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TH400 (3L80)

Discover a comprehensive range of high-quality Automatic Transmission Parts for the TH400 (3L80) at Sun Transmissions. Our extensive selection includes everything from torque converters, transmission rebuild kits, and valve bodies to specialized components like clutch boost springs, heavy-duty input shafts, and overrun clutch hubs. Catering to both repair and performance upgrades, our products are designed to enhance durability and efficiency. Whether you're looking for molded rubber pistons, wiring harnesses, or seal and gasket kits, our inventory covers a wide spectrum of needs. Each part is meticulously crafted to ensure optimal performance and longevity, making Sun Transmissions your go-to destination for TH400 (3L80) transmission solutions.

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Sprag Intermediate HD 34 Element TH400 4L80E
$113.72 - $113.72
$113.72
$113.72 - $113.72
$113.72

Sprag Intermediate HD 34 Element TH400 4L80E

in stock

Sprag Intermediate HD 34 Element TH400 4L80E Transmissions: TH400 (M40,3L80) 1964-UP, 4L80E (MT1) 1991-UPOEM Number: 8633173 Vehicle ASTON MARTIND...

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$113.72 - $113.72
$113.72
$113.72 - $113.72
$113.72
Sonnax Case Saver Retainer for TH400 & '98-Earlier 4L80-E
$66.01 - $66.01
$66.01
$66.01 - $66.01
$66.01

Sonnax Case Saver Retainer TH400 4L80E M40 3L80 MT1

in stock

Sonnax Case Saver Retainer for TH400 & '98-Earlier 4L80-E The Sonnax case saver retainer 34762-10 is the only intermediate clutch retaining rin...

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$66.01 - $66.01
$66.01
$66.01 - $66.01
$66.01
Band Borg Warner Rear Reverse (New Design, Smooth Lining) TH400 4L80E 3L80 M40 MT1
$46.04 - $46.04
$46.04
$46.04 - $46.04
$46.04

Band Borg Warner Rear Reverse (New Design Smooth Lining) TH400 4L80E 3L80 M40 MT1

in stock

Band Borg Warner Rear Reverse (New Design, Smooth Lining) TH400 4L80E 3L80 M40 MT1 Transmissions: TH400 (M40,3L80) 1964-UP, 4L80E (MT1) 1991-UP OE...

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$46.04 - $46.04
$46.04
$46.04 - $46.04
$46.04
Output & Reaction Planetary Rebuild Kit with .750" Wide Pinion Gears 4L80E TH400 M40 3L80 MT1
$31.97 - $31.97
$31.97
$31.97 - $31.97
$31.97

Output And Reaction Planetary Rebuild Kit with .750"" Wide Pinion Gears 4L80E TH400 M40 3L80 M

in stock

Sonnax Planetary Rebuild Kit for 4L80-E, TH400 Transmissions Optimize the performance of your TH400 or '98-earlier 4L80-E transmission with the Son...

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$31.97 - $31.97
$31.97
$31.97 - $31.97
$31.97
BUSHING CASE SONNAX TH400, 4L80E 4L85E - Suntransmissions
$20.79 - $20.79
$20.79
$20.79 - $20.79
$20.79

Bushing Case Sonnax TH400 4L80E 4L85E

Only 1 left!

BUSHING CASE SONNAX "NO WALK OUT" TH400, 4L80E, 4L85E The OE case bushing in vehicles with a GM THM-400, 4L80-E and 4L85-E transmissions tends to w...

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$20.79 - $20.79
$20.79
$20.79 - $20.79
$20.79
Sprag Rear Low Clutch Roller Type FMX TH400 TH425 4L80E AOD AODE 4R70W 4R70E 4R75W 4R75E
$15.66 - $15.66
$15.66
$15.66 - $15.66
$15.66

Sprag Rear Low Clutch Roller Type FMX TH400 TH425 4L80E AOD AODE 4R70W 4R70E 4R75W 4R75E

in stock

Sprag Rear Low Clutch Roller Type FMX TH400 TH425 4L80E AOD AODE 4R70W 4R70E 4R75W 4R75E Transmissions: 4R75W (4R75E) 2003-UP, 4R70E 2003-UP, 4R70...

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$15.66 - $15.66
$15.66
$15.66 - $15.66
$15.66
$8.74 - $8.74
$8.74
$8.74 - $8.74
$8.74

Valve Body Checkball Package Various Transmissions

in stock

Valve Body Checkballs – Set of 10 This set includes 10 high-performance checkballs (.250" size) made from durable, wear-resistant imidized plastic....

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$8.74 - $8.74
$8.74
$8.74 - $8.74
$8.74
Friction Plate Raybestos Direct and Forward Clutch High Energy [10-11] TH400 4L80E 3L80 MT1 M40
$3.62 - $3.62
$3.62
$3.62 - $3.62
$3.62

Friction Plate Raybestos Direct and Forward Clutch High Energy TH400 4L80E 3L80 MT1 M40

in stock

Friction Plate Raybestos Direct and Forward Clutch High Energy [10-11] TH400 4L80E 3L80 MT1 M40 Transmissions: 4L80E (MT1) 1991-UP, TH400 (M40,3L8...

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$3.62 - $3.62
$3.62
$3.62 - $3.62
$3.62
FRICTION PLATE ALLOMATIC INTERMEDIATE TH400, 4L80E - Suntransmissions
Sold Out
$3.38 - $3.38
$3.38
$3.38 - $3.38
$3.38

Friction Plate Allomatic Intermediate TH400 4L80E

Out of stock

FRICTION PLATE ALLOMATIC INTERMEDIATE TH400, 4L80E Transmissions: 4L80E (4L85E) 1964-1990, TH400 1964-1990 Vehicle AM GENERALH1 HUMMER 1993-2005 4...

