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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 Plate Raybestos Forward & Direct Clutch [10-11] TH400 TH425 4L80E 4L85E 3L80 M40 Sold Out
$3.09 - $3.09
$3.09
$3.09 - $3.09
$3.09

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

Out of 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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$3.09 - $3.09
$3.09
$3.09 - $3.09
$3.09
Sold Out
Notify When Available
Sold Out
$3.03 - $3.03
$3.03
$3.03 - $3.03
$3.03

Governor Gear and Pin Kit TH400

Out of 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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$3.03 - $3.03
$3.03
$3.03 - $3.03
$3.03
Sold Out
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4L80E TH400 forward & direct clutch waffle friction plate – face view (42 teeth, 0.080in)
$2.85 - $2.85
$2.85
$2.85 - $2.85
$2.85

4L80E TH400 Forward & Direct Clutch Friction Plate – Waffle

in stock

Need a forward/direct clutch friction plate for your 4L80E or TH400? This Allomatic waffle (grooved) friction plate fits the forward and direct clu...

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$2.85 - $2.85
$2.85
$2.85 - $2.85
$2.85
4L80E TH400 forward clutch flat steel plate 0.077in – Sun Transmissions
$2.76 - $2.76
$2.76
$2.76 - $2.76
$2.76

4L80E TH400 Forward Clutch Steel Plate – Flat 0.077in

in stock

Need a forward clutch steel plate for your 4L80E or TH400? This flat steel separator plate fits the forward clutch pack in GM TH400 and 4L80E trans...

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$2.76 - $2.76
$2.76
$2.76 - $2.76
$2.76
FRICTION PLATE ALLOMATIC FOWARD AND DIRECT CLUTCH TH400, 4L80E
$2.69 - $2.69
$2.69
$2.69 - $2.69
$2.69

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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$2.69 - $2.69
$2.69
$2.69 - $2.69
$2.69
Metal Clad Seal Extension Housing TH400 T8 C6 E4OD 4R100 A500 45RFE 5-45RFE 42RLE FMX A727
$2.59 - $2.59
$2.59
$2.59 - $2.59
$2.59

Metal Clad Seal Extension Housing (Medium) (Car Type) 2.506in OD TH400 T8 C6 E4OD

Only 1 left!

Metal Clad Seal Extension Housing TH400 T8 C6 E4OD 4R100 A500 45RFE 5-45RFE 42RLE FMX A727 2.506” OD 1 11/16” ID (Medium, Car Type) Transmissions: ...

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$2.59 - $2.59
$2.59
$2.59 - $2.59
$2.59
BUSHING PUMP BABBIT TH180C 4L30E 325 TH250C TH350C TH400 AT540 AT545 POWERGLIDE ST300
Sold Out
$2.53 - $2.53
$2.53
$2.53 - $2.53
$2.53

Bushing Pump BABBIT TH180C 4L30E 325 TH250C TH350C TH400 AT540 AT545 POWERGLIDE ST300

Out of stock

BUSHING PUMP BABBIT TH180C 4L30E 325 TH250C TH350C TH400 AT540 AT545 POWERGLIDE ST300 Transmissions 4L30E (ML4) – 1962-UP AT540 (AT543) – 1962-U...

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$2.53 - $2.53
$2.53
$2.53 - $2.53
$2.53
Sold Out
Notify When Available
O-Ring Front Pump (Lip Seal) TH400 TH700-R4 4L60E 4L65E 4L80E AT540
$2.44 - $2.44
$2.44
$2.44 - $2.44
$2.44

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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$2.44 - $2.44
$2.44
$2.44 - $2.44
$2.44
Metal Clad Seal Extension Housing National with Flange TH350 TH250 TH700 4L60E C4 C5 PG TH180 TH200
Sold Out
$2.41 - $2.41
$2.41
$2.41 - $2.41
$2.41

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

Out of 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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$2.41 - $2.41
$2.41
$2.41 - $2.41
$2.41
Sold Out
Notify When Available
Speedo Gear Grey 44 Teeth TH350 TH350C TH400 TH700-R4 TH700 TH200 TH200C
Sold Out
$2.17 - $2.17
$2.17
$2.17 - $2.17
$2.17

Speedo Gear Grey 44 Teeth TH350 TH350C TH400 TH700-R4 TH700 TH200 TH200C

Out of stock

Speedo Gear Grey 44 Teeth TH350 TH350C TH400 TH700-R4 TH700 TH200 TH200C Transmissions: TH700-R4 (TH700R4) 1982-UP, TH700 (4L60) 1982-UP, TH400 (M...

