L5P Duramax Allison Transmission

L5P Duramax Allison Transmission Pans

L5P Duramax Allison transmission parts are designed for maximum performance, durability, and reliability on 2017+ Chevy and GMC 6.6L diesel trucks. Ideal for towing, hauling, and high-performance applications, these premium components protect your transmission, improve shift quality, and extend drivetrain life—essential upgrades for diesel owners seeking long-lasting performance and peace of mind.

83 Items

Duramax 01-10 Heavy Duty Allison PTO Side Plate Covers PPE 128060000 — Duramax 01-10 Heavy Duty Allison PTO Side Plate Covers PPE 128060000 $71.99
Fits: Duramax 2001-2010

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Duramax 01-19 Deep Pan Transmission Filter Allison 29542824 — Duramax 01-19 Deep Pan Transmission Filter Allison 29542824 $42.35
Fits: Duramax 2001-2019

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Xtruded Aux Transmission Cooler BD 1300611-HX — Xtruded Aux Transmission Cooler BD 1300611-HX $227.64
Fits: Universal

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Xtruded Aux Transmission Cooler w|Fan BD 1300611 — Xtruded Aux Transmission Cooler w|Fan BD 1300611 $340.95
Fits: Universal

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Duramax Heavy Duty Flex Plate BD 1041260 — Duramax Heavy Duty Flex Plate BD 1041260 $454.95
Fits: Duramax 2001-2018

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Duramax 2001-2019 Pro Guard D2 Transmission Filter (Spin On) AFE 44-TF001 — Duramax 2001-2019 Pro Guard D2 Transmission Filter (Spin On) AFE 44-TF001 $40.84
Fits: Duramax 2001-2019

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Duramax Flex Plate Bolt GM 11610965 — Duramax Flex Plate Bolt GM 11610965 $6.40
Fits: Duramax 2001-2022

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Duramax C|D|E|G Shift Valve Solenoid Allison 29536833 — Duramax C|D|E|G Shift Valve Solenoid Allison 29536833 $35.31
Fits: Duramax 2001-2019

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Duramax Pressure Switch Assembly Allison 29546972 — Duramax Pressure Switch Assembly Allison 29546972 $99.89
Fits: Duramax 2001-2019

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Duramax B-Trim Pressure Control Solenoid Allison 29541896 — Duramax B-Trim Pressure Control Solenoid Allison 29541896 $185.01
Fits: Duramax 2006-2018

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Duramax A-Trim Pressure Control Solenoid Allison 29541895 — Duramax A-Trim Pressure Control Solenoid Allison 29541895 $184.06
Fits: Duramax 2006-2019

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Duramax Allison F-TCC Solenoid Allison 29541898 — Duramax Allison F-TCC Solenoid Allison 29541898 $177.88
Fits: Duramax 2006-2018

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LML|L5P Duramax Internal Transmission Wiring Harness GM 29545307 — Sold Out
LML|L5P Duramax Internal Transmission Wiring Harness GM 29545307 $132.17
Fits: LML|L5P Duramax 2011-2019

Duramax 15-18 Transmission Speed Sensor GM 24276402 — Duramax 15-18 Transmission Speed Sensor GM 24276402 $80.55
Fits: Duramax 2015-2018 (New Style Sensor)

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Universal Transmission Cooler Electric Fan BD 1030607 — Universal Transmission Cooler Electric Fan BD 1030607 $85.95
Fits: Universal - 80 Watts, 10 in, 800CFM

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L5P Duramax Transmission Oil Thermal Bypass Valve PPE 125065000 — L5P Duramax Transmission Oil Thermal Bypass Valve PPE 125065000 $89.99
Fits: L5P Duramax 2017-2019

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L5P Duramax Bar & Plate Performance Transmission Cooler PPE 124065000 — L5P Duramax Bar & Plate Performance Transmission Cooler PPE 124065000 $350.99
Fits: L5P Duramax 2017-2019

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Allison PTO Cover Gasket Allison 29561637 — Allison PTO Cover Gasket Allison 29561637 $14.20
Fits: Allison 1000 Series Transmissions