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$3.38 - $3.38
$3.38
$3.38 - $3.38
$3.38
Sold Out
Notify When Available
$2.97 - $2.97
$2.97
$2.97 - $2.97
$2.97

Metal Clad Seal Extension Housing (Large) (W/O Boot) 2.705in OD TH400

in stock

Metal Clad Seal Extension Housing (Large) (Without Boot) TH400 M40 3L80 MT1 MN8  2.705” OD, 1.829” ID (Truck Type) (Without Boot) Transmissions: 4...

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$2.97 - $2.97
$2.97
$2.97 - $2.97
$2.97
Friction Plate Raybestos Forward & Direct Clutch [10-11] TH400 TH425 4L80E 4L85E 3L80 M40
$2.75 - $2.75
$2.75
$2.75 - $2.75
$2.75

Friction Plate Raybestos Forward & Direct Clutch [10-11] TH400 TH425 4L80E 4L85E 3L80 M40

in stock

Friction Plate Raybestos Forward & Direct Clutch [10-11] TH400 TH425 4L80E 4L85E 3L80 M40 THICK .080” , 42T , OD: 5.895" Transmissions: 4L85E ...

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$2.75 - $2.75
$2.75
$2.75 - $2.75
$2.75
STEEL PLATE DIRECT CLUTCH 0.090in. TH400, 4L80E, 4TH AND FOWARD AT540 - Suntransmissions
$2.61 - $2.61
$2.61
$2.61 - $2.61
$2.61

Steel Plate Direct Clutch 0.090in. TH400 4L80E 4TH And Foward AT540

in stock

STEEL PLATE DIRECT CLUTCH 0.090in. TH400, 4L80E, 4TH AND FOWARD AT540 Transmissions: AT540 (AT543) 1968-UP, TH400 (M40,3L80) 1968-UP, 4L80E (MT1) ...

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$2.61 - $2.61
$2.61
$2.61 - $2.61
$2.61
FRICTINO PLATE ALLOMTIC FOWARD AND DIRECT (WAFFLE) 4L80E, TH400
$2.54 - $2.54
$2.54
$2.54 - $2.54
$2.54

Friction Plate Allomatic Forward Direct Clutch WAFFLE TH400 4L80E

in stock

FRICTION PLATE ALLOMATIC FORWARD DIRECT CLUTCH WAFFLE TH400, 4L80ETransmissions: TH400 (M40,3L80) 1964-UP, 4L80E (MT1) 1964-UP Vehicle AM GENERALH...

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$2.54 - $2.54
$2.54
$2.54 - $2.54
$2.54
FRICTION PLATE ALLOMATIC FOWARD AND DIRECT CLUTCH TH400, 4L80E
$2.39 - $2.39
$2.39
$2.39 - $2.39
$2.39

Friction Plate Allomatic Foward And Direct Clutch TH400 4L80E

in stock

FRICTION PLATE ALLOMATIC FOWARD AND DIRECT CLUTCH TH400, 4L80E USES 11 FRICTION PLATES Transmissions: TH400 (M40,3L80) 2000, 4L80E (MT1) 2000 Vehi...

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$2.39 - $2.39
$2.39
$2.39 - $2.39
$2.39
STEEL PLATE FORWARD CLUTCH, FLAT.077in TH400, 4L80E - Suntransmissions
$2.33 - $2.33
$2.33
$2.33 - $2.33
$2.33

Steel Plate Forward Clutch Flat 0.077in TH400 4L80E

in stock

STEEL PLATE FORWARD CLUTCH TH400, 4L80E FLAT 0.077in Transmissions: TH400 (M40,3L80) 1965-UP, 4L80E (MT1) 1965-UP OEM Number: 41525, 8623849 Vehic...

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$2.33 - $2.33
$2.33
$2.33 - $2.33
$2.33
O-Ring Front Pump (Lip Seal) TH400 TH700-R4 4L60E 4L65E 4L80E AT540
$2.06 - $2.06
$2.06
$2.06 - $2.06
$2.06

O-Ring Front Pump (Lip Seal) TH400 TH700-R4 4L60E 4L65E 4L80E AT540

in stock

O-Ring Front Pump (Lip Seal) TH400 TH700-R4 4L60E 4L65E 4L80E AT540 Transmissions: AT540 (AT543) 1970-UP, 4L65E (M32) 1997-2003, TH700-R4 (TH700R4...

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$2.06 - $2.06
$2.06
$2.06 - $2.06
$2.06
Metal Clad Seal Manual Lever TH350 TH400 4L80E TH700-R4 4L60E 6L45 6L50 6L80 6L90 1000 AT540 AT545
$1.22 - $1.22
$1.22
$1.22 - $1.22
$1.22

Metal Clad Seal Manual Lever TH350 TH400 4L80E TH700-R4 4L60E 6L45 6L50 6L80 6L90 1000 AT540 AT545

in stock

Metal Clad Seal Manual Lever TH350 TH400 4L80E TH700-R4 4L60E 6L45 6L50 6L80 6L90 1000 AT540 AT545 Transmissions: ST300 1964-1969, AT545 1970-UP, ...

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$1.22 - $1.22
$1.22
$1.22 - $1.22
$1.22
$0.76 - $0.76
$0.76
$0.76 - $0.76
$0.76

Boot Filler Tube (Top Hat Design) TH700 TH125C TH180C 4L30E TH200C TH200-4R TH250C TH350C TH400 4L80

in stock

Boot Filler Tube (Top Hat Design) TH700 TH125C TH180C 4L30E TH200C TH200-4R TH250C TH350C TH400 4L80 Transmissions: CD4E (LA4A-EL,LA4AEL) 1994-UP,...

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$0.76 - $0.76
$0.76
$0.76 - $0.76
$0.76

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