Skip to content
Free Shipping on Orders greater than $90.00.
Free Shipping on Orders greater than $90.00.

Piston and Piston Kits For Automatic Transmissions

Filters

Piston Kit Transtec (5) 6L45 6L50 MYA MYB
$332.95 - $332.95
$332.95
$332.95 - $332.95
$332.95

Piston Kit Transtec 6L45 6L50 MYA MYB

in stock

Piston Kit Transtec (5) 6L45 6L50 MYA MYB Transmissions: 6L50 (6L50E,MYB) 2006-UP, 6L45 (6L45E,MYA) 2006-UP Vehicle BMW1-SERIES 2006-2013 6 SP RWD...

View full details
$332.95 - $332.95
$332.95
$332.95 - $332.95
$332.95
$323.28 - $323.28
$323.28
$323.28 - $323.28
$323.28

Apply Piston Kit 4th-5th-6th Clutch High Capacity 6L80 6L90 MYC MYD LY6

Only 1 left!

Sonnax High Capacity 4-5-6 Clutch Apply Piston Kit for 6L80, 6L90 Designed for use with OE-style, 36-tooth friction plates and original-equipment s...

View full details
$323.28 - $323.28
$323.28
$323.28 - $323.28
$323.28
$226.66 - $226.66
$226.66
$226.66 - $226.66
$226.66

Piston Kit 1st Gen 6T40 2008/12

Only 1 left!

Piston Kit 1st Gen 6T40 2008/12  Contains 5 Pistons.Transmissions: 6T40 (6T40E,X23F) 2008-2012 Vehicle BUICKALPHEON 2012 6 SP FWD L4 2.4LENCORE 20...

View full details
$226.66 - $226.66
$226.66
$226.66 - $226.66
$226.66
Piston Kit Gen 2 Transtec 6T35 6T40 6T45 2012/UP Sold Out
$219.91 - $219.91
$219.91
$219.91 - $219.91
$219.91

Piston Kit Gen 2 Transtec 6T35 6T40 6T45 2012/UP

Out of stock

Piston Kit Gen 2 Transtec 6T35 6T40 6T45 2012/UP Transmissions: 6T45 (6T45E,MH7) 2012-UP, 6T40 (6T40E,X23F) 2012-UP, 6T35 2012-UP Vehicle BUICKALP...

View full details
$219.91 - $219.91
$219.91
$219.91 - $219.91
$219.91
Sold Out
Notify When Available
Piston Kit Transtec 3ra Gen GMC 2014/UP 6T40 6T45
$215.86 - $215.86
$215.86
$215.86 - $215.86
$215.86

Piston Kit Transtec 3rd GEN GMC 2014/UP 6T40 6T45

Only 1 left!

Piston Kit Transtec 3ra Gen GMC 2014/UP 6T40 6T45 Transmissions: 6T40 (6T40E,X23F) 2014-UP Vehicle BUICKALPHEON 2014-2015 6 SP FWD L4 2.4LCASCADA ...

View full details
$215.86 - $215.86
$215.86
$215.86 - $215.86
$215.86
Piston Sonnax 1-2-3-4 Heavy Duty Fits 24224146 2006/07 24266364 24238700 2007/UP 6L80 6L90
$179.67 - $179.67
$179.67
$179.67 - $179.67
$179.67

Piston Sonnax 1-2-3-4 Heavy Duty Fits 24224146 2006/07 24266364 24238700 2007/UP 6L80 6L90

Only 1 left!

The Heavy Duty 1-2-3-4 Piston for 6L80, 6L90 Transmissions From Sonnax Compatibility: Fits 2006–2007 units using OE part number 24224146 Fits 2007...

