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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
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 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...

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$219.91 - $219.91
$219.91
$219.91 - $219.91
$219.91
Sold Out
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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
Piston Kit Transtec (5) TF60-SN TF62-SN 09G 09K
$173.05 - $173.05
$173.05
$173.05 - $173.05
$173.05

Piston Kit Transtec (5) TF60-SN TF62-SN 09G 09K

in stock

Piston Kit Transtec (5) TF60-SN TF62-SN 09G 09K Transmissions: 09K (TF-61SN) 2003-2013, 09G (TF-60SN) 2003-2013 Vehicle AUDIA3 2015-2016 6 SP FWD ...

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$173.05 - $173.05
$173.05
$173.05 - $173.05
$173.05
Piston Kit (4) 09G 09K
$78.06 - $78.06
$78.06
$78.06 - $78.06
$78.06

Piston Kit 09G 09K

in stock

Piston Kit (4) 09G 09K Transmissions: 09K (TF-61SN) 2003-UP, 09G (TF-60SN) 2003-UP Vehicle AUDIA3 2015-2016 6 SP FWD L4 1.4LQ3 2016 6 SP FWD L4 1....

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$78.06 - $78.06
$78.06
$78.06 - $78.06
$78.06
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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