Gaskets, Seals & O-Rings

TH400 3L80 Gasket and Seal Overhaul Rebuild Kit

Precision International part number: K34900AOur SKU: 1291A This Turbo TH400 (3L80) Transmission Overhaul Kit includes the basic seals, gaskets, o-rings and filters necessary to rebuild GM TH400<

TH400 Paper Gasket & Rubber Sealing Kit (No MC Seals or small Components)

Part number: 1291PRC The kit contains the paper gaskets and rubber seals needed to overhaul a GM Turbo 400 (TH400) automatic transmission built from 1965 to 1990. It does not include metal-clad seals...

TH400 Intermediate Clutch Inner Lip Seal | 8627627

Part number: 3963L Intermediate clutch inner lip seal for the GM TH400, covering 1964-1990 units. The same seal also applies to the TH425. Made by Precision International. It replaces OEM part number...

TH400 Intermediate Clutch Outer Lip Seal | 8623143

Part number: 3962L An outer lip seal for the intermediate clutch piston in TH400 (Turbo 400) and TH425 automatic transmissions, 1964-1990. OEM part number 8623143 identifies this Precision...

6-Bolt Transfer Case Adapter Gasket | HD Performance Style

Precision International part number: 33110L General Motors 6-bolt transfer case adapter gasket designed to exceed OEM standards. Unlike traditional paper fiber gaskets, the 33110L is manufactured...

Driveshaft Yoke Seal Kit for Large Yokes (TH400, 4L80E/85E, 6L80/90, C6, 6R80) (Includes Install Tool and 4 -34746YS)

Part number: KT3407 A driveshaft yoke seal kit sized for large yokes on TH400, 4L80E/85E, 6L80/90, C6 and 6R80 transmissions, from Fitzall. The kit includes an install tool along with four of...

GM (1976-Up) Ford Taurus (1986-Up) Clip On Detent Throttle Cable End

Part number: K35955CE-1 Clip-on detent throttle cable end for GM (1976-UP) and Ford Taurus (1986-UP) vehicles. It is a clip-on style detent cable end from Fitzall, replacing the throttle cable end on...

4L80E 4L85E (Other Transmissions with Large (1 3/8") Diameter Yolk) Yolk Seal

Part number: 34746YS Fitzall yoke seal for large yokes of approximately 1 3/8" diameter, such as those on the TH-400, 4L80E and 4L85E. It works well with the install tool in the KT3507 yoke seal kit.

Powerglide TH400 Extension Housing Seal (Buna-N) 3789056

Part number: 3760L An extension housing seal for Powerglide and TH400 automatic transmissions, matching OEM number 3789056, sold individually as one seal for that particular housing location on the...

5R110W A518 A604 62TE A727 A904 C4 C6 E4OD TH350 TH400 Powerglide Fill Tube O-Ring

Part number: 3291L A fill tube and sensor O-ring from Precision International used across many transmissions, including 5R110W, A518, A604, 62TE, A727, A904, C4, C6, E4OD, TH350, TH400, A413, A31TH,...

Speedo Driven Gear Lip Seal TH200-4R 700R4 A518 46RH 47RH TF8 A727 TF6 A904 A404 A413 A470 A670 A500 44RE 40RH 42RH 42RE ST300 TH125/C TH200/C TH325 TH350/C TH400 TH425 TH440-T4

Part number: 3991L A speedometer driven gear lip seal that installs in the housing with a snap ring, made by Precision International. It covers a wide range of applications, including TH200-4R,...

O-Ring used in Various Applications Listed Below (Solenoids, Lube Tubes, Case Plugs, Etc)

Precision International part number: 32652 A604 (VB Crossover Orifice) TF6 A904 30RH 31RH 32RH A998 A999 (L/U Solenoid) AODE 4R70W 4R75E/W (Dual Shift Solenoid) F1DZ-7Z484-AAX4N 4F50N (Lube Tube, TCC...

TH400 Pump Stator & Center Support Sealing Ring (Teflon) (1964-1990) (Takes 6 Total)

Part number: 12600T A Teflon sealing ring for the TH400 pump stator and center support, 1964-1990, sold by Precision International. It takes 6 total per transmission, used on both the center support...

TH400 Sealing Ring Kit (All Metal)

Part number: K34901A An all-metal sealing ring kit for GM TH400 (Turbo 400) automatic transmissions built between 1964 and 1990. This kit supplies the full set of metal sealing rings used across this...

TH400 AT540 AT545 AT1545 MT640 MT650 Governor Cover Gasket - Fiber

Part number: 3914LXD A fiber governor cover gasket for TH400, AT540, AT542, AT543, AT545, AT1545, MT640, MT643, MT644, MT647, MT650, MT653 and MT654 transmissions. OEM part numbers 8670381 and...

TH400 Front Accumulator Front Servo Piston Seal

Part number: 34192 A metal front accumulator and front servo piston seal for TH400, TH180 and TH425 automatic transmissions (also known as Turbo 400 series), made by Precision International...

TH350 TH200 700R4 TH400 TH425 Speedo Housing O-Ring

Part number: 32134B A speedo housing O-ring from Precision International for TH350, TH200, 700R4, TH400, TH425, ST300 and TH250 transmissions. It fits the speedo housing on GM TH400, TH425, 700R4,...

TH400 TH350 700R4 TH125 TH250 Powerglide Case Connector/Speedo Gear Fitting O-Ring

Part number: 44369B A rubber o-ring for the case connector in GM TH400, TH350, 700R4, TH125 and TH250 transmissions, made by Precision International from Buna-N material and replacing OEM part number...

TH400 4L80E Pump Stator & Center Support Sealing Ring - Metal

Part number: 34181 Metal sealing ring for the pump stator and center support of GM's Turbo 400 (TH400) and 4L80E automatic transmissions. Reference number 34406-SP. It is a metal ring rather than a...

TH400 4L80E Forward Direct Clutch Outer Lip Seal

Part number: 34335 A replacement outer lip seal for the forward and direct clutch piston in GM's TH400 and 4L80E automatic transmissions, manufacturer number 3643L, made in the USA. It is sold...