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GMC, (2015-2016), LML, Transmission

Shop Transmission by Category

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

Calibrated Power Solutions Built Allison Transmission DT750 w/ Torque Converter (2011-2016 6.6L Duramax)

BD Diesel 1064754SM Allison 1000 4WD Transmission Package & Pressure Controller (2011-2016 Duramax)

BD Diesel 1064754 Allison 1000 4WD Transmission & Pressure Controller (22011-2016 Duramax)

Complete Transmissions 4

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)

PPE Raw Heavy Duty PTO Side Plate Covers (2001-2016 6.6L Duramax)

Allison Transmission 29561637 PTO Cover Gasket

Transmission Parts 90

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AFE (1)

Allison Transmission (4)

ATS Diesel Performance (14)

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BD Diesel (13)

Calibrated Power / DuramaxTuner (1)

Fleece Performance Engineering (3)

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Hot Shot's Secret (8)

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AFE (1) Allison Transmission (4) ATS Diesel Performance (14) Banks Power (1) BD Diesel (13) Calibrated Power / DuramaxTuner (1) Fleece Performance Engineering (3) Gator Fasteners (1) Hot Shot's Secret (8) Lucas Oil (1) Mag-Hytec (2) Merchant Automotive (13) Mishimoto Performance Parts (10) Pacific Performance Engineering (16) Wehrli Custom Fabrication (1) XDP MFG (4)

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93 products

Hot Shot's Secret

Hot Shot's Secret Blue Diamond Type F Transmission Fluid (1 Gal)

Sale price$65.99

Hot Shot's Secret

Hot Shot's Secret ADRENALINE Pro Shift +4 Transmission Fluid (1 Gal)

Sale price$65.99

Hot Shot's Secret

Hot Shot's Secret Shift Restore Transmission Fluid Additive TSE

Sale priceFrom $31.99

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

Fleece FPE - ALILKR AlliLocker (2001 - 2016 Duramax) - Southern Diesel Supply

Fleece Performance Engineering

Fleece Performance Engineering FPE-ALILKR AlliLocker (2001-2016 Duramax)

Sale price$187.99

Calibrated Power / DuramaxTuner

Calibrated Power Solutions Built Allison Transmission DT750 w/ Torque Converter (2011-2016 6.6L Duramax)

Sale price$6,145.99

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 1071240 Triple Torque Force Torque Converter (Enhanced Stall 2001-2016 Duramax)

Sale price$1,715.99

BD Diesel

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

Sale price$198.99

BD Diesel

BD Diesel 1064754SM Allison 1000 4WD Transmission Package & Pressure Controller (2011-2016 Duramax)

Sale price$6,049.99

BD Diesel

BD Diesel 1062226 Stage 3 Transmission Build-It Kit (2011-2016 Duramax)

Sale price$2,681.99

BD Diesel

BD Diesel 1062227 Stage 4 Transmission Build-It Kit & Pressure Controller (2011-2016 Duramax)

Sale price$3,075.99

BD Diesel

BD Diesel 1064754 Allison 1000 4WD Transmission & Pressure Controller (22011-2016 Duramax)

Sale price$4,545.99

BD Diesel

BD Diesel 1030606 Auxiliary Transmission Cooler (1999-2010 Power Stroke; 2001-2016 Duramax; 1994-2016 Cummins)

Sale priceFrom $735.99

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

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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.