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GMC, (2017-2019), L5P, Transmission

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Calibrated Power Solutions DT750-L5P Built Transmission w/o Torque Converter (2017-2019 6.6L Duramax)

Complete Transmissions 1

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 Parts 76

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AFE (1) Allison Transmission (4) ATS Diesel Performance (9) Banks Power (1) BD Diesel (6) Calibrated Power / DuramaxTuner (1) Fleece Performance Engineering (2) Gator Fasteners (1) Hot Shot's Secret (8) Lucas Oil (1) Mag-Hytec (1) Merchant Automotive (11) Mishimoto Performance Parts (11) Pacific Performance Engineering (15) Suncoast Performance (1) Wehrli Custom Fabrication (2) XDP MFG (2)

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77 products

Hot Shot's Secret

Hot Shot's Secret Blue Diamond G56 Severe Duty SAE 50 Transmission Fluid (1 Gal)

Sale price$78.99

Hot Shot's Secret

Hot Shot's Secret Blue Diamond ATF+4/DEXRON III/MERCON V Trans Fluid (1 Gal)

Sale price$64.99

Hot Shot's Secret

Hot Shot's Blue Diamond Dexron VI & Mercon LV Transmission Fluid (1 Gal)

Sale price$64.99

Gator Fasteners

Gator Fasteners FPBK66 Heavy Duty Flexplate Bolt Kit (2001-2025 6.6L Duramax)

Sale price$132.99

Fleece FPE - HAR - MU - PT - 14 Transmission Input Speed Sensor Pigtail (2015 - 2019 Durmamax) - Southern Diesel Supply

Fleece Performance Engineering

Fleece Performance Engineering FPE-HAR-MU-PT-14 Transmission Input Speed Sensor Pigtail (2015-2019 6.6L Durmamax)

Sale price$13.99

Fleece FPE - HAR - GM - AT - 20 - PT Automatic Transmission 20 - Pin Pigtail (2001 - 2019 Duramax) - Southern Diesel Supply

Fleece Performance Engineering

Fleece Performance Engineering FPE-HAR-GM-AT-20-PT Automatic Transmission 20-Pin Pigtail (2001-2019 6.6L Duramax)

Sale price$104.99

Calibrated Power / DuramaxTuner

Calibrated Power Solutions DT750-L5P Built Transmission w/o Torque Converter (2017-2019 6.6L Duramax)

Sale price$4,645.99

PPE 128059150 Allison Micropure Spin - On Transmission Fluid Filter (2001 - 2019 Duramax) - Southern Diesel Supply

Pacific Performance Engineering

PPE 128059150 Allison Micropure Spin-On Transmission Fluid Filter (2001-2019 Duramax)

Sale price$19.99

BD Diesel

BD Diesel 1061650 Deep Sump Allison Transmission Pan (2001-2019 Duramax)

Sale price$439.99

BD Diesel

BD Diesel 1041260 Billet Flex Plate (2001-2019 Duramax)

Sale price$459.99

BD Diesel

BD Diesel 1030711 2LOW Unloc (2015-2019 Duramax)

Sale price$198.99

BD Diesel

BD Diesel 1300601-DS Xtruded Double Stacked Transmission Cooler

Sale price$723.99

BD Diesel

BD Diesel 1300611 Xtruded Auxiliary Trans Cooler

Sale price$354.99

BD Diesel

BD Diesel 1030607 Universal Transmission Cooler Electric Fan

Sale price$85.99

Banks Power

Banks Power 35146-B Ram-Air Transmission Pan (2001-2019 Duramax)

Sale price$476.99

WCFab WCF100140 LML/L5P Duramax Allison 4X4 Transfer Case Brace - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100140 Allison 4X4 Transfer Case Brace (2011-2019 6.6L Duramax)

Sale price$185.99

ATS Diesel Performance

ATS Diesel Performance ATS 301-900-4248 Allison Deep Transmission Pan Fits 2001-2018 6.6L Duramax

Sale price$372.99

ATS Diesel Performance

ATS Diesel Performance 302-950-4368 Five Star Performance Torque Converter Factory 1300-1500 RPM Stall Speed Allison LCT1000 (2011-2019 Duramax)

Sale price$1,471.99

ATS Diesel Performance

ATS Diesel Performance ATS 304-920-4248 Allison Billet Intermediate Shaft Fits 2001-2019 6.6L Duramax

Sale price$495.99

ATS Diesel Performance

ATS Diesel Performance ATS 313-905-4368 Allison Stage 5 Rebuild Kit Fits 2011-2019 6.6L Duramax

Sale priceFrom $2,994.99

ATS Diesel Performance

ATS Diesel Performance ATS 313-906-4368 Allison Stage 6 Rebuild Kit Fits 2011-2019 6.6L Duramax

Sale priceFrom $3,298.99

ATS Diesel Performance

ATS Diesel Performance ATS 313-907-4368 Allison Stage 7 Rebuild Kit Fits 2011-2019 6.6L Duramax

Sale priceFrom $4,308.99

ATS Diesel Performance

ATS Diesel Performance ATS 313-921-4368 Allison Master Rebuild Kit Fits 2011-2019 6.6L Duramax

Sale priceFrom $1,725.50

ATS Diesel Performance

ATS Diesel Performance ATS 314-005-4272 Allison Late Cooler Line Fitting Fits 2003+ 6.6L Duramax

Sale price$35.00

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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.