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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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Friction Pack Raybestos Generation 2 Blue Plates TH400 M40 3L80
$216.42 - $216.42
$216.42
$216.42 - $216.42
$216.42

Friction Pack Raybestos Generation 2 Blue Plates TH400 M40 3L80

Only 1 left!

Friction Pack Raybestos Generation 2 Blue Plates TH400 M40 3L80 The Gen2 Blue Plate Special, the ultimate racing clutch for automatic transmissions...

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$216.42 - $216.42
$216.42
$216.42 - $216.42
$216.42
Shift Kit Transgo Street / Racing TH400
$181.20 - $181.20
$181.20
$181.20 - $181.20
$181.20

Shift Kit Transgo Street Racing TH400

Only 1 left!

TransGo Reprogramming Kit with Gear Command for All 400 (1965-ON) The TransGo Reprogramming Kit for the TH400 transmission offers enhanced automati...

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$181.20 - $181.20
$181.20
$181.20 - $181.20
$181.20
SHIFT KIT REPROGRAMING TRANSGO TH400 Sold Out
$147.30 - $147.30
$147.30
$147.30 - $147.30
$147.30

Shift Kit TRANSGO TH400

Out of stock

SHIFT KIT REPROGRAMING TRANSGO TH400 Transmissions: TH400 (M40,3L80) 1964-UP Vehicle AM GENERALH1 HUMMER 1992 3 SP 4WD V8 6.2L DIESELBENTLEYCornic...

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$147.30 - $147.30
$147.30
$147.30 - $147.30
$147.30
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Reprograming Kit Transgo TH400 M40 3L80 Sold Out
$126.93 - $126.93
$126.93
$126.93 - $126.93
$126.93

Reprograming Kit Transgo TH400 M40 3L80

Out of stock

Transgo Reprogramming Kit For TH400 This comprehensive kit is designed for heavy-duty and high-performance applications, offering expert valve body...

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$126.93 - $126.93
$126.93
$126.93 - $126.93
$126.93
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Sprag Intermediate HD 34 Element TH400 4L80E
$74.82 - $74.82
$74.82
$74.82 - $74.82
$74.82

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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$74.82 - $74.82
$74.82
$74.82 - $74.82
$74.82
Sonnax Case Saver Retainer for TH400 & '98-Earlier 4L80-E
$68.05 - $68.05
$68.05
$68.05 - $68.05
$68.05

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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$68.05 - $68.05
$68.05
$68.05 - $68.05
$68.05
Sonnax Line Pressure Booster Kit for TH400
$67.63 - $67.63
$67.63
$67.63 - $67.63
$67.63

Sonnax Line Pressure Booster Kit TH400 M40 3L80

Only 1 left!

Sonnax Line Pressure Booster Kit for TH400 The Sonnax Line Pressure Booster Kit for the TH400 transmission is designed to enhance your vehicle’s pe...

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$67.63 - $67.63
$67.63
$67.63 - $67.63
$67.63
Superior Shift Kit TH400
$65.39 - $65.39
$65.39
$65.39 - $65.39
$65.39

Superior Shift Kit TH400

in stock

Superior Shift Kit for TH400 The Superior TH400 valve body kit provides a comprehensive solution for both regular and heavy-duty applications, addr...

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$65.39 - $65.39
$65.39
$65.39 - $65.39
$65.39
Flywheel Jeep 360 Engine
Sold Out
$62.57 - $62.57
$62.57
$62.57 - $62.57
$62.57

Flywheel Jeep 360 Engine

Out of stock

Flywheel Jeep 360 Engine Transmissions: TH400 (M40,3L80) 1974-19795351821 Vehicle AM GENERALH1 HUMMER 1992 3 SP 4WD V8 6.2L DIESELBENTLEYCorniche ...