View full details
$179.67 - $179.67
$179.67
$179.67 - $179.67
$179.67
Piston Kit 2WD 4L40E 5L40E 5L50E MX5 M82 MV3 M22
$147.21 - $147.21
$147.21
$147.21 - $147.21
$147.21

Piston Kit 2WD 4L40E 5L40E 5L50E MX5 M82 MV3 M22

in stock

Piston Kit 2WD 4L40E 5L40E 5L50E MX5 M82 MV3 M22 Transmissions: 4L40E 1999-UP, 5L40E (MX5,M82) 1999-UP, 5L50E (MV3,M22) 1999-UP Vehicle BMW3-SERIE...

View full details
$147.21 - $147.21
$147.21
$147.21 - $147.21
$147.21
Piston Kit Transtec 9T45 9T50 9T60 9T65 2017/UP
$129.58 - $129.58
$129.58
$129.58 - $129.58
$129.58

Piston Kit Transtec 9T45 9T50 9T60 9T65 2017/UP

in stock

Piston Kit Transtec 9T45 9T50 9T60 9T65 2017/UP Transmissions: 9T50 (9T65,9T60,9T45) 2017-UPVehicleBUICKEnclave, Regal Sportback 2018-2020 9 SPD F...

View full details
$129.58 - $129.58
$129.58
$129.58 - $129.58
$129.58
Piston Kit Transtec (4) TF-81SC TF-80SC AF21 AF40 AW6A-EL MXE AM6 AW6AX-EL AW6AX-E 2005/11
Sold Out
$124.38 - $124.38
$124.38
$124.38 - $124.38
$124.38

Piston Kit Transtec TF-81SC TF-80SC AF21 AF40 AW6A-EL MXE AM6 AW6AX-EL AW6AX-E 2005/11

Out of stock

Piston Kit Transtec (4) TF-81SC TF-80SC AF21 AF40 AW6A-EL MXE AM6 AW6AX-EL AW6AX-E 2005/11 Transmissions: TF-80SC (AW6A-EL,MXE,AM6,AF40-6,AF40,TF8...

View full details
$124.38 - $124.38
$124.38
$124.38 - $124.38
$124.38
Sold Out
Notify When Available
Sold Out
$114.37 - $114.37
$114.37
$114.37 - $114.37
$114.37

Piston Kit Hi-Per Blue 6L80 6L90 MYC MYD LY6

Out of stock

6L80 / 6L90 Hi-Per Blue Bonded Piston Kit Upgrade your GM 6-speed transmission with the Hi-Per Blue Bonded Piston Kit, engineered for 6L80 (MYC) an...

View full details
$114.37 - $114.37
$114.37
$114.37 - $114.37
$114.37
Sold Out
Notify When Available
Piston Kit (5) 6L80 6L90 MYC MYD LY6
$104.86 - $104.86
$104.86
$104.86 - $104.86
$104.86

Piston Kit (5) 6L80 6L90 MYC MYD LY6

in stock

Piston Kit (5) 6L80 6L90 MYC MYD LY6 Transmissions: 6L80 (MYC,6L80E) 2006-UP, 6L90 (MYD,LY6,6L90E) 2006-UP Vehicle AM GENERALH2/H2 SUT HUMMER 2006...

View full details
$104.86 - $104.86
$104.86
$104.86 - $104.86
$104.86
$90.27 - $90.27
$90.27
$90.27 - $90.27
$90.27

Piston Kit (3) 9T45 9T50 9T60 9T65 2017/UP

in stock

Piston Kit (3) 9T45 9T50 9T60 9T65 2017/UP Transmissions: 9T50 (9T65,9T60,9T45) 2017-UP Vehicle BUICKRegal Sportback 2018-2020 9 SPD FWDEnvision 2...

View full details
$90.27 - $90.27
$90.27
$90.27 - $90.27
$90.27
Sold Out
$71.03 - $71.03
$71.03
$71.03 - $71.03
$71.03

Signal Accumulator Piston Kit Sonnax 8L45 8L90

Out of stock

Sonnax Signal Accumulator Piston Kit – Fits GM 8L45 & 8L90 In GM 8L45 and 8L90 transmissions, excessive wear in the signal accumulator piston b...