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LML|L5P Duramax EPC Solenoid Fooler Plug XDP XD345 — LML|L5P Duramax EPC Solenoid Fooler Plug XDP XD345 $58.95
Fits: LML/L5P Duramax 2011-2019

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L5P Duramax Transmission Cooler Mishimoto MMTC-DMAX-17SL — L5P Duramax Transmission Cooler Mishimoto MMTC-DMAX-17SL $550.95
Fits: L5P Duramax 2017-2019

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Universal Transmission Fluid Cooler Mishimoto MMTC-TF-2075 — Universal Transmission Fluid Cooler Mishimoto MMTC-TF-2075 $108.95
Fits: Universal - 20 x 7.5 x .75 (3/8 Fittings)

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Duramax 1000 C2 Hub Thrust Washer Allison 29537515 — Duramax 1000 C2 Hub Thrust Washer Allison 29537515 $13.93
Fits: Duramax 2001-2019

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Duramax Transfer Case Fill Plug AcDelco 15032997 — Duramax Transfer Case Fill Plug AcDelco 15032997 $10.03
Fits: Duramax 2007.5-2019

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Duramax Allison 1000 Transmission Cooler Line Clip - Blue GM 88960976 — Duramax Allison 1000 Transmission Cooler Line Clip - Blue GM 88960976 $11.43
Fits: Duramax 2001-2010 | 2017-2019

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L5P Duramax 10 Speed Allison Internal Transmission Filter AcDelco 24298004 — L5P Duramax 10 Speed Allison Internal Transmission Filter AcDelco 24298004 $81.97
Fits: L5P Duramax 2020-2023

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Duramax 01-19 1000 Transmission C1 Clutch Housing Seal Allison 29545377 — Duramax 01-19 1000 Transmission C1 Clutch Housing Seal Allison 29545377 $7.83
Fits: Duramax 2001-2019

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Duramax 1000 Pump Housing Gasket Allison 29540130 — Duramax 1000 Pump Housing Gasket Allison 29540130 $28.41
Fits: 2500/3500HD Silverado Sierra 6.6L V8 Duramax 2001-2019

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Duramax Allison 1000 Transmission Stator Support Bushing Allison 29538159 — Duramax Allison 1000 Transmission Stator Support Bushing Allison 29538159 $18.23
Fits: GM 2500HD 2001-2019 | 3500 Duramax Silver 2001-2019

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Duramax 2001-2019 1000 Rear Adapter Housing Gasket Allison 29536941 — Duramax 2001-2019 1000 Rear Adapter Housing Gasket Allison 29536941 $38.53
Fits: 2500HD 3500 Silverado Sierra 6.6L V8 Duramax Diesel 2001-2019

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Duramax 01-19 Allison 1000 Transmission Bell Housing Dust Shield Allison 29536835 — Duramax 01-19 Allison 1000 Transmission Bell Housing Dust Shield Allison 29536835 $3.96
Fits: GM 2500HD/3500HD Duramax Silverado | Sierra 2001-2019

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Duramax 07.5-22 Transfer Case Mode Fork With Electronic Shift GM 19133041 — Duramax 07.5-22 Transfer Case Mode Fork With Electronic Shift GM 19133041 $136.61
Fits: Duramax 2007.5-2022 (MP1326 Electric Shift Case)

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Duramax 01-19 1000 Front Pump Bushing Allison 29536703 — Duramax 01-19 1000 Front Pump Bushing Allison 29536703 $88.04
Fits: Duramax 2001-2019

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Duramax 01-19 Allison 1000 Transmission Converter Housing Gasket Allison 29536478 — Duramax 01-19 Allison 1000 Transmission Converter Housing Gasket Allison 29536478 $26.83
Fits: GM 2500HD | Duramax Silver 2001-2019

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Duramax 07.5-19 Transfer Case Mode Slider GM 19133094 — Duramax 07.5-19 Transfer Case Mode Slider GM 19133094 $133.29
Fits: Duramax 2007.5-2019

