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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
$50.81 - $50.81
$50.81
$50.81 - $50.81
$50.81

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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$50.81 - $50.81
$50.81
$50.81 - $50.81
$50.81
Modulator Black Red Stripe TH350 TH400 TH350C TH250 TH250C 3L80 M38 MV4 MX2 M31 M40 Sold Out
$46.89 - $46.89
$46.89
$46.89 - $46.89
$46.89

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

Out of stock

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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$46.89 - $46.89
$46.89
$46.89 - $46.89
$46.89
Sold Out
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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
$32.36 - $32.36
$32.36
$32.36 - $32.36
$32.36

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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$32.36 - $32.36
$32.36
$32.36 - $32.36
$32.36
Washer Kit TH400 M40 3L80
$25.42 - $25.42
$25.42
$25.42 - $25.42
$25.42

Washer Kit TH400 M40 3L80

in stock

Washer Kit TH400 M40 3L80 Transmissions: TH400 (M40,3L80) 1964-UP Vehicle AM GENERALH1 HUMMER 1992 3 SP 4WD V8 6.2L DIESELBENTLEYCorniche 1971-19...

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$25.42 - $25.42
$25.42
$25.42 - $25.42
$25.42
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
MODULATOR DUAL RED STRIPE TH400 4T60E 4T65E
Sold Out
$18.94 - $18.94
$18.94
$18.94 - $18.94
$18.94

Modulator Dual Red Stripe TH400 4T60E 4T65E

Out of stock

MODULATOR DUAL RED STRIPE TH400 4T60E 4T65E Transmissions: TH400 (M40,3L80) 1964-UP, 4T60E (M13) 1997-UP, 4T65E (MN7,MN3,M76) 1997-UPOEM Number: 8...

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$18.94 - $18.94
$18.94
$18.94 - $18.94
$18.94
Sold Out
Notify When Available
Sprag Intermediate (8 Roller Type) TH400 M40 3L80
$17.97 - $17.97
$17.97
$17.97 - $17.97
$17.97

Sprag Intermediate (8 Roller Type) TH400 M40 3L80

in stock

Sprag Intermediate (8 Roller Type) TH400 M40 3L80 Transmissions: TH400 (M40,3L80) 1970-UPOEM Number: 8625814 Vehicle BUICKCentury 1973-1977 3 SP E...

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$17.97 - $17.97
$17.97
$17.97 - $17.97
$17.97
$17.69 - $17.69
$17.69
$17.69 - $17.69
$17.69

Speedo Gear 37 Teeth (Red) TH350 TH350C TH400 TH700-R4 TH200 TH200C

in stock

Speedo Gear 37 Teeth (Red) TH350 TH350C TH400 TH700-R4 TH200 TH200C Transmissions: TH700-R4 (TH700R4) 1982-1993, TH700 (4L60) 1982-1993, TH400 (M...

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$17.69 - $17.69
$17.69
$17.69 - $17.69
$17.69
Solenoid Valve Body Detent Short Wire and Kickdown TH400 3L80
$17.17 - $17.17
$17.17
$17.17 - $17.17
$17.17

Solenoid Valve Body Detent Short Wire and Kickdown TH400 3L80

in stock

Solenoid Valve Body Detent Short Wire and Kickdown TH400 3L80 Transmissions: TH400 (M40,3L80) 1964-UP Vehicle AM GENERALH1 HUMMER 1992 3 SP 4WD V8...

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$17.17 - $17.17
$17.17
$17.17 - $17.17
$17.17
FILTER FELT SCREEN TH400 - Suntransmissions
$8.20 - $8.20
$8.20
$8.20 - $8.20
$8.20

Filter Felt Screen Th400

in stock

Filter Felt Screen TH400Transmissions: TH400 1976-UPOEM Number: 86437741, 6438348 Vehicle BENTLEYCorniche 1971-1996 3 SP Eight 1984-1992 3 sp V8, ...

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$8.20 - $8.20
$8.20
$8.20 - $8.20
$8.20
Band Front TH400 TH425
$7.56 - $7.56
$7.56
$7.56 - $7.56
$7.56

Band Front TH400 TH425

in stock

Band Front TH400 TH425 Transmissions: TH425 1966-1978, TH400 (M40,3L80) 1965-UPOEM Number: 8623123 Vehicle BUICKCentury 1973-1977 3 SP Electra, Le...

