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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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$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
Metal Clad Seal Extension Housing National with Flange TH350 TH250 TH700 4L60E C4 C5 PG TH180 TH200
$2.23 - $2.23
$2.23
$2.23 - $2.23
$2.23

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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$2.23 - $2.23
$2.23
$2.23 - $2.23
$2.23
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 Extension Housing with Flange TH350 TH250 TH700 4L60E C4 C5 PG TH180 TH200 AOD
$1.45 - $1.45
$1.45
$1.45 - $1.45
$1.45

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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$1.45 - $1.45
$1.45
$1.45 - $1.45
$1.45
Manual lever shaft metal clad seal for GM & Allison automatics (38511)
$1.22 - $1.22
$1.22
$1.22 - $1.22
$1.22

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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$1.22 - $1.22
$1.22
$1.22 - $1.22
$1.22
GM & Ford transmission filler tube boot seal (top-hat design) – Sun Transmissions
$0.76 - $0.76
$0.76
$0.76 - $0.76
$0.76

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

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