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Duramax 07.5-22 Transfer Case Drive Sprocket Snap Spring GM 19133113 — Duramax 07.5-22 Transfer Case Drive Sprocket Snap Spring GM 19133113 $1.45
Fits: Duramax 2007.5-2022

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Allison 1000 Transmission Spin On Filter Magnet Allison 29535617 — Allison 1000 Transmission Spin On Filter Magnet Allison 29535617 $13.05
Fits: Allison 1000 Transmissions 2001-2019

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Duramax 11-19 Transfer Case Front Input Seal GM 19299081 — Duramax 11-19 Transfer Case Front Input Seal GM 19299081 $44.83
Fits: 2500HD 3500 Silverado | Sierra 2011-2019

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Duramax 07.5-19 Transfer Case Reluctor GM 19133124 — Duramax 07.5-19 Transfer Case Reluctor GM 19133124 $19.41
Fits: Duramax 2007.5-2019

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Duramax 07-18 Transfer Case Rear Output Bearing Mainshaft Snap Ring GM 19133126 — Duramax 07-18 Transfer Case Rear Output Bearing Mainshaft Snap Ring GM 19133126 $6.56
Fits: Duramax 2007-2018

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Duramax 07-19 Transfer Case Driven Sprocket GM 19133135 — Duramax 07-19 Transfer Case Driven Sprocket GM 19133135 $86.07
Fits: Duramax 2007-2019

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Duramax 01-19 Allison 1000 Cooler Line Retainer Allison 11611873 — Duramax 01-19 Allison 1000 Cooler Line Retainer Allison 11611873 $4.15
Fits: Duramax 2001-2019

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Duramax 07.5-22 1000 Transmission Bell Housing Bolt Allison 11546890 — Duramax 07.5-22 1000 Transmission Bell Housing Bolt Allison 11546890 $8.49
Fits: 2500HD/3500 Silverado | Sierra 2007.5-2022

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Duramax 07.5-22 Transfer Case Rear Output Seal AcDelco 24226707 — Duramax 07.5-22 Transfer Case Rear Output Seal AcDelco 24226707 $53.76
Fits: 2500/3500HD Silverado | Sierra 2007.5-2022

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Duramax 03-19 Allison 1000 Transmission Cooler Line Fitting AcDelco 88996645 — Duramax 03-19 Allison 1000 Transmission Cooler Line Fitting AcDelco 88996645 $50.84
Fits: 2500/3500HD Silverado | Sierra 2003-2019

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Duramax Transmission Case Locator Pin GM 97228317 — Duramax Transmission Case Locator Pin GM 97228317 $13.04
Fits: 2500/3500HD Silverado Sierra 2001-2022

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Duramax 07.5-19 Transfer Case Plug With Magnet AcDelco 19133162 — Duramax 07.5-19 Transfer Case Plug With Magnet AcDelco 19133162 $14.24
Fits: Duramax 2007.5-2019

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Duramax 07-22 Transfer Case 4WD Actuator Seal GM 19133170 — Duramax 07-22 Transfer Case 4WD Actuator Seal GM 19133170 $17.65
Fits: Duramax 2007-2022

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Duramax 07.5-19 Transfer Case Friction Ring Synchronize Kit GM 19133208 — Duramax 07.5-19 Transfer Case Friction Ring Synchronize Kit GM 19133208 $172.93
Fits: Duramax 2007.5-2019

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LML | L5P Duramax Transfer case Front Output Seal Deflector GM 23292441 — LML | L5P Duramax Transfer case Front Output Seal Deflector GM 23292441 $11.83
Fits: LML | L5P Duramax 2011-2019

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LML | L5P Duramax Transfer Case Input Shaft GM 19299089l — LML | L5P Duramax Transfer Case Input Shaft GM 19299089l $200.71
Fits: LML | L5P Duramax 2011-2019

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Duramax 11-21 Transfer Case Adapter Gasket AcDelco 84003884 — Duramax 11-21 Transfer Case Adapter Gasket AcDelco 84003884 $8.66
Fits: 2500/3500HD Silverado | Sierra 2011-2021

