4R55E Pump 1995, used and ready to install. Fits the 4R55E. Ships fast from the USA.
The 1995 model year is when Ford replaced the A4LD with the electronically controlled 4R44E and 4R55E, and the 4R55E went behind the 4.0L V6 in trucks like the Explorer and Ranger. If your 1995 4.0L truck creeps into gear, loses grip on every shift once it is hot, or whines with engine speed, the pump may be done. This is a used OEM 4R55E pump listed for 1995, a budget way to replace a scored pump without buying a full rebuild.
The 4R55E is the heavier-duty version of the 4R44E. Wikipedia rates it at 550 lb-ft against 440 for the 4R44E, and Ford beefed up the drive components for the 4.0L. Hydraulically, though, everything still starts at the pump. The converter hub drives it, and its output is trimmed by the electronic pressure control (EPC) solenoid into line pressure for the bands, clutches and converter. That EPC system is the big change from the A4LD, which managed pressure with a vacuum modulator. The pump in the photo is the pump body with its stator support shaft; it does not include a converter housing, so the front bushing and seal surface on your truck still need to be checked.
On this transmission, a bad valve body can look a lot like a bad pump. Sonnax explains that the converter clutch regulator is fed by line pressure, so a dirty EPC solenoid or a leak in the EPC circuit starves lockup the same way a weak pump does. A sticking EPC and engagement control valve can also cause delayed Reverse, 1-2 and 2-3 flares and harsh shifts after a kickdown. Gauge line pressure hot in Drive and Reverse, then command the EPC up. If pressure stays low everywhere and will not rise, test the 4R55E pressure control solenoid before you blame the pump. Low pressure in one range only means a circuit leak. The harsh and delayed shift guide for the closely related 5R55 covers the same EPC logic, and our line pressure guide shows how to hook up the gauge.
This pump is listed for the 1995 4R55E. Two points deserve care on a 1995 truck. First, sources disagree slightly on timing: Wikipedia lists the 4R55E in 1995-1996 Explorers, while Sonnax describes the 4.0L 4R55E as a 1996 release. Second, the lighter-duty 4R44E went into 1995 Rangers and Mazda B-Series trucks with the 2.3L and 3.0L, and the two transmissions share a basic design. Read the transmission code on the door tag, look for an EPC solenoid and no vacuum modulator, and compare the stator shaft splines and bolt pattern with your old pump. Send us your year and VIN if anything does not match. Need a remanufactured option instead? See the 1995-1996 4R55E pump or the undated 4R55E pump.
| Fits | 4R55E 1995 |
| Part type | Pump |
| Condition | Used |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
The 4R55E went behind the 4.0L V6; the 4R44E was used with the 2.3L and 3.0L. Check the transmission code on the door tag or send us your VIN.
The 4R55E uses an EPC solenoid for line pressure. The A4LD it replaced used a vacuum modulator, so a modulator with a vacuum hose on the case means you have an A4LD.
No. The photo shows the pump body with the stator support shaft. Inspect the front bushing and seal surface on your own housing.
Use the Mercon-type fluid named in your owner guide, and do not mix fluid types. Prefill the converter before installing it.
Yes. A dirty EPC solenoid or EPC circuit leak causes low line pressure and poor lockup just like a weak pump. Gauge line pressure and test the solenoid first.