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$62.57 - $62.57
$62.57
$62.57 - $62.57
$62.57
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Overhaul Kit Transtec without Rear Metal Clad Seal TH400 M40 3L80 TH375 TH475
$58.32 - $58.32
$58.32
$58.32 - $58.32
$58.32

Overhaul Kit Transtec without Rear Metal Clad Seal TH400 3L80 TH375 TH475

Only 1 left!

Overhaul Kit Transtec without Rear Metal Clad Seal TH400 M40 3L80 TH375 TH475 Transmissions: TH475 1965-1996, TH375 1965-1996, TH400 (M40,3L80) 19...

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$58.32 - $58.32
$58.32
$58.32 - $58.32
$58.32
SHIFT KIT SUPERIOR WTH PLATE TH400 - Suntransmissions
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$50.42 - $50.42
$50.42
$50.42 - $50.42
$50.42

Shift Kit With Plate Superior TH400

Out of stock

Transgo SHIFT KIT Valve Body Repair Kit with Plate for TH400 1965/Up This repair kit is designed to address and rectify common issues associated wi...

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$50.42 - $50.42
$50.42
$50.42 - $50.42
$50.42
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Band Borg Warner Rear Reverse (New Design, Smooth Lining) TH400 4L80E 3L80 M40 MT1
$49.33 - $49.33
$49.33
$49.33 - $49.33
$49.33

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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$49.33 - $49.33
$49.33
$49.33 - $49.33
$49.33
VALVE BODY USED 6 CHECK BALL FLAT FILTER 1968/87 TH400
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$48.19 - $48.19
$48.19
$48.19 - $48.19
$48.19

Valve Body Used 6 Check Ball Flat Filter 1968/87 TH400

Out of stock

VALVE BODY USED 6 CHECK BALL FLAT FILTER 1968/87 TH400 Transmissions: TH400 (M40,3L80) 1968-1987VehicleAM GENERALH1 HUMMER 1992 3 SP 4WD V8 6.2L ...

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$48.19 - $48.19
$48.19
$48.19 - $48.19
$48.19
Sold Out
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Overhaul Kit Transtec without Rear Metal Clad Seal TH400 M40 3L80
$48.08 - $48.08
$48.08
$48.08 - $48.08
$48.08

Overhaul Kit Transtec without Rear Metal Clad Seal TH400 3L80

in stock

Overhaul Kit Transtec without Rear Metal Clad Seal TH400 M40 3L80 Transmissions: TH400 (M40,3L80) 1965-1996 Vehicle BENTLEYCorniche 1971-1996 3 SP...

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$48.08 - $48.08
$48.08
$48.08 - $48.08
$48.08
$47.12 - $47.12
$47.12
$47.12 - $47.12
$47.12

Overhaul Kit TH400

in stock

Overhaul Kit TH400 Transmissions: TH400 (M40,3L80) 1965-UPVehicleBUICKCentury 1973-1977 3 SP Electra, LeSabre 1974-1981 3 SP Regal 1969-1981 3 SP ...

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$47.12 - $47.12
$47.12
$47.12 - $47.12
$47.12
Modulator Black Red Stripe TH350 TH400 TH350C TH250 TH250C 3L80 M38 MV4 MX2 M31 M40
$45.18 - $45.18
$45.18
$45.18 - $45.18
$45.18

Modulator Black Red Stripe TH350 TH400 TH350C TH250 TH250C 3L80 M38 MV4 MX2 M31 M40

Only 1 left!

Modulator Black Red Stripe TH350 TH400 TH350C TH250 TH250C 3L80 M38 MV4 MX2 M31 M40 Adjustable Transmissions: TH350C (MX2) 1980-UP, TH250C 1980-UP...

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$45.18 - $45.18
$45.18
$45.18 - $45.18
$45.18
$41.63 - $41.63
$41.63
$41.63 - $41.63
$41.63

Filler Tube Assembly TH350 TH400 TH200

Only 1 left!

Filler Tube Assembly TH350 TH400 TH200 NOTE: This dipstick has a "flip-lock" style top. Transmissions: TH200 (MV9,M29,TH200C) 1976-UP, TH400 (M40,...

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$41.63 - $41.63
$41.63
$41.63 - $41.63
$41.63
Steel Pack TH400 M40 3L80 1965/95
Sold Out
$40.33 - $40.33
$40.33
$40.33 - $40.33
$40.33

Steel Pack TH400 M40 3L80 1965/95

Out of stock

Steel Pack TH400 M40 3L80 1965/95 Transmissions: TH400 (M40,3L80) 1965-1995 Vehicle BUICKCentury 1973-1977 3 SP Electra, LeSabre 1974-1981 3 SP Re...

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$40.33 - $40.33
$40.33
$40.33 - $40.33
$40.33
Sold Out
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Friction Pack Raybestos TH400 3L80 M40 1964/90
$40.13 - $40.13
$40.13
$40.13 - $40.13
$40.13

Friction Pack Raybestos TH400 3L80 M40 1964/90

Only 1 left!

Friction Pack Raybestos TH400 3L80 M40 1964/90 Transmissions: TH400 (M40,3L80) 1964-1990 Vehicle BUICKCentury 1973-1977 3 SP Electra, LeSabre 1974...

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$40.13 - $40.13
$40.13
$40.13 - $40.13
$40.13
Flywheel 6 Cyl Chevrolet Gmc 4.8L TH350 TH400
Save 55% Save %
$76.76
$76.76 - $76.76
$76.76
$34.19
$34.19 - $34.19
$34.19

Flywheel 6 Cyl Chevrolet Gmc 4.8L TH350 TH400

Only 1 left!

Flywheel 6 Cyl Chevrolet Gmc 4.8L TH350 TH400 Teeth 168 , Weight No , OD 14.13 in Transmissions: TH400 (M40,3L80) 1973-1989, TH350 (MV4,M38) 1973...

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$76.76
$76.76 - $76.76
$76.76
$34.19
$34.19 - $34.19
$34.19
Save 55% Save %
Modulator Single Red Stripe TH350 TH350C TH400 TH250 TH250C 1969/86
$33.88 - $33.88
$33.88
$33.88 - $33.88
$33.88

Modulator Single Red Stripe TH350 TH350C TH400 TH250 TH250C 1969/86

in stock

Modulator Single Red Stripe TH350 TH350C TH400 TH250 TH250C 1969/86 AdjustableTransmissions: TH250C 1980-UP, TH250 (M31) 1969-UP, TH350C (MX2) 198...

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$33.88 - $33.88
$33.88
$33.88 - $33.88
$33.88
Output & Reaction Planetary Rebuild Kit with .750" Wide Pinion Gears 4L80E TH400 M40 3L80 MT1
$32.97 - $32.97
$32.97
$32.97 - $32.97
$32.97

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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$32.97 - $32.97
$32.97
$32.97 - $32.97
$32.97
Washer Kit TH400 M40 3L80
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$20.15 - $20.15
$20.15
$20.15 - $20.15
$20.15

Washer Kit TH400 M40 3L80

Out of stock

Washer Kit TH400 M40 3L80 Transmissions: TH400 (M40,3L80) 1964-UP Vehicle AM GENERALH1 HUMMER 1992 3 SP 4WD V8 6.2L DIESELBENTLEYCorniche 1971-199...

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$20.15 - $20.15
$20.15
$20.15 - $20.15
$20.15
Sold Out
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Bushing Kit TH400 M40 3L80
$19.87 - $19.87
$19.87
$19.87 - $19.87
$19.87

Bushing Kit TH400 M40 3L80

in stock

Bushing Kit TH400 M40 3L80 Transmissions: TH400 (M40,3L80) 1964-UPVehicleAM GENERALH1 HUMMER 1992 3 SP 4WD V8 6.2L DIESELBENTLEYCorniche 1971-1996...

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$19.87 - $19.87
$19.87
$19.87 - $19.87
$19.87

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