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Duramax 01-19 Allison Transmission Case Vent AcDelco 6882757 — Duramax 01-19 Allison Transmission Case Vent AcDelco 6882757 $9.71
Fits: 2500/3500HD Silverado | Sierra 2001-2019

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Duramax 11-19 Allison 1000 Rear Output Shaft Nut GM 29547443 — Duramax 11-19 Allison 1000 Rear Output Shaft Nut GM 29547443 $41.39
Fits: 2500/3500HD Silverado | Sierra 2011-2019

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Duramax 06-19 Allison 6 Speed Transmission Fluid Pump Kit AcDelco 29546965 — Duramax 06-19 Allison 6 Speed Transmission Fluid Pump Kit AcDelco 29546965 $559.80
Fits: 2500/3500HD Silverado Sierra 2006-2019

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1000 P1 Drive Flange Allison 29546706 — 1000 P1 Drive Flange Allison 29546706 $41.91
Fits: Allison 1000 Transmission 2001-2019

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Duramax 06-19 Allison 1000 Transmission C2 Clutch Piston Inner Seal Allison 29542808 — Duramax 06-19 Allison 1000 Transmission C2 Clutch Piston Inner Seal Allison 29542808 $7.18
Fits: 2500HD/3500 Silverado | Sierra 2006-2019

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Duramax 06-19 NSBU (Neutral Start Back Up) Switch Allison 29542692 — Duramax 06-19 NSBU (Neutral Start Back Up) Switch Allison 29542692 $184.71
Fits: 2500/3500HD Silverado | Sierra 2006-2019

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Duramax 06-19 Allison T5 Bearing GM 29541702 — Duramax 06-19 Allison T5 Bearing GM 29541702 $22.59
Fits: 2500HD/3500 Silverado | Sierra 2006-2019

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Duramax 01-19 1000 Transmission T1 and T6 Bearing Allison 29539501 — Duramax 01-19 1000 Transmission T1 and T6 Bearing Allison 29539501 $36.51
Fits: 2500HD/3500 Silverado | Sierra 2001-2019

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Duramax 01-19 1000 Transmission C5 Clutch Piston Inner Seal Allison 29536859 — Duramax 01-19 1000 Transmission C5 Clutch Piston Inner Seal Allison 29536859 $14.49
Fits: 2500HD/3500 Silverado | Sierra 2001-2019

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Duramax 01-19 Allison 1000 Power Take Off Cover Gasket AcDelco 29531325 — Duramax 01-19 Allison 1000 Power Take Off Cover Gasket AcDelco 29531325 $10.05
Fits: 2500HD/3500 Silverado | Sierra 2001-2019

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Duramax 01-19 Allison Output Shaft Carrier Bearing (Rear Housing) AcDelco 29531151 — Duramax 01-19 Allison Output Shaft Carrier Bearing (Rear Housing) AcDelco 29531151 $103.87
Fits: 2500HD/3500 Silverado | Sierra 2001-2019

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Duramax 01-19 T4 Bearing Allison 29531106 — Duramax 01-19 T4 Bearing Allison 29531106 $17.84
Fits: Duramax 2001-2019

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Duramax 01-19 Allison 1000 T3/T5 Bearing AcDelco 29531095 — Duramax 01-19 Allison 1000 T3/T5 Bearing AcDelco 29531095 $17.90
Fits: Duramax 2001-2019

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Duramax 06-19 Allison 1000 Transmission C1 C2 Clutch Piston Outer Seal Allison 24269245 — Duramax 06-19 Allison 1000 Transmission C1 C2 Clutch Piston Outer Seal Allison 24269245 $10.26
Fits: Duramax 2006-2019

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Duramax 15-19 1000 Valve Body Spacer Plate With Gasket Allison 24262540 — Duramax 15-19 1000 Valve Body Spacer Plate With Gasket Allison 24262540 $24.28
Fits: 2500HD/3500 Silverado | Sierra 2015-2019

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Transmission Drain Plug GM 24234212 — Transmission Drain Plug GM 24234212 $9.52
Fits: Chevy Colorado | GMC Canyon 2015-2019

