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Piston and Piston Kits For Automatic Transmissions

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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...

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$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...

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$323.28 - $323.28
$323.28
$323.28 - $323.28
$323.28
Piston Kit AW80-40LE AW80-40LS AW81-40LE U440E, U441E
$245.06 - $245.06
$245.06
$245.06 - $245.06
$245.06

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

Only 1 left!

Piston Kit AW80-40LE AW80-40LS AW81-40LE U440E, U441E Transmissions: U441E (AW81-40LE,AW80-40LE,U440E) 1999-2008 Vehicle BUICKEXCELLE/EXCELLE HRV ...

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$245.06 - $245.06
$245.06
$245.06 - $245.06
$245.06
$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...

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$226.66 - $226.66
$226.66
$226.66 - $226.66
$226.66
Piston Kit Gen 2 Transtec 6T35 6T40 6T45 2012/UP
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$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...

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$219.91 - $219.91
$219.91
$219.91 - $219.91
$219.91
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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 ...

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$215.86 - $215.86
$215.86
$215.86 - $215.86
$215.86
$203.75 - $203.75
$203.75
$203.75 - $203.75
$203.75

Piston Kit (3) U880E U880F U881E U881F AWF8F35 TG-80SC AWF8F45 AF50-8 TG-81SC

in stock

Piston Kit (3) U880E U880F U881E U881F AWF8F35 TG-80SC AWF8F45 AF50-8 TG-81SC Transmissions: AWF8F45 (TG-81SC,AF50-8) 2013-UP, AWF8F35 (8F45,U881F...

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$203.75 - $203.75
$203.75
$203.75 - $203.75
$203.75
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...

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$179.67 - $179.67
$179.67
$179.67 - $179.67
$179.67
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$161.91 - $161.91
$161.91
$161.91 - $161.91
$161.91

Piston KIT (7) 4T40E MN5 ME7 MN4 4T45E

Out of stock

Piston KIT (7) 4T40E MN5 ME7 MN4 4T45E Transmissions: 4T40E (MN5,ME7,MN4,4T45E) 1995-UP Vehicle BUICKSKYLARK 1997 4 SP FWD L4 2.4LCHEVROLETCAVALIE...

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$161.91 - $161.91
$161.91
$161.91 - $161.91
$161.91
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Piston Kit (4) TF-81SC TF-80SC AF21 AW6AX-EL AF21B AW6AX-E AW6A-EL MXE AM6 AF40-6 AF40
$158.57 - $158.57
$158.57
$158.57 - $158.57
$158.57

Piston Kit TF-81SC TF-80SC AF21 AW6AX-EL AF21B AW6AX-E AW6A-EL MXE AM6 AF40-6 AF40

Only 1 left!

Piston Kit (4) TF-81SC TF-80SC AF21 AW6AX-EL AF21B AW6AX-E AW6A-EL MXE AM6 AF40-6 AF40 Transmissions: TF-81SC (AF21,AW6AX-EL,AF21B,AW6AX-E) 2005-2...

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$158.57 - $158.57
$158.57
$158.57 - $158.57
$158.57
Piston Kit (5) 6F50 6F55 6T70 6T75 2007/12
$149.97 - $149.97
$149.97
$149.97 - $149.97
$149.97

Piston Kit 6F50 6F55 6T70 6T75 2007/12

in stock

Piston Kit 6F50 6F55 6T70 6T75 2007/12 Transmissions: 6T75 2007-2012, 6F55 2007-2012, 6F50 2007-2012, 6T70 (MH4,MH2) 2007-2012 Vehicle BUICKENCLAV...

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$149.97 - $149.97
$149.97
$149.97 - $149.97
$149.97
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...

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$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...

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$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
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$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...

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$124.38 - $124.38
$124.38
$124.38 - $124.38
$124.38
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$118.07 - $118.07
$118.07
$118.07 - $118.07
$118.07

Piston Kit Hi-Per Blue 1st And 2nd Generation 6T30 MH9

in stock

Piston Kit (5) Hi-Per Blue 1st And 2nd Generation 6T30 MH9 Piston Kit has 5 Pistons Hi-Per Blue.Transmissions: 6T30 (MH9) 2008-2018 Vehicle BUICKE...

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$118.07 - $118.07
$118.07
$118.07 - $118.07
$118.07
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$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...

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$114.37 - $114.37
$114.37
$114.37 - $114.37
$114.37
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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...

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$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...

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$90.27 - $90.27
$90.27
$90.27 - $90.27
$90.27
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$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...

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$71.03 - $71.03
$71.03
$71.03 - $71.03
$71.03
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Piston Kit (3) 4L60E 4L65E 4L70E 1997/UP
$70.27 - $70.27
$70.27
$70.27 - $70.27
$70.27

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

in stock

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

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$70.27 - $70.27
$70.27
$70.27 - $70.27
$70.27
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$69.67 - $69.67
$69.67
$69.67 - $69.67
$69.67

Piston Aluminum OE Redesigned 1st-2nd-3rd-4th Clutch 6L80 6L90 MYC MYD LY6

Out of stock

Piston Aluminum OE Redesigned 1st-2nd-3rd-4th Clutch 6L80 6L90 MYC MYD LY6 Transmissions: 6L90 (MYD,LY6,6L90E) 2006-UP, 6L80 (MYC,6L80E) 2006-UPOE...

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$69.67 - $69.67
$69.67
$69.67 - $69.67
$69.67
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Piston With O'rings 2007/UP JF015E
$67.17 - $67.17
$67.17
$67.17 - $67.17
$67.17

CVT Transmission Pulley Piston Rebuild Kit 2007/UP JF015E

Only 1 left!

CVT Transmission Pulley Piston Rebuild Kit 2007/UP JF015E Transmissions: JF015E (RE0F11A) 2007-UP Vehicle CHEVROLETSPARK 2012-2016 CVT FWD L3 1.0L...

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$67.17 - $67.17
$67.17
$67.17 - $67.17
$67.17
$56.71 - $56.71
$56.71
$56.71 - $56.71
$56.71

Piston Kit (2) JR405E RC4A-EL

in stock

Piston Kit (2) JR405E RC4A-EL Transmissions: JR405E (RC4A-EL,JR405) 2004-UP Vehicle CHEVROLETCOLORADO 2004-2011 4 SP R/4WD L4 2.4L 2.8L 3.0LISUZUA...

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$56.71 - $56.71
$56.71
$56.71 - $56.71
$56.71
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) ...

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$52.78 - $52.78
$52.78
$52.78 - $52.78
$52.78
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.

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