Transmissions & Drivetrains

2020+ Allison RatioTek Transmission Tuner Kit (RT-A10L-PR)

2020+ Allison RatioTek Extreme Transmission Tuner Kit (RT-A10L-PRX)

2011-2019 Duramax LML/L5P Transfer Case Brace (129021115)

2001-2019 Duramax Premium High-Efficiency Spin-On Transmission Fluid Filter (128059150)

2001-2019 Duramax PPE HD Cast Aluminum Transmission Pan (128052010)

2017-2023 Duramax L5P SoCal Billet Flex Plate

2006-2019 Duramax Performance Transmission Cooler Bar & Plate (12406XXXX)

2001-2019 Duramax PPE Deep Allison HD Aluminum Transmission Pan (128051010)

2017-2019 Duramax L5P Transmission Oil Thermal Bypass Valve (125065000)

2001-2019 Duramax PPE HD Cast Aluminum PTO Side Plate Cover (128060000 / 128060100)

Cummins/Duramax PPE Heavy Duty Aluminum Rear Differential Cover (138051010)

2001-2018 Duramax SunCoast Allison 1000/2000 Overhaul Complete Gasket Kit (T116002ASC)

2001-2019 Duramax Allison Deep Pan Filter Kit w/ Loc & Spin On (37710-12L)

Universal TorqLoc (1030395)

BD Diesel Xtrude Trans Cooler Double Stacked No Install Kit (1300601-DS)

2003-2018 Cummins/Duramax Rear Differential Cover (1061825)

Universial Xtrude Double Stacked Transmission Cooler Kit 1/2in Tubing (1030606-DS-12)

Universal Trans Pan/ Diff Cover Magnetic Drain Plug (1601613)

2017-2019 Duramax L5P Heavy Duty Replacement Transmission Cooler Lines (FPE-TL-L5P-1719)

Xtruded Trans Oil Cooler w/ Fan 5/8 inch Cooler Lines (1030606-5/8)

2001-2019 Duramax 6.6L Allison 1000 Randy's Transmission Stage 2 725HP (311241031)

2001-2019 Duramax 6.6L Allison 1000 Randy's Transmission Stage 3 900HP (311241033)

2001-2019 Duramax 6.6L Allison 1000 Randy's Transmission Stage 4 900+ HP (311241035)

2001-2016 Duramax 6.6L Allison Triple Disc Toque Converter (RT-A1000-TC)