bracket

BHP BHP3000 Clamp On Sled Stops - Below Roll Pan

WCFab WCF100432 GM Lower Splash Shield Kit (2011-2019 Duramax)

WCFab Billet Tig Torch Stubby Antenna (2007.5-2020+ 6.6L Duramax)

Amp Research 76247-01A Research PowerStep (Plug-N-Play)

Exterior 5

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

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

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

Hot Shot's Secret Diesel Extreme Fuel Additive

Hot Shot's Secret Everyday Diesel Treatment

Fuel System 65

WCFab WCF100441 L5P Duramax Stage 2 High Flow Intake Bundle Kit

WCFab WCF100718 L5P Duramax Stage 1 High Flow Intake Bundle Kit

WCFab WCF100403 L5P Duramax Stage 3 High Flow Intake Bundle Kit

WCFab WCF207-104 3" ID X 4" Long Silicone Boot And Clamp Kit

High Flow Kits 4

Interior 0

Fleece Performance Engineering FPE-ALO All Lights On® (2007.5-2025 6.6L; 2019-2024 3.0L; 2015-2021 2.8L Duramax)

AlphaRex 620030 Luxx-Series Black LED Tail Lights

AlphaRex 620050 Luxx-Series LED Black/Red Tail Lights

AlphaRex 880613 Pro-Series Black Projector Headlights

AlphaRex 880616 Nova-Series Alpha-Black LED Projector Headlights

Lighting 14

Power Adders 0

BDS Suspension Heavy Duty Tie Rod Kit (2011-2026 6.6L Duramax)

PPE 158101120 Forged 7/8” Drilled Steering Assembly Kit (2011-2026 6.6L Duramax)

PPE 158032511 Forged XR Tie Rod Kit (2011-2026 6.6L Duramax)

Single Steering Stabilizer Mounting Kit (2016-2026 6.6L Duramax)

PPE 158031513 Stage 3 Inner Tie Rod (2011-2025 6.6L Duramax)

Steering 16

BDS Suspension 6.5 Inch Lift Kit (2011-2019 6.6L Duramax)

BDS Suspension Upper Control Arm Kit (2011-2019 6.6L Duramax)

BDS Suspension Recoil Traction Bar Mounting Kit (2011-2019 6.6L Duramax)

BDS Suspension Heavy Duty Skid Plate Kit (2011-2019 6.6L Duramax)

BDS Suspension Front Sway Bar Link Kit for 4-6 Inch Lift (2011-2019 6.6L Duramax)

Suspension 51

WCFab WCF25-3290-120 32 In. X 90 In. Modular Steel Work Bench

PPE 114000558 Oil Filter Hand Wrench For PPE Engine Oil Filters (2001-2019 6.6L Duramax)

PPE 128043100 Transmission Harness Removal Tool (2001-2019 6.6L Duramax)

PPE 114000559 107mm Billet Aluminum Engine Oil Filter Socket (2001-2019 6.6L Duramax)

XDP XD40126TC Thread Cleaning Chaser (M14x2.0) XD40126TC

Tools 18

B&W TS20067BMP Tow & Stow Adjustable Ball Mount, MultiPro/MultiFlex 2.5" Shank, 7" Drop

BHP BHP4002 7 & 4 Pole Trailer Connector Socket w/ Mounting Bracket (2001-2025 6.6L Duramax)

BHP BHP2000 Adjustable Pulling Hitch - 2 Inch

BHP BHP2001 Adjustable Pulling Hitch - 2.5 Inch

Towing 42

WCFab WCF100469 Duramax Transmission Cooler Thermostat Bypass Plug

PPE 125065020 Transmission Fluid Thermal Bypass Valve (2017-2019 6.6L Duramax)

Merchant Automotive 10793 Allison 1000 Transmission Converter Housing Reseal Kit (2001-2016 6.6L Duramax)

Merchant Automotive 10685 Pass Through Transmission Connector Seal (2001-2019 6.6L Duramax)

XDP XD656 Flex Plate Bolt Kit (2001-2019 Duramax)

Transmission 77

Calibrated Power Solutions Transmission Tuning - Pretuned TCM (2017-2023 6.6L 6.6L Duramax)

Calibrated Power Solutions DSP Switch Bracket No Drill Mount (2001-2016 6.6L Duramax)

Tuning 4

Calibrated Power Solutions CPS200275 Stealth Mach 1 (64) Turbo (2017-2023 6.6L Duramax)

WCFab WCF100178 OEM/VGT Turbo Gasket Kit (2017-2023 6.6L Duramax)

Merchant Automotive 10721 Billet Turbo Resonator Delete Plug (2017-2019 6.6L Duramax)

Calibrated Power Solutions Intake Horn Anti-Surge Ring (2017-2021 6.6L Duramax)

Turbosmart Constant Tension Clamps 1.625-2.375

Turbo 29

Merchant Automotive 10725 Wheel Spacers 1.5" (Pair) (2011-2019 6.6L Duramax)

Merchant Automotive 10720 Wheel Spacers 1/2" (Pair) (2001-2024 6.6L Duramax)

