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Piston and Piston Kits For Automatic Transmissions

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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...

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$124.38 - $124.38
$124.38
$124.38 - $124.38
$124.38
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Piston Kit Transtec ZF9HP48 948TE 2011/UP
$80.38 - $80.38
$80.38
$80.38 - $80.38
$80.38

Piston Kit Transtec ZF9HP48 948TE 2011/UP

Only 1 left!

Piston Kit Transtec ZF9HP48 948TE 2011/UP Transmissions: ZF9HP48 2011-UP, 948TE 2011-UP Vehicle ACURACDX, RLX 2016 9 SP F/4WD L4 2.0L V6 3.0LMDX, ...

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$80.38 - $80.38
$80.38
$80.38 - $80.38
$80.38
Overdrive And Intermediate Servo Pin Bore Sleeve Kit Sonnax 5R55N 5R55S 5R55W Sold Out
$67.78 - $67.78
$67.78
$67.78 - $67.78
$67.78

Overdrive And Intermediate Servo Pin Bore Sleeve Kit Sonnax 5R55N 5R55S 5R55W

Out of stock

Overdrive And Intermediate Servo Pin Bore Sleeve Kit for 5R55N, 5R55S, 5R55W Servo apply oil is channeled through the core of the case bridge and d...

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$67.78 - $67.78
$67.78
$67.78 - $67.78
$67.78
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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 ...

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$48.25 - $48.25
$48.25
$48.25 - $48.25
$48.25
Piston Molded Overrun Clutch 4L80E 4L85E MT1 MN8
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$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...

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$31.22 - $31.22
$31.22
$31.22 - $31.22
$31.22
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PISTON MOLDED FORWARD CLUTCH WITH CHECK BALL 5R55N, 5R55S, 5R55W
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$25.85 - $25.85
$25.85
$25.85 - $25.85
$25.85

PISTON MOLDED FORWARD CLUTCH WITH CHECK BALL 5R55N 5R55S 5R55W

Out of stock

PISTON MOLDED FORWARD CLUTCH WITH CHECK BALL 5R55N, 5R55S, 5R55W OD : 5.090” Transmissions: 5R55N 2001-UP, 5R55S 2001-UP, 5R55W 2001-UP1L2Z-7A262-...

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$25.85 - $25.85
$25.85
$25.85 - $25.85
$25.85
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Piston Overdrive Clutch (Orange Dot) (Double Lip) 5R55N 5R55W 5R55S
$23.37 - $23.37
$23.37
$23.37 - $23.37
$23.37

Piston Overdrive Clutch (Orange Dot) (Double Lip) 5R55N 5R55W 5R55S

in stock

Piston Overdrive Clutch (Orange Dot) (Double Lip) 5R55N 5R55W 5R55S OD: 2.575inTransmissions: 5R55N 1999-UP, 5R55S 1999-UP, 5R55W 1999-UP OEM Numb...

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$23.37 - $23.37
$23.37
$23.37 - $23.37
$23.37
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...

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$21.51 - $21.51
$21.51
$21.51 - $21.51
$21.51
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$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...

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$19.68 - $19.68
$19.68
$19.68 - $19.68
$19.68
$19.59 - $19.59
$19.59
$19.59 - $19.59
$19.59

Piston Molded Direct Hi-Per Blue 4L80E 4L85E MT1 MN8

in stock

Piston Molded Direct Hi-Per Blue 4L80E 4L85E MT1 MN8 Transmissions: 4L85E (MN8) 1997-UP, 4L80E (MT1) 1997-UPOEM Number: 24204961 Vehicle AM GENERA...

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$19.59 - $19.59
$19.59
$19.59 - $19.59
$19.59
Piston Molded Direct 4L80E 4L85E MT1 MN8
Sold Out
$18.80 - $18.80
$18.80
$18.80 - $18.80
$18.80

Piston Molded Direct 4L80E 4L85E MT1 MN8

Out of stock

Piston Molded Direct 4L80E 4L85E MT1 MN8 Transmissions: 4L85E (MN8) 1997-UP, 4L80E (MT1) 1997-UPOEM Number: 24204961 Vehicle AM GENERALH1 HUMMER 1...

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$18.80 - $18.80
$18.80
$18.80 - $18.80
$18.80
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$14.77 - $14.77
$14.77
$14.77 - $14.77
$14.77

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

in stock

Piston Molded Overrun Clutch Hi-Per Blue 4L80E 4L85E MT1 MN8 Transmissions: 4L85E (MN8) 1991-UP, 4L80E (MT1) 1991-UPOEM Number: 24202092, 8661567 ...

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$14.77 - $14.77
$14.77
$14.77 - $14.77
$14.77
Molded Sleeve and Lip Seal Forward Drum (with .086" Orifice) 4L80E 4L85E MT1 MN8
$10.82 - $10.82
$10.82
$10.82 - $10.82
$10.82

Molded Sleeve and Lip Seal Forward Drum (with .086 in Orifice) 4L80E 4L85E MT1 MN8

in stock

Molded Sleeve and Lip Seal Forward Drum (with .086" Orifice) 4L80E 4L85E MT1 MN8 Transmissions: 4L85E (MN8) 1997-UP, 4L80E (MT1) 1997-UP OEM Numbe...

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$10.82 - $10.82
$10.82
$10.82 - $10.82
$10.82
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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