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$2.17 - $2.17
$2.17
$2.17 - $2.17
$2.17
Sold Out
Notify When Available
BUSHING PUMP BRONCE TH350 TH400 AT540
$2.06 - $2.06
$2.06
$2.06 - $2.06
$2.06

Bushing Pump BRONCE TH350 TH400 AT540

in stock

BUSHING PUMP BRONCE TH350 TH400 AT540 Transmissions: AT540 (AT543) 2000, TH350 (MV4,M38) 2000, TH400 (M40,3L80) 2000OEM Number: 6880917 Vehicle AM...

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$2.06 - $2.06
$2.06
$2.06 - $2.06
$2.06
Gasket Pump TH400 M40 3L80 1964/UP
Sold Out
$2.03 - $2.03
$2.03
$2.03 - $2.03
$2.03

Gasket Pump TH400 M40 3L80 1964/UP

Out of stock

Gasket Pump TH400 M40 3L80 1964/UP Transmissions: TH400 (M40,3L80) 1964-UPOEM Number: 8623978   Vehicle BUICKCentury 1973-1977 3 SP Electra, LeSab...

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$2.03 - $2.03
$2.03
$2.03 - $2.03
$2.03
Sold Out
Notify When Available
Pan Gasket TH400 M40 3L80
$1.98 - $1.98
$1.98
$1.98 - $1.98
$1.98

Pan Gasket TH400 M40 3L80

in stock

Pan Gasket TH400 M40 3L80 Transmissions: TH400 (M40,3L80) 1965-UP OEM Number: 8629807, 8655625  Vehicle AM GENERALH1 HUMMER 1992 3 SP 4WD V8 6.2L ...

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$1.98 - $1.98
$1.98
$1.98 - $1.98
$1.98
Metal Clad Seal Extension Housing with Flange TH350 TH250 TH700 4L60E C4 C5 PG TH180 TH200 AOD
$1.81 - $1.81
$1.81
$1.81 - $1.81
$1.81

Metal Clad Seal Extension Housing with Flange (Small) TH350 TH400 TH700 4L60E C4 C5 PG TH180 TH200 AOD

in stock

Metal Clad Seal Extension Housing with Flange (Small) TH350 TH250 TH700 4L60E C4 C5 PG TH180 TH200 AOD  Transmissions: L3N71B 1971-1987, TH700-R4 ...

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$1.81 - $1.81
$1.81
$1.81 - $1.81
$1.81
Manual lever shaft metal clad seal for GM & Allison automatics (38511)
$1.50 - $1.50
$1.50
$1.50 - $1.50
$1.50

Manual Lever Shaft Metal Clad Seal — TH350 TH400 TH700-R4 4L60E 4L80E 6L80

in stock

Need the manual lever (selector) shaft seal for a GM or Allison automatic?This is the metal clad manual-lever shaft seal that seals the manual sele...

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$1.50 - $1.50
$1.50
$1.50 - $1.50
$1.50
Gasket Case to Spacer Plate 7 Check Ball Type No Stripe TH400 1988/UP
$1.42 - $1.42
$1.42
$1.42 - $1.42
$1.42

Gasket Case to Spacer Plate 7 Check Ball Type TH400 1988/UP

in stock

Gasket Case to Spacer Plate 7 Check Ball Type TH400 1988/UP Transmissions: TH400 (M40,3L80) 1987-UPOEM Number: 8670458 Vehicle CHEVROLETCamaro 196...

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$1.42 - $1.42
$1.42
$1.42 - $1.42
$1.42
Metal Clad Seal Speedometer Shaft TH350 TH400 TH125 TH180 TH700-R4 TH200C A904 TH440 PG
$1.00 - $1.00
$1.00
$1.00 - $1.00
$1.00

Metal Clad Seal Speedometer Shaft TH350 TH400 TH125 TH180 TH700-R4 TH200C A904 TH440 PG

in stock

Metal Clad Seal Speedometer Shaft TH350 TH400 TH125 TH180 TH700-R4 TH200C A904 TH440 PG Transmissions: TH400 (M40,3L80) 1964-UP, TH325-4L 1979-198...

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$1.00 - $1.00
$1.00
$1.00 - $1.00
$1.00
GM & Ford transmission filler tube boot seal (top-hat design) – Sun Transmissions
$0.95 - $0.95
$0.95
$0.95 - $0.95
$0.95

Transmission Filler Tube Boot Seal (Top Hat) – GM & Ford

in stock

Need the filler tube boot seal for your automatic transmission? This top-hat-design boot seals the dipstick filler tube where it enters the transmi...

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$0.95 - $0.95
$0.95
$0.95 - $0.95
$0.95

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