Transmissions & Transmission Parts

GearStar GM 4L65E Level 4 Transmissions GS4L65EL4

Automatic Transmission, Up to 650 hp/600 ft. lbs, Rated Max, Level 4, 4L65E, RWD, 2,600 - 4,000 Stall, LS Bellhousing, Chevrolet, Kit

Part Number: GES-GS4L65EL4

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Apr 3, 2026 if ordered today

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Estimated Ship Date: Apr 3, 2026 if ordered today

Sonnax Zip Kits 10L80-G1-10R80-ZIP

ZIP KIT

Part Number: SOX-S0002

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Sonnax Zip Kits 6R140-ZIP

Automatic Transmission Shift Kits, Zip Kit, with Boost Valve, O-Ring Plugs, Accumulator Pistons, Spring, Sleeves, Ford, 6R140, Kit

Part Number: SOX-6R140-ZIP

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

Sonnax Automatic Transmission Electro-Hydraulic Control Modules GM6LTEHCMC6

*REMAN TEHCM

Part Number: SOX-GM6LTEHCMC6

4.0 out of 5 stars ( 2 )

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FAST EZ-TCU Automatic Transmission Controllers 30282-KIT

Automatic Transmission Controller, EZ-TCU, Kit

Part Number: FST-30282-KIT

4.6 out of 5 stars ( 5 )

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Need It Sooner? We recommend these similar substitute parts:

DIYAutoTune MicroSquirt CAN Transmission Controllers MS3Ph-Trans_4L80-PKG

2.75 out of 5 stars ( 3 )

Estimated Ship Date: Today

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RevMax High Performance Towing/HD Valve Bodies 68RFE-301

Valve Body, Cast Aluminum,Towing/HD. Dodge, 68RE, White Plug, Each

Part Number: RVM-68RFE-301

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

American Powertrain ProFit Tremec TKX Manual Transmission and Installation Kits for 1967-1973 COUGAR, 1965-1973 MUSTANG - COFO-M1EX

Transmission Combo, ProFit, Tremec TKX, 5-Speed, 2.87:1 First Gear, 0.68:1 Fifth Gear, Ford, Cougar, Mustang 1965-73, Kit

Part Number: AWR-COFO-M1EX

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

BD Diesel Tap Shifters 1031360

Automatic Transmission Controller, Tap Shifter, Chevy, GMC, Allison 1000, Kit

Part Number: BDD-1031360

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

Advance Adapters AX15 Transmission and Bronco Dana 20 Adapter Kits for 1966-1977 BRONCO - 27-3525

Transmission, AX15, Manual, 5-speed, 1.125 in. - 10-spline Input, Aluminum Case, Ford, 4WD, Each

Part Number: ADD-27-3525

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

American Powertrain ProFit Tremec TKX Manual Transmission and Installation Kits for 1968-1972 CHEVELLE, EL CAMINO - COGM-A2FX

Transmission Combo, ProFit, Tremec TKX, 5-Speed, 2.87:1 First Gear, 0.68:1 Fifth Gear, Chevy, A-Body, 1968-72, Kit

Part Number: AWR-COGM-A2FX

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

GearStar GM 4L60E Level 3 Transmissions GS4L60EL3

Automatic Transmission, Up to 500 hp/500 ft. lbs, Max, Level 3, One Piece Case, 4L60E, RWD, 2,600 - 3,600 Stall, LT Bellhousing, Chevrolet, Kit

Part Number: GES-GS4L60EL3

Not Yet Reviewed

Estimated Ship Date: Apr 3, 2026 if ordered today

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Estimated Ship Date: Apr 3, 2026 if ordered today

American Powertrain ProFit Tremec TKX Manual Transmission and Installation Kits for 1970-1974 CAMARO, FIREBIRD - COGM-F2FX

Transmission Combo, ProFit, Tremec TKX, 5-Speed, 2.87:1 First Gear, 0.68:1 Fifth Gear, GM, F-Body, 1970-74, Kit

Part Number: AWR-COGM-F2FX

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

GearStar GM 4L80E Level 3 Transmissions GS4L804X4LS3

GM 4L80E Four wheel drive 4 speed overdrive automatic transmission designed for LS style engines. Level 3

Part Number: GES-GS4L804X4LS3

Not Yet Reviewed

Estimated Ship Date: Apr 3, 2026 if ordered today

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Estimated Ship Date: Apr 3, 2026 if ordered today

RevMax Billet High Performance Towing/HD Valve Bodies 68RFE-301B

Valve Body, Billett Aluminum,Towing/HD. Dodge, 68RE, Blue Plug, Each

Part Number: RVM-68RFE-301B

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

GearStar GM 4L65E Level 3 Transmissions GS4L65EHEML3

GM 4L65E two piece case two wheel drive 4 speed overdrive automatic transmissions with Gen III Hemi bellhousing. Level 3

Part Number: GES-GS4L65EHEML3

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

Fleece Performance AlliLocker Converter Lockup Controllers FPE-ALILKR

TORQUE CONVERTER CONTROLLER, 2001-2015 ALLILOCKER - ALLISON

Part Number: FLE-FPE-ALILKR

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

RevMax High Performance Towing/HD Valve Bodies 68RFE-300

Valve Body, Cast Aluminum,Towing/HD. Dodge, 68RE, Each

Part Number: RVM-68RFE-300

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Shiftworks 4LE Linkage Fix-It Kits 4LE-C

Shiftworks 4LE Linkage Fix-It Kits 4LE-C

Linkage Kit, Steel, Zinc Plated, 4LE Transmissions, Kit

Part Number: SIW-4LEC

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Mopar Replacement Clutch Slave Cylinder Components 05273461AA

Clutch Slave Cylinder Component, Adapter, Chrysler, Dodge, Jeep, Each

Part Number: MOP-05273461AA

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Richmond Gear Manual Transmission Replacement Parts T1035

Manual Trans Reverse Idler Gear

Part Number: RMG-T1035

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

BD Diesel Torq Un-Loc Systems 1030398

Torque Converter Lock Up Kit, Torq Un-Loc, GM 6.5L Turbo Diesel, 4L60E, Kit

Part Number: BDD-1030398

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

Advance Adapters Automatic Transmission Lockup Kits 24-700R

*700R STAND ALONE TQUE CONV. LOCKUP KIT

Part Number: ADD-24-700R

Not Yet Reviewed

Estimated Ship Date: Apr 23, 2026 if ordered today

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Estimated Ship Date: Apr 23, 2026 if ordered today

GearStar GM 4L80E Level 4 Transmissions GS4L804X4LS4

GM 4L80E Four wheel drive 4 speed overdrive automatic transmission designed for LS style engines. Level 4

Part Number: GES-GS4L804X4LS4

Not Yet Reviewed