Transmission Parts

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TH400

Line Pressure Booster Kit 400-LB1

5L40-E • 5L50-E

Pressure Regulator Valve Kit 55211-08K

Helps cure:

Low pressure
Pump damaged
Pump slide wear
Gear ratio codes
No 4-5

4R100 • E4OD

Line Pressure Booster Kit 4R100-LB1

4R44E • 4R55E • A4LD

Pinion Pin 56412-02

.334" Dia.

Helps cure:

Lost or damaged component

5R55N

TCC Back Pressure Spring 56947J-S5

Helps cure:

Harsh TCC apply
Excess TCC slip
Low line pressure
TCC lining overheat

5R55N • 5R55S • 5R55W

Pump Flow Control Valve Kit 56200-03K

Drop-in replacement

Helps cure:

Delayed engagement
No movement
Pump noise
Low line pressure

5L40-E • 5L50-E

Boost Valve Kit 55209-04K

OE ratio with .474" & .441" dia. valve spools.

Dia.: 0.474"
Dia.: 0.441"

Helps cure:

High line pressure in Reverse
Low line rise
Gear ratio codes
TCC slip
Flare shifts

U140E • U140F • U240E • U241E

Clutch Apply Control Plunger Valve Kit 57917E-05K

Helps cure:

Shift concerns
Erratic shifts
Clutch failure

4R44E • 4R55E • 5R44E • 5R55E • 5R55N • 5R55S • 5R55W • A4LD

Bell Housing/Pump Cover Bushing 56001X

Material: Bimetal
Bushing Style: Finish-in-Place
Housing Bore: 1.741"
Shaft Dia.: 1.615"
Width: 0.630"

Helps cure:

Repeat front seal leakage
Worn pump bushing
Worn converter hub

5L40-E • 5L50-E

Oversized TCC Control & Enable Valve Kit 55211-22K

Fits dual-valve pumps only

Helps cure:

TCC apply & release concerns
Falls out of lockup when hot
No lockup
Inadequate lubrication

4R44E • 4R55E • 5R44E • 5R55E • A4LD

Crankshaft Spacer 56000-CS6

Material: Steel
Bolt Holes: 6
Outer Dia.: 2.972"
Inner Dia.: 0.751"
Thickness: 0.875"

Helps cure:

Vibration
Leaking front pump seal
Leaking converter seal
Worn crankshaft spacer
Cracked crankshaft spacer
Cracked flywheel
Converter misalignment

5R55N • 5R55S • 5R55W

TCC Modulator Valve Kit 56947J-15K

Helps cure:

Code P0741
Excess TCC slip
Code 1783
High line pressure
Overheated transmission

JR710E • JR711E • JR712E • RE5R05A • RE7R01A

Oversized Pressure Regulator & Boost Valve Kit 63741-01K

Also fits Hyundai/Kia A5SR1/2 and Subaru 5EAT.

Helps cure:

Delayed Forward
Harsh Reverse
Erratic line pressure
2-3 Harsh
Low converter & lube flow
Burnt clutches
Excess clutch apply pressure
Delayed Reverse
Reverse slip

5R55N

4-3 Pre-Stroke Valve Spring 56947J-S1

Helps cure:

Code 734, 735
Solenoid C Code
No 4th
No 5th

722.6

Pump Bushing 68004-01

Fits '96-later

Material: Bimetal
Bushing Style: Precision
Housing Bore: 1.810"
Shaft Dia.: 1.692"
Width: 0.550"

Helps cure:

Bushing wear
Bushing failure

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