View full details
$71.03 - $71.03
$71.03
$71.03 - $71.03
$71.03
Sold Out
Notify When Available
Piston Kit (2) AW80-40LE AW80-40LS AW81-40LE U440E U441E
$52.78 - $52.78
$52.78
$52.78 - $52.78
$52.78

Piston Kit AW80-40LE AW80-40LS AW81-40LE U440E U441E

in stock

Piston Kit (2) AW80-40LE AW80-40LS AW81-40LE U440E U441E Without Reverse Piston with Forward DrumTransmissions: U441E (AW81-40LE,AW80-40LE,U440E) ...

View full details
$52.78 - $52.78
$52.78
$52.78 - $52.78
$52.78
Piston Kit (3) 4L80E 4L85E MT1 MN8
$48.25 - $48.25
$48.25
$48.25 - $48.25
$48.25

Piston Kit 4L80E 4L85E MT1 MN8

in stock

Piston Kit (3) 4L80E 4L85E MT1 MN8 KIT INCLUDES DIRECT, FORWARD (WITHOUT SLEEVE) AND OVERDRIVE PISTONS. Transmissions: 4L85E (MN8) 1997-UP, 4L80E ...

View full details
$48.25 - $48.25
$48.25
$48.25 - $48.25
$48.25
Piston Molded 2nd-6th Clutch (18 Notch) 6L80 6L90 MYC MYD LY6
Sold Out
$40.96 - $40.96
$40.96
$40.96 - $40.96
$40.96

Piston Molded 2nd-6th Clutch (18 Notch) 6L80 6L90 MYC MYD LY6

Out of stock

Piston Molded 2nd-6th Clutch (18 Notch) 6L80 6L90 MYC MYD LY6 THICK .875” , OD: 7 15/16” , ID: 6 1/2” Transmissions: 6L90 (MYD,LY6,6L90E) 2006-UP,...

View full details
$40.96 - $40.96
$40.96
$40.96 - $40.96
$40.96
Sold Out
Notify When Available
Sold Out
$37.51 - $37.51
$37.51
$37.51 - $37.51
$37.51

Piston Molded 2nd-6th Clutch (18 Notch) Hi-Per Blue 6L80 6L90 MYC MYD LY6

Out of stock

Piston Molded 2nd-6th Clutch (18 Notch) Hi-Per Blue 6L80 6L90 MYC MYD LY6 THICK .875in , OD: 7 15/16in , ID: 6 1/2in Transmissions: 6L90 (MYD,LY6,...

View full details
$37.51 - $37.51
$37.51
$37.51 - $37.51
$37.51
Sold Out
Notify When Available
Piston Kit (3) 4L60E 4L65E 4L70E 1997/UP
Sold Out
$36.69 - $36.69
$36.69
$36.69 - $36.69
$36.69

Piston Kit (3) 4L60E 4L65E 4L70E 1997/UP

Out of stock

Piston Kit 4L60E 4L65E 4L70E 1997/UP Contains1 x Piston Molded Overdrive Clutch TH700-R4, 4L60E, 4L65E, 4L70E 1 x Piston Molded 3Rd-4Th Clutch TH70...

View full details
$36.69 - $36.69
$36.69
$36.69 - $36.69
$36.69
Sold Out
Notify When Available
Piston Molded Low Reverse Clutch (12 Notch) 6L80 6L90 MYC MYD LY6
Sold Out
$35.85 - $35.85
$35.85
$35.85 - $35.85
$35.85

Piston Molded Low Reverse Clutch (12 Notch) 6L80 6L90 MYC MYD LY6

Out of stock

Piston Molded Low Reverse Clutch (12 Notch) 6L80 6L90 MYC MYD LY6 THICK .705”, OD: 7” , ID: 3 3/8” Transmissions: 6L90 (MYD,LY6,6L90E) 2006-UP, 6L...