Wheels 2

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ACDelco (4) AFE (9) Air Lift (23) AirDog (6) Alliant Power (1) Allison Transmission (4) AlphaRex (13) Amp Research (1) ARP (3) ATS Diesel Performance (12) B&W Trailer Hitches (21) Banks Power (9) BD Diesel (23) BDS Suspension (15) Big Hitch Products (9) Bilstein (10) Calibrated Power / DuramaxTuner (9) CSF (3) Dynomite Diesel Products (3) Edge Products (4) Exergy Performance (15) FASS (11) Fleece Performance Engineering (8) G&R Diesel (1) Gator Fasteners (5) Hot Shot's Secret (40) HP Tuners (1) Lucas Oil (24) Mag-Hytec (2) Mahle (13) MBRP (28) Mean Green (2) Merchant Automotive (30) Mishimoto Performance Parts (29) No Limit Fabrication (1) Pacific Performance Engineering (65) Performance Diesel Worx (1) Royal Purple (1) S&B (8) S&S Diesel Motorsport (2) Shibby (1) Southern Diesel Supply (2) Suncoast Performance (1) Turbosmart (1) Wehrli Custom Fabrication (56) XDP MFG (29)

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559 products

FASS

FASS No-Drop Series Fuel System (2017-2019 6.6L Duramax)

Sale priceFrom $869.99

FASS

FASS Titanium Signature Series Fuel System (2017-2019 6.6L Duramax)

Sale priceFrom $799.99

FASS

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

Sale price$479.99

BDS Suspension

BDS Suspension Upper Control Arm Kit (2011-2019 6.6L Duramax)

Sale price$770.99

BDS Suspension

BDS Suspension Recoil Traction Bar Mounting Kit (2011-2019 6.6L Duramax)

Sale price$228.99

BDS Suspension

BDS Suspension Heavy Duty Skid Plate Kit (2011-2019 6.6L Duramax)

Sale price$167.99

BDS Suspension

BDS Suspension Front Sway Bar Link Kit for 4-6 Inch Lift (2011-2019 6.6L Duramax)

Sale price$91.99

BDS Suspension

BDS Suspension Front Skid Plate for BDS 4-6 Inch Lift Only (2001-2019 6.6L Duramax)

Sale price$94.99

BDS Suspension

BDS Suspension 6.5 Inch Lift FOX 2.5 Coilover Conversion Upgrade (2011-2019 6.6L Duramax)

Sale price$5,064.99

BDS Suspension

BDS Suspension 6.5 Inch Lift Kit FOX 2.5 Coilover Conversion (2011-2019 6.6L Duramax)

Sale priceFrom $7,029.99

BDS Suspension

BDS Suspension 4.5 Inch Lift Kit (2011-2019 6.6L Duramax)

Sale priceFrom $2,450.99

BDS Suspension

BDS Suspension 3 Inch Lift Kit FOX Coilover Conversion (2011-2019 6.6L Duramax 4WD)

Sale priceFrom $5,313.99

BDS Suspension

Single Steering Stabilizer Mounting Kit (2016-2026 6.6L Duramax)

Sale price$33.99

BDS Suspension

BDS Suspension Front Brake Line Set 6 Inch Lift (2011-2026 6.6L Duramax))

Sale price$239.99

Pacific Performance Engineering

PPE 128044000 A1000 Transmission Pan Gasket (2001-2019 6.6L Duramax)

Sale price$49.99

PPE Performance Transmission Mount (2011-2019 6.6L Duramax) - Southern Diesel Supply

Pacific Performance Engineering

PPE Performance Transmission Mount (2011-2019 6.6L Duramax)

Sale price$89.99

PPE 128035590 Stage 6G Transmission C5 Clutch Kit (2001-2019 6.6L Duramax) - Southern Diesel Supply

Pacific Performance Engineering

PPE 128035590 Stage 6G Transmission C5 Clutch Kit (2001-2019 6.6L Duramax)

Sale price$299.99

PPE 125065000 Transmission Fluid Thermal Bypass Valve (2017-2019 6.6L Duramax) - Southern Diesel Supply

Pacific Performance Engineering

PPE 125065000 Transmission Fluid Thermal Bypass Valve (2017-2019 6.6L Duramax)

Sale price$99.99

PPE 124065000 Bar And Plate Transmission Cooler (2017-2019 6.6L Duramax) - Southern Diesel Supply

Pacific Performance Engineering

PPE 124065000 Bar And Plate Transmission Cooler (2017-2019 6.6L Duramax)

Sale price$389.99

Pacific Performance Engineering

PPE Performance Transmission Mount (2011-2019 6.6L Duramax)

Sale price$89.99

Pacific Performance Engineering

PPE Low Profile Aluminum Transmission Pan (2001-2019 6.6L Duramax)

Sale priceFrom $269.99

Pacific Performance Engineering

PPE 128041119 EPC Solenoid Blocker (2011-2019 6.6L Duramax)

Sale price$54.99

PPE Deep Allison Transmission Pan (2001 - 2019 6.6L Duramax) - Southern Diesel Supply

Pacific Performance Engineering

PPE Deep Allison Transmission Pan (2001-2019 6.6L Duramax)

Sale priceFrom $369.99

PPE 129021115 Transfer Case Brace (2011 - 2019 6.6L Duramax) - Southern Diesel Supply

Pacific Performance Engineering

PPE 129021115 Transfer Case Brace (2011-2019 6.6L Duramax)

Sale price$149.99

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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.