4R44E Sprag Clutch, new and ready to install. Fits the 4R44E. Ships fast from the USA.
If your Ranger, Mazda B-Series or Explorer pulls away in Drive like it is starting in second, or sits in neutral for a moment before it catches, yet first gear works fine when you pull the shifter down into manual 1, the rear (low) one-way clutch is the first part to suspect. This listing is that part: a new aftermarket 26-element rear sprag, industry number A56654HA (Ford reference 97GT-7E193AD), built for the 4R44E, 4R55E, 5R44E and 5R55E family. It replaces the earlier 16-element design with a higher element count, which spreads the load across more contact points.
The 4R44E is the electronic descendant of the A4LD, which itself was a three-speed C3 with an overdrive unit added up front. The rear half of the box still works like that three-speed. In first gear in Drive, the low sprag locks the rear gearset against the case so the transmission has something to react against, and it does that without any hydraulic apply. When the computer commands the 1-2 shift, the next clutch or band comes on and the sprag simply freewheels out of the way. That is why a good sprag gives a clean, overlap-free 1-2 shift. In manual 1 and in reverse, the low/reverse band holds the same member instead, which is the reason a failed sprag usually leaves those ranges working.
Start with the simple test. Warm the fluid, set the level correctly, then compare a takeoff in Drive with a takeoff in manual 1. If manual 1 pulls hard and Drive does not, the sprag is the prime suspect. If both slip, look at pressure first; our line pressure testing guide covers the hookup, and the Sonnax troubleshooting article for this family lists valve body leaks that cause delayed or lost gears without any hard-part damage. Our slipping diagnosis guide helps you separate a holding-element problem from a pressure problem, and flare versus slip explains what each feels like from the driver's seat.
The listing is written for the 4R44E, 4R55E, 5R44E and 5R55E, 1997 and up. The 4R44E itself was used from 1995 to 2001 behind the 2.3L and 3.0L engines in the Ford Ranger and Mazda B-Series and in the 1995-1997 Aerostar. The 4R55E was the heavier 4.0L version in the 1995-1996 Explorer and Ranger before the 5R55E replaced it for 1997. Because this sprag is marked 1997-up and replaces the 16-element part, owners of 1995-1996 units should compare the old sprag and race to the photo before ordering. If you are not sure which unit you have, send us your year and VIN and we will check it, or browse the 5R55 family collection.
A sprag only holds in one direction, and this style can go in upside down. Before final assembly, hold the race and confirm it locks one way and freewheels the other in the same direction the original did. Inspect the race and hub surfaces; pitting, brinelling or a polished track means the race needs replacing too, or the new sprag will fail early. While the rear of the unit is apart, check the low/reverse band, drum and rear planetary for wear; 4R44E planetary parts are listed separately. A 4R44E master rebuild kit covers the frictions, band and seals if you are going through the whole unit. Flush the cooler and lines before refill, as covered in flushing a cooler after a failure, so sprag debris does not come back in. Refill with MERCON V; Motorcraft MERCON V is the factory-type fluid.
| Fits | 4R44E |
| Part type | Sprag Clutch |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
It is the rear (low) one-way clutch, the one that holds the rear gearset in first gear in Drive. It is not the overdrive one-way clutch at the front of the unit.
Yes, the listing covers the 4R44E, 4R55E, 5R44E and 5R55E family, 1997 and up. For 1995-1996 units, compare your old sprag to the photo or send us your year and VIN before ordering.
In manual 1 the low/reverse band holds the rear gearset, so the sprag is not needed. In Drive first gear depends on the sprag alone, so a slipping or broken sprag shows up only there.
This 26-element unit replaces the earlier 16-element design. More elements share the holding load, which is why rebuilders use the higher count part as the replacement.
Inspect and replace the race if it is pitted or worn, check the low/reverse band and rear planetary, and flush the cooler. If the unit is fully apart, