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GMC, (2017-2019), L5P, Transmission, Transmission Parts, Parts

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Allison Transmission (2)

ATS Diesel Performance (6)

BD Diesel (4)

Fleece Performance Engineering (2)

Merchant Automotive (10)

Mishimoto Performance Parts (11)

Pacific Performance Engineering (9)

Wehrli Custom Fabrication (2)

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Allison Transmission (2) ATS Diesel Performance (6) BD Diesel (4) Fleece Performance Engineering (2) Merchant Automotive (10) Mishimoto Performance Parts (11) Pacific Performance Engineering (9) Wehrli Custom Fabrication (2) XDP MFG (2)

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48 products

Mishimoto MMTC - L5P - TBV Transmission Thermal Bypass Valve (2017 - 2019 Duramax) - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMTC-L5P-TBV Transmission Thermal Bypass Valve (2017-2019 6.6L Duramax)

Sale priceFrom $110.99

Mishimoto MMTC - DMAX - 17SL Transmission Cooler (2017 - 2019 Duramax) - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMTC-DMAX-17SL Transmission Cooler (2017-2019 6.6L Duramax)

Sale price$550.99

Merchant Automotive

Merchant Automotive 10629 Allison 1000 PTO Billet Side Covers (2001-2019 6.6L Duramax)

Sale price$89.99

Merchant Automotive

Merchant Automotive 10710 Deep Transmission Pan W/ Filter Lock Kit (2001-2019 6.6L Duramax)

Sale price$199.99

Merchant Automotive

Merchant Automotive 10711 Deep Transmission Pan W/ Filter Lock & Fluid (2001-2019 6.6L Duramax)

Sale price$339.99

Merchant Automotive

Merchant Automotive 10318 Torque Converter Housing Bolt Seal Set (2001-2019 6.6L Duramax)

Sale price$31.99

Merchant Automotive

Merchant Automotive 10478 Polyurethane Transmission Mount (2011-2019 6.6L Duramax)

Sale price$95.99

Merchant Automotive

Merchant Automotive 10357 Transmission Rear Housing Support (2011-2019 6.6L Duramax)

Sale price$149.99

Merchant Automotive

Merchant Automotive 10686 Pass Through Trans Connector Seal & Body (2001-2019 6.6L Duramax)

Sale price$45.99

Merchant Automotive

Merchant Automotive 10092 Torque Converter Bolt Kit (2001-2022 6.6L Duramax)

Sale price$13.99

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

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

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 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

Allison Transmission

Allison Transmission 29565365 Drain Plug Seal

Sale price$1.99

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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.