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Remanufactured Valve Body
Internal
Pinion Needle Roller 56412-03
Fits units with .334" dia. pins only.
-
Helps cure:
- Lost or damaged component
Thrust Bearing 56241
See part page for fitment details.
- Bearing Style: Enclosed
- Material: Hardened Steel
- Outer Dia.: 2.749"
- Thickness: 0.106"
- Inner Dia.: 2.010"
-
Helps cure:
- Bearing noise
- Bearing failure
Pump
Bell Housing/Pump Cover Bushing 56001X
Bell housing
- 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
Valve Body
(View Valve Body Layout Diagram)
Boost Valve Kit 37947-03K
Boost Valve Kit 37947-01K
EPC & Engagement Control Kit 37947-11K
-
Helps cure:
- 2nd Gear starts
- Flare on 1-2 or 2-3 shift on 4R, or 2-3, 3-4 on a 5R
- No Reverse
- Poor shift quality
- Delayed Forward
- TCC slip
- Code P0741
-
Tooling:
- 37947-TL11
EPC Limit Plug Kit 37947-55K
Elevated Pressure Main Pressure Regulator Spring 56947-17
-
Helps cure:
- Soft shifts
- Poor shift quality
- Low base line pressure
Inner Reverse Modulator Valve 37947-53
O-Ringed End Plug & Checkball Kit 37947-13K
Outer Reverse Modulator Valve 37947-52
Oversized Coast Clutch Valve Kit 37947-33K
-
Helps cure:
- No engine braking in D3 to low
- No 4th (4R44E/55E)
- No 2nd (5R44E/55E)
- No 5th (5R44E/55E)
- No coast clutch apply
-
Tooling:
- 37947-TL33
Oversized Solenoid Regulator Valve Kit 37947-48K
-
Helps cure:
- Wrong gear starts
- Solenoid performance codes
- TCC codes & concerns
- Harsh shifts
- Soft shifts
- Burnt TCC apply components
- Burnt clutches
-
Tooling:
- 37947-TL48
Pressure Regulator Sleeve Kit 37947-05K
-
Helps cure:
- Delayed engagement
- Poor shift quality
- Low line pressure
- High line pressure
- Overheating
- Low cooler flow at idle
-
Tooling:
- 37947-TL5
Pressure Regulator Valve 37947-54
TCC Modulator Sleeve Kit 37947-07K
-
Helps cure:
- Code 1741
- No lockup
- Engine stall on FWD engagement
- Poor converter fill & delayed engagements
- Low cooler flow
-
Tooling:
- 37947-TL5
TCC Regulator Sleeve Kit 37947-09K
-
Helps cure:
- Code 628, 1741
- TCC apply concerns
- TCC cycling
- TCC surge
- High TCC slip RPM
- Overheated fluid
- Overheated converter
-
Tooling:
- 37947-TL9
TCC Regulator Valve 37947-38
TCC Regulator Valve Spring Kit 37947-46K
Matches 4.0L calibration
-
Helps cure:
- Code P0741
- Low TCC apply pressure
- Low spring rate on 2.3L TCC regulator valve
- Damaged valve body casting
Zip Kit® 4R44E-5R55E-ZIP
Servo/Band
Reverse Servo Sleeve Kit 56532-01K
Other
Crankshaft Spacer 56000-CS8
- Material: Steel
- Bolt Holes: 8
- Outer Dia.: 2.972"
- Inner Dia.: 0.751"
- Thickness: 0.872"
-
Helps cure:
- Vibration
- Leaking front pump seal
- Leaking converter seal
- Worn crankshaft spacer
- Cracked crankshaft spacer
- Cracked flywheel
- Converter misalignment
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
Tech Resources
January 25, 2023
Uncovering the Root Cause of Pressure & Complaints – The Critical Role of Solenoid Modulator & AFL Valves
Maura Stafford
July 20, 2021
Ford 4R44E, 5R44E, 4R55E, 5R55E Valve Body Layout
May 21, 2013
Ford 4R44E, 4R55E, 5R44E, 5R55E Vacuum Test Guide
September 22, 2006
4R44E, 5R55E Case-Wall Movement and Comebacks
Gregg Nader
May 19, 2006
SonnaFlow® Chart: 4R/5R55E (Normal & Poor)
May 19, 2006
SonnaFlow® Chart: 4R/5R55E (Normal)
May 19, 2006
SonnaFlow® Chart: 4R/5R44E (Normal & Poor)
September 21, 2005
18 Troubleshooting Tips for 4R44E & 5R55E Transmissions
Bob Warnke
October 22, 2004
A4LD/4R44E Ford 4.0L Crank Spacer Puzzle
Gregg Nader