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EPC & TCC Relief Valve Kit 37947-40K

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E
  • Fits either of two locations.
This part has been discontinued. Click here to see the part instructions.

Drill Jig 56600-DJ

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E
  • A4LD
This part has been discontinued. Click here to see the part instructions.

Boost Valve Kit 37947-03K

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E
  • Increased Ratio

Some typical problems in Ford 4R44E, 4R55E, 5R44E and 5R55E units are soft shifts, delayed Reverse, poor modulator control and/or low line pressure in Reverse. A w...Read More

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4R44E, 4R55E, 5R44E, 5R55E Boost Valve Kit 37947-03K

Boost Valve Kit 37947-01K

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E
  • OE Ratio

Some typical problems in Ford 4R44E, 4R55E, 5R44E and 5R55E units are soft shifts, delayed Reverse, poor modulator control and/or low line pressure in Reverse. A w...Read More

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4R44E, 4R55E, 5R44E, 5R55E Boost Valve Kit 37947-01K

Oversized Pressure Regulator Valve Kit 56947J-39K

  • 5R55N
This part has been discontinued. Click here to see the part instructions.

Oversized Reverse Modulator Valve Kit 56947J-53K

  • 5R55N
This part has been discontinued. Click here to see the part instructions.

Oversized TCC Back Pressure Valve Kit 56947J-63K

  • 5R55N
This part has been discontinued. Click here to see the part instructions.

TCC Modulator Plunger Valve Kit 56947J-32K

  • 5R55N
This part has been discontinued. Click here to see the part instructions.

TCC Modulator Spring 56947J-S4

  • 5R55N

The OE valve springs are subject to breakage, bending or fatigue failure. Broken portions of the spring can cause the associated valve to stick in either the fully...Read More

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5R55N TCC Modulator Spring 56947J-S4

TCC Back Pressure Spring 56947J-S5

  • 5R55N

The OE valve springs are subject to breakage, bending or fatigue failure. Broken portions of the spring can cause the associated valve to stick in either the fully...Read More

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5R55N TCC Back Pressure Spring 56947J-S5

Elevated Pressure Main Pressure Regulator Spring 56947J-S8

  • 5R55N
This part has been discontinued.

5R55N
Remanufactured Valve Body F030

This part has been discontinued. Click here to see the part instructions.

Oversized PCA/PCB Modulator Valve Kit 56947J-49K

  • 5R55N
This part has been discontinued. Click here to see the part instructions.

TCC Regulator Valve 37947-38

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E
  • OE size

Debris and constant oscillation of the converter clutch regulator valve can create scratches on the critical valve spools, allowing valuable regulated line pressur...Read More

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4R44E, 4R55E, 5R44E, 5R55E TCC Regulator Valve 37947-38

Tool Kit 37947-TL48

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E

Tool Kit for 37947-48K

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4R44E, 4R55E, 5R44E, 5R55E Tool Kit 37947-TL48

Tool Kit 37947-TL40

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E
This part has been discontinued. Click here to see the part instructions.

EPC Limit Plug 37947-55BLK

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E
This part has been discontinued.

Tool Kit 37947-TL5

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E

Tool Kit for 37947-05K & 37947-07K

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4R44E, 4R55E, 5R44E, 5R55E Tool Kit 37947-TL5

Pressure Regulator Sleeve Kit 37947-05K

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E

Constant oscillation of the pressure regulator valve can cause excessive wear at the balance line end of the bore, allowing balance line pressure to exhaust and pr...Read More

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4R44E, 4R55E, 5R44E, 5R55E Pressure Regulator Sleeve Kit 37947-05K

O-Ringed End Plug & Checkball Kit 37947-13K

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E

The end plugs at the kick downshift control, manual low, and throttle downshift control valves become loose. This allows solenoid feed oil to exhaust and drop belo...Read More

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4R44E, 4R55E, 5R44E, 5R55E O-Ringed End Plug & Checkball Kit 37947-13K

Crankshaft Spacer 56000-CS6

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E
  • A4LD

The crankshaft spacer in A4LD, 4R44E and 5R55E applications is prone to cracking and wear because the powdered metal material of the OE spacer cannot provide adequ...Read More

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4R44E, 4R55E, 5R44E, 5R55E, A4LD Crankshaft Spacer 56000-CS6

Crankshaft Spacer 56000-CS8

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E
  • A4LD

The crankshaft spacer in A4LD, 4R44E and 5R55E applications is prone to cracking and wear because the powdered metal material of the OE spacer cannot provide adequ...Read More

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4R44E, 4R55E, 5R44E, 5R55E, A4LD Crankshaft Spacer 56000-CS8

Thrust Bearing 56241

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E
  • Powerglide

The Sonnax thrust bearing 56241 is a direct replacement for the following Ford 4R44E, 5R44E, 4R55E and 5R55E locations: Center support (’97-later) Direct d...Read More

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4R44E, 4R55E, 5R44E, 5R55E, Powerglide Thrust Bearing 56241

Bearing Adapter FD-WA-25

  • 4R55E
  • 4R55E, 5R55E Late Production
  • A4LD
  • A4LD Multi-Plate

Sonnax bearing adapter FD-WA-25, along with heavy duty thrust bearing CH-N-1, replaces the OE impeller-side stator cap and bearing assembly in Ford A4LD, A4LD mult...Read More

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4R55E, 4R55E, 5R55E Late Production, A4LD, A4LD Multi-Plate Bearing Adapter FD-WA-25

Reverse Servo Sleeve Kit 56532-01K

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E
  • A4LD
  • C3

The reverse servo bore found on the case of listed Ford transmissions can become scored due to repeated oscillation of the reverse servo piston within the bore dur...Read More

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4R44E, 4R55E, 5R44E, 5R55E, A4LD, C3 Reverse Servo Sleeve Kit 56532-01K

Accordion Spring GM-S-1A

  • 4R55E
  • 4R55E, 5R55E Late Production
  • 5R55N, S, W
  • A4LD
  • A4LD Multi-Plate
  • Powerglide
  • TH350

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4R55E, 4R55E, 5R55E Late Production, 5R55N, S, W, A4LD, A4LD Multi-Plate, Powerglide, TH350 Accordion Spring GM-S-1A

Tool Kit 37947-TL33

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E

Tool Kit for 37947-33K

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4R44E, 4R55E, 5R44E, 5R55E Tool Kit 37947-TL33

TCC Regulator Sleeve Kit 37947-09K

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E

Constant oscillation of the converter clutch regulator valve creates wear in the valve body bore. Also, the small plug separating this regulator valve and the inbo...Read More

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4R44E, 4R55E, 5R44E, 5R55E TCC Regulator Sleeve Kit 37947-09K

Tool Kit 37947-TL9

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E

Tool Kit for 37947-09K

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4R44E, 4R55E, 5R44E, 5R55E Tool Kit 37947-TL9

Oversized Coast Clutch Valve Kit 37947-33K

  • 4R44E
  • 4R55E
  • 5R44E
  • 5R55E

The coast clutch valve functions differently in 4R44E/55E units and 5R44E/55 units. The valve is the same but the porting used in their different separator plates ...Read More

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4R44E, 4R55E, 5R44E, 5R55E Oversized Coast Clutch Valve Kit 37947-33K
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