View full details
$35.85 - $35.85
$35.85
$35.85 - $35.85
$35.85
Sold Out
Notify When Available
Sold Out
$32.83 - $32.83
$32.83
$32.83 - $32.83
$32.83

Piston Molded Hi-Per Blue Low Reverse Clutch (12 Notch) 6L80 6L90 MYC MYD LY6

Out of stock

Piston Molded Hi-Per Blue Low Reverse Clutch (12 Notch) 6L80 6L90 MYC MYD LY6 THICK .705in , OD: 7in , ID: 3 3/8in Transmissions: 6L90 (MYD,LY6,6L...

View full details
$32.83 - $32.83
$32.83
$32.83 - $32.83
$32.83
Sold Out
Notify When Available
Piston Molded Overrun Clutch 4L80E 4L85E MT1 MN8
Sold Out
$31.22 - $31.22
$31.22
$31.22 - $31.22
$31.22

Piston Molded Overrun Clutch 4L80E 4L85E MT1 MN8

Out of stock

Piston Molded Overrun Clutch 4L80E 4L85E MT1 MN8 Transmissions: 4L85E (MN8) 1991-UP, 4L80E (MT1) 1991-UPOEM Number: 24202092, 8661567 Vehicle AM G...

View full details
$31.22 - $31.22
$31.22
$31.22 - $31.22
$31.22
Sold Out
Notify When Available
Kit Piston Accumulator Sonnax 1st-2nd Clutch TH125 3T40 TH125C M34 MD9
$22.44 - $22.44
$22.44
$22.44 - $22.44
$22.44

Kit Piston Accumulator Sonnax 1st-2nd Clutch TH125 3T40 TH125C M34 MD9

in stock

Kit Piston Accumulator Sonnax 1st-2nd Clutch TH125 3T40 TH125C M34 MD9 GM vehicles with 125 or 3T40 transmissions may have problems with burnt forw...

View full details
$22.44 - $22.44
$22.44
$22.44 - $22.44
$22.44
Piston Molded Forward Clutch 4L80E 4L85E MT1 MN8
Sold Out
$21.51 - $21.51
$21.51
$21.51 - $21.51
$21.51

Piston Molded Forward Clutch 4L80E 4L85E MT1 MN8

Out of stock

Piston Molded Forward Clutch 4L80E 4L85E MT1 MN8 Transmissions: 4L85E (MN8) 1997-UP, 4L80E (MT1) 1997-UP OEM Number: 24204957 Vehicle AM GENERALH1...

View full details
$21.51 - $21.51
$21.51
$21.51 - $21.51
$21.51
Sold Out
Notify When Available
$19.68 - $19.68
$19.68
$19.68 - $19.68
$19.68

Piston Molded Forward Clutch Hi-Per Blue 4L80E 4L85E MT1 MN8

in stock

Piston Molded Forward Clutch Hi-Per Blue 4L80E 4L85E MT1 MN8 Transmissions: 4L85E (MN8) 1997-UP, 4L80E (MT1) 1997-UPOEM Number: 24204957 Vehicle A...

View full details
$19.68 - $19.68
$19.68
$19.68 - $19.68
$19.68
Discover a complete selection of piston kits and servo kits engineered for automatic transmissions. At Sun Transmissions, we stock OEM-quality transmission pistons, individual servo pistons, and complete piston rebuild kits compatible with all major transmission brands and models.
Each piston kit is precisely machined and built to meet high performance standards—helping prevent blow-by, sticking, and overheating in clutch assemblies. Designed for durability and reliability, our pistons are ideal for professional rebuilds and heavy-duty applications.
Our catalog includes accumulator pistons, servo pistons, and direct clutch pistons for a wide range of domestic and import transmissions such as 4L60E, 42RLE, 6T40, 5R110W, and more.
Enjoy fast U.S. shipping, expert technical support, and trusted quality for every automatic transmission rebuild.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare