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GM / Chevy Transmission Parts

Shop all GM and Chevrolet automatic transmission parts in one place. That covers the 4L60E, 4L60 / 700R4, 4L80E, 6L80 / 6L90, 8L90, 8L45, 10L80 / 10L90 and the Allison 10L1000. We carry overhaul an...

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GM / Chevy Transmission Parts

Shop all GM and Chevrolet automatic transmission parts in one place. That covers the 4L60E, 4L60 / 700R4, 4L80E, 6L80 / 6L90, 8L90, 8L45, 10L80 / 10L90 and the Allison 10L1000. We carry overhaul and master rebuild kits, friction and steel clutch plates, seals and gaskets, solenoids, filters, bushings, pistons, valve body parts and hard parts.

Use the search bar to find a part by number or keyword, or pick your transmission to narrow the list. Every part lists its fitment and part number so you can match it to your build.

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Allison 1000 / 2000 Wire Harness D121446E - GM automatic transmission - view 1 of 4
$166.24 - $166.24
$166.24
$166.24 - $166.24
$166.24

Allison 1000 / 2000 Wire Harness D121446E

Wire Harness for 1000 automatic transmissions. Part # D121446E from GM. Internal; 9 Connectors. Part #: D121446E Brand: GM Part type: Wire Harne...

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$166.24 - $166.24
$166.24
$166.24 - $166.24
$166.24
Allison 1000 / 2000 Wire Harness 121446E - Rostra Powertrain automatic transmission
$220.84 - $220.84
$220.84
$220.84 - $220.84
$220.84

Allison 1000 / 2000 Wire Harness 121446E

Wire Harness for 1000 automatic transmissions. Part # 121446E from Rostra Powertrain. With connector, 9 Connectors, Without G Solenoid & 4 Blue...

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$220.84 - $220.84
$220.84
$220.84 - $220.84
$220.84
Allison 1000 / 2000 Wire Harness D121446D - Dartco automatic transmission - view 1 of 4
$701.84 - $701.84
$701.84
$701.84 - $701.84
$701.84

Allison 1000 / 2000 Wire Harness D121446D

Wire Harness for 1000 automatic transmissions. Part # D121446D from Dartco. Internal; 9 Connectors with Gray Case. Part #: D121446D Brand: Dartco...

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$701.84 - $701.84
$701.84
$701.84 - $701.84
$701.84
Allison 1000 / 2000 Wire Harness D121446B - Dartco automatic transmission - view 1 of 4
$589.78 - $589.78
$589.78
$589.78 - $589.78
$589.78

Allison 1000 / 2000 Wire Harness D121446B

Wire Harness for 1000, 1000/M74 automatic transmissions. Part # D121446B from Dartco. Internal; 9 Connectors with Beige Case. Part #: D121446B Br...

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$589.78 - $589.78
$589.78
$589.78 - $589.78
$589.78
Allison 1000 / 2000 Wire Harness 121446A - Rostra Powertrain automatic transmission - view 1 of 4
$246.16 - $246.16
$246.16
$246.16 - $246.16
$246.16

Allison 1000 / 2000 Wire Harness 121446A

Wire Harness for 1000, 1000/M74 automatic transmissions. Part # 121446A from Rostra Powertrain. Internal; 8 Connectors with Gray Case; GM & All...

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$246.16 - $246.16
$246.16
$246.16 - $246.16
$246.16
Allison 1000 / 2000 Wire Harness 121446C - Rostra Powertrain automatic transmission - view 1 of 4
$251.31 - $251.31
$251.31
$251.31 - $251.31
$251.31

Allison 1000 / 2000 Wire Harness 121446C

Wire Harness for 1000, 1000/M74 automatic transmissions. Part # 121446C from Rostra Powertrain. Internal; 9 Connectors with Gray Case. Part #: 121...

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$251.31 - $251.31
$251.31
$251.31 - $251.31
$251.31
Allison 1000 / 2000 Wire Harness 121446 - Rostra Powertrain automatic transmission - view 1 of 4
$172.73 - $172.73
$172.73
$172.73 - $172.73
$172.73

Allison 1000 / 2000 Wire Harness 121446

Wire Harness for 1000/M74 automatic transmissions. Part # 121446 from Rostra Powertrain. Internal; 7 Connectors with Gray Case. Part #: 121446 Br...