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Duramax 01-21 Round Transmission Bell Housing Plug GM 24205899 — Duramax 01-21 Round Transmission Bell Housing Plug GM 24205899 $12.49
Fits: 2500HD/3500 Silverado | Sierra 2001-2021

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Duramax 11-19 Front Drive Axle Inner Shaft Seal GM 23196678 — Duramax 11-19 Front Drive Axle Inner Shaft Seal GM 23196678 $95.11
Fits: Duramax 2011-2019

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Duramax 01-19 Transmission Internal Retaining Ring Allison 29536981 — Duramax 01-19 Transmission Internal Retaining Ring Allison 29536981 $35.23
Fits: 2500HD/3500 Silverado | Sierra 2001-2019

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Sun Coast A1-FLT-LOC-D Allison Deep Pan Filter Loc — Sun Coast A1-FLT-LOC-D Allison Deep Pan Filter Loc $37.80
Fits: 2001-2019 Duramax (W/ Allison Deep Filter)

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Sun Coast A1-FLT-LOC-S Allison Filter Loc — Sun Coast A1-FLT-LOC-S Allison Filter Loc $35.10
Fits: 2001-2019 Duramax (W/ Allison Shallow Pan Filter)

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PPE 128058700 Deep Pan Transmission Filter — PPE 128058700 Deep Pan Transmission Filter $16.19
Fits: Duramax 2001-2019 (Allison 1000/2000/2400 Series Trans.

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Bar & Plate Transmission Fluid Cooler PPE 124066000 — Bar & Plate Transmission Fluid Cooler PPE 124066000 $350.99
Fits: L5P Duramax 2020-2024

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LML|L5P Duramax EPC Solenoid Blocker PPE 128041119 — LML|L5P Duramax EPC Solenoid Blocker PPE 128041119 $49.49
Fits: LML|L5P Duramax 2011-2019

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Universal Transmission Fluid Cooler Mishimoto MMTC-TF-1575 — Universal Transmission Fluid Cooler Mishimoto MMTC-TF-1575 $88.95
Fits: Universal - 15" X 7.5" X 0.75" (3/8" Fittings)

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L5P Duramax Billet Flex Plate Sun Coast A1-BFP-4 — L5P Duramax Billet Flex Plate Sun Coast A1-BFP-4 $445.50
Fits: L5P Duramax 2017-2019 Allison 1000

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Duramax 03-19 Transmission Cooler Line Fitting ATS 3140054272 — Duramax 03-19 Transmission Cooler Line Fitting ATS 3140054272 $35.00
Fits: Duramax 2003-2019

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L5P Duramax Transmission Thermal Bypass Valve Mishimoto MMTC-L5P-TBV — L5P Duramax Transmission Thermal Bypass Valve Mishimoto MMTC-L5P-TBV $147.95
Fits: 2017-2019 L5P Duramax

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L5P Duramax Full-Flow Transmission Thermal Bypass Valve Mishimoto MMTC-L5P-TBVFF — L5P Duramax Full-Flow Transmission Thermal Bypass Valve Mishimoto MMTC-L5P-TBVFF $118.95
Fits: L5P Duramax 2017-2019

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Duramax 01-19 Front Pump Seal Allison 29546682 — Duramax 01-19 Front Pump Seal Allison 29546682 $41.45
Fits: 2500HD/3500HD Silverado | Sierra 2001-2019

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Duramax 2011-2019 Internal Wire Harness Seal and O-ring (7-Pack) Fleece FPE-HAR-GM-LCT-SEAL-7P — Duramax 2011-2019 Internal Wire Harness Seal and O-ring (7-Pack) Fleece FPE-HAR-GM-LCT-SEAL-7P $139.99
Fits: Duramax 2011-2019 (Allison 1000/2000 and GM 4T65-E)

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L5P Duramax 10L1000 Cat 1 Rebuild Kit with Raybestos Clutches and Steels Suncoast SC-10L1000-CAT1-R — L5P Duramax 10L1000 Cat 1 Rebuild Kit with Raybestos Clutches and Steels Suncoast SC-10L1000-CAT1-R $2,065.50
Fits: L5P Duramax 2020-2026 10L1000

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