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$7.56 - $7.56
$7.56
$7.56 - $7.56
$7.56
Metal Clad Seal Pump National TH350 AT540 TH400 PG TH250 TH325 ST300 AT545 TH350C TH180
$6.13 - $6.13
$6.13
$6.13 - $6.13
$6.13

Metal Clad Seal Pump National TH350 AT540 TH400 PG TH250 TH325 ST300 AT545 TH350C TH180

in stock

Metal Clad Seal Pump National TH350 AT540 TH400 PG TH250 TH325 ST300 AT545 TH350C TH180 Transmissions: TH180 (MD3,MD2,3L30,TH180C) 1969-UP, TH325 ...

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$6.13 - $6.13
$6.13
$6.13 - $6.13
$6.13
FILTER FLAT BRASS SCREEN TH400, AT540, AT545 - Suntransmissions
$5.92 - $5.92
$5.92
$5.92 - $5.92
$5.92

Filter FLAT BRASS SCREEN TH400 AT540 AT545

in stock

FILTER FLAT BRASS SCREEN TH400, AT540, AT545 Transmissions: AT540 1964-UP, AT545 1964-UP, TH400 1964-UPOEM Number: 6437741VehicleBENTLEYCorniche 1...

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$5.92 - $5.92
$5.92
$5.92 - $5.92
$5.92
PAN GASKET FARPACK TH400 - Suntransmissions
$5.33 - $5.33
$5.33
$5.33 - $5.33
$5.33

Pan Gasket Farpak TH400

in stock

PAN GASKET FARPACK TH400 Transmissions: TH400 (M40,3L80) 1964-UPOEM Number: 8655625VehicleAM GENERALH1 HUMMER 1992 3 SP 4WD V8 6.2L DIESELBENTLEY...

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$5.33 - $5.33
$5.33
$5.33 - $5.33
$5.33
Bushing Output Shaft (Wide) TH400 3L80 M40
$4.58 - $4.58
$4.58
$4.58 - $4.58
$4.58

Bushing Output Shaft (Wide) TH400 3L80 M40

in stock

Bushing Output Shaft (Wide) TH400 3L80 M40 Transmissions: TH400 (M40,3L80) 1964-1974OEM Number: 8623943, 8624988 Vehicle BUICKCentury 1973-1977 3 ...

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$4.58 - $4.58
$4.58
$4.58 - $4.58
$4.58
STEEL PLATE INTERMEDIATE CLUTCH FLAT 0.100IN. TH400 - Suntransmissions
$3.38 - $3.38
$3.38
$3.38 - $3.38
$3.38

Steel Plate Intermediate Clutch Flat 0.100in. TH400

Only 1 left!

STEEL PLATE INTERMEDIATE CLUTCH FLAT 0.100IN. TH400 Transmissions: TH400 (M40,3L80) 1964-UPOEM Number: 8655621 Vehicle AM GENERALH1 HUMMER 1992 3 ...

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$3.38 - $3.38
$3.38
$3.38 - $3.38
$3.38
$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
$2.81 - $2.81
$2.81
$2.81 - $2.81
$2.81

Governor Gear and Pin Kit TH400

in stock

Governor Gear and Pin Kit TH400 Transmissions: TH400 (M40,3L80) 1966-UPOEM Number: 8623924 Vehicle BUICKCentury 1973-1977 3 SP Electra, LeSabre 19...

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$2.81 - $2.81
$2.81
$2.81 - $2.81
$2.81
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
Metal Clad Seal Pump TH350, AT540, TH400, PG, TH250, TH325, ST300, AT545, TH350C
$2.49 - $2.49
$2.49
$2.49 - $2.49
$2.49

Metal Clad Seal Pump TH350 AT540 TH400 PG TH250 TH325 ST300 AT545 TH350C

in stock

Metal Clad Seal Pump TH350, AT540, TH400, PG, TH250, TH325, ST300, AT545, TH350C Transmissions: ST300 1964-1969, PG (POWERGLIDE,M35) 1962-1973, AT...

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$2.49 - $2.49
$2.49
$2.49 - $2.49
$2.49
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
Metal Clad Seal Extension Housing National with Flange TH350 TH250 TH700 4L60E C4 C5 PG TH180 TH200
$2.27 - $2.27
$2.27
$2.27 - $2.27
$2.27

Metal Clad Seal Extension Housing National with Flange TH350 TH250 TH700 4L60E C4 C5 PG TH180 TH200

in stock

Metal Clad Seal Extension Housing National with Flange TH350 TH250 TH700 4L60E C4 C5 PG TH180 TH200 Transmissions: TH700-R4 (TH700R4) 1982-UP, ST3...

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$2.27 - $2.27
$2.27
$2.27 - $2.27
$2.27

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