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$172.73 - $172.73
$172.73
$172.73 - $172.73
$172.73
Allison 1000 / 2000 Wire Harness D121446 - Dartco automatic transmission - view 1 of 4
$649.45 - $649.45
$649.45
$649.45 - $649.45
$649.45

Allison 1000 / 2000 Wire Harness D121446

Wire Harness for 1000/M74 automatic transmissions. Part # D121446 from Dartco. Internal; 7 Connectors with Gray Case. Part #: D121446 Brand: Dart...

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$649.45 - $649.45
$649.45
$649.45 - $649.45
$649.45
External Harness Repair 105445 - Fits 10L80, 10R80 - Rostra Powertrain automatic transmission wire harness repair
$126.66 - $126.66
$126.66
$126.66 - $126.66
$126.66

External Harness Repair 105445 - Fits 10L80, 10R80

External Harness Repair for 10L80 and 10R80 automatic transmissions. Part # 105445 from Rostra Powertrain. 26 Pin Connector/Pigtail. Part #: 10544...

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$126.66 - $126.66
$126.66
$126.66 - $126.66
$126.66
4L80E Wire Harness Repair Kit 34445EK - Rostra Powertrain automatic transmission - view 1 of 4
$175.22 - $175.22
$175.22
$175.22 - $175.22
$175.22

4L80E Wire Harness Repair Kit 34445EK

Wire Harness Repair Kit for 4L80E, 4L85E automatic transmissions. Part # 34445EK from Rostra Powertrain. External. Part #: 34445EK Brand: Rostra ...

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$175.22 - $175.22
$175.22
$175.22 - $175.22
$175.22
4L80E Wire Harness Repair Kit 34446 - Rostra Powertrain automatic transmission - view 1 of 3
$171.44 - $171.44
$171.44
$171.44 - $171.44
$171.44

4L80E Wire Harness Repair Kit 34446

Wire Harness Repair Kit for 4L80E, THM-R2/MT1, 4L85E automatic transmissions. Part # 34446 from Rostra Powertrain. Internal **FOR PRE 1993 VEHICLES...

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$171.44 - $171.44
$171.44
$171.44 - $171.44
$171.44
4L80E Wire Harness Repair Kit 34446K - Rostra Powertrain automatic transmission - view 1 of 4
$124.95 - $124.95
$124.95
$124.95 - $124.95
$124.95

4L80E Wire Harness Repair Kit 34446K

Wire Harness Repair Kit for 4L80E, THM-R2/MT1, 4L85E automatic transmissions. Part # 34446K from Rostra Powertrain. Internal & External Repair;...

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$124.95 - $124.95
$124.95
$124.95 - $124.95
$124.95
4L80E Wire Harness Repair Kit 34446C - Rostra Powertrain automatic transmission - view 1 of 4
$175.42 - $175.42
$175.42
$175.42 - $175.42
$175.42

4L80E Wire Harness Repair Kit 34446C

Wire Harness Repair Kit for 4L80E, 4L85E automatic transmissions. Part # 34446C from Rostra Powertrain. Internal. Part #: 34446C Brand: Rostra Po...

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$175.42 - $175.42
$175.42
$175.42 - $175.42
$175.42
4L60E GM Wire Harness Repair Kit for the MLPS Switch (OEM #24221125) 1 Conn. 11 Pin Type 74446M - Rostra - view 1 of 4
$136.69 - $136.69
$136.69
$136.69 - $136.69
$136.69

4L60E GM Wire Harness Repair Kit for the MLPS Switch (OEM #24221125) 1 Conn. 11 Pin Type 74446M

GM Wire Harness Repair Kit for the MLPS Switch (OEM #24221125) 1 Conn. 11 Pin Type for 4L60E, 4L80E, 4L65E, 4L85E automatic transmissions. Part # 7...

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$136.69 - $136.69
$136.69
$136.69 - $136.69
$136.69
4L60E Wire Harness Repair Kit 74446CK - Rostra Powertrain automatic transmission - view 1 of 4
$50.83 - $50.83
$50.83
$50.83 - $50.83
$50.83

4L60E Wire Harness Repair Kit 74446CK

Wire Harness Repair Kit for 4L60E, 4L80E, 4T60-E, THM-R2/MT1 automatic transmissions. Part # 74446CK from Rostra Powertrain. External, 2 Pin VSS. ...

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$50.83 - $50.83
$50.83
$50.83 - $50.83
$50.83
4L60E Wire Harness Repair Kit 74445U - Rostra Powertrain automatic transmission - view 1 of 4
$157.55 - $157.55
$157.55
$157.55 - $157.55
$157.55

Wire Harness Repair Kit 74445U - Fits 4L60E, 4L80E, Allison 1000 / 2000

Wire Harness Repair Kit for 4L60E, 4L80E and Allison 1000 / 2000 automatic transmissions. Part # 74445U from Rostra Powertrain. GM Universal Extern...

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$157.55 - $157.55
$157.55
$157.55 - $157.55
$157.55
4L60E Wire Harness Repair Kit A74445A - TransJel automatic transmission
$20.91 - $20.91
$20.91
$20.91 - $20.91
$20.91

4L60E Wire Harness Repair Kit A74445A

Wire Harness Repair Kit for 4L60E, 4L60 / 700R4, 700R4 automatic transmissions. Part # A74445A from TransJel. External, 3 Prong Square, (Must be us...

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$20.91 - $20.91
$20.91
$20.91 - $20.91
$20.91
4L60E Wire Harness Repair Kit D74445A - GM automatic transmission
$87.81 - $87.81
$87.81
$87.81 - $87.81
$87.81

4L60E Wire Harness Repair Kit D74445A

Wire Harness Repair Kit for 4L60E, 4L60 / 700R4, 700R4 automatic transmissions. Part # D74445A from GM. External, 3 Prong Square. Part #: D74445A ...

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$87.81 - $87.81
$87.81
$87.81 - $87.81
$87.81
Rostra Powertrain Wire Harness Repair Kit 104445 - Fits 6L80, 6R80 - automatic transmission
$162.93 - $162.93
$162.93
$162.93 - $162.93
$162.93

Rostra Powertrain Wire Harness Repair Kit 104445 - Fits 6L80, 6R80

Wire Harness Repair Kit for 6L80 and 6R80 automatic transmissions. Part # 104445 from Rostra Powertrain. External Wire Repair Connector. Part #: 1...

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$162.93 - $162.93
$162.93
$162.93 - $162.93
$162.93
Connector 74444A - Fits 4L60 / 700R4, TH350 - TransJel automatic transmission connectors
$4.48 - $4.48
$4.48
$4.48 - $4.48
$4.48

Connector 74444A - Fits 4L60 / 700R4, TH350

Connector for 4L60 / 700R4 and TH350 automatic transmissions. Part # 74444A from TransJel. Case; 3 Prong; O-Ring Not Included. Part #: 74444A Bra...

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$4.48 - $4.48
$4.48
$4.48 - $4.48
$4.48
4L60 / 700R4 Connector 74444 - TransJel automatic transmission connectors
$16.69 - $16.69
$16.69
$16.69 - $16.69
$16.69

4L60 / 700R4 Connector 74444

Connector for 4L60 / 700R4, 700R4 automatic transmissions. Part # 74444 from TransJel. Case; 2 Prong. Part #: 74444 Brand: TransJel Part type: C...

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$16.69 - $16.69
$16.69
$16.69 - $16.69
$16.69
4L60 / 700R4 Connector 84444 - TransJel automatic transmission connectors
$4.52 - $4.52
$4.52
$4.52 - $4.52
$4.52

4L60 / 700R4 Connector 84444

Connector for 4L60 / 700R4, THM200-4R, 4L30-E, 700R4 automatic transmissions. Part # 84444 from TransJel. Case; Fits 4 Prong Square Only; O-Ring No...

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$4.52 - $4.52
$4.52
$4.52 - $4.52
$4.52
4L60 / 700R4 Connector D64444A - ACDelco automatic transmission connectors
$30.11 - $30.11
$30.11
$30.11 - $30.11
$30.11

4L60 / 700R4 Connector D64444A

Connector for 4L60 / 700R4, THM440/4T60/ME9 automatic transmissions. Part # D64444A from ACDelco. Case; Round 5 Prong Black. Part #: D64444A Bran...

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$30.11 - $30.11
$30.11
$30.11 - $30.11
$30.11
TH400 Connector 34444C - TransJel automatic transmission connectors
$11.81 - $11.81
$11.81
$11.81 - $11.81
$11.81

TH400 Connector 34444C

Connector for THM400 automatic transmissions. Part # 34444C from TransJel. 2 Prong without Variable Pitch; with Insulator. Part #: 34444C Brand: ...

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$11.81 - $11.81
$11.81
$11.81 - $11.81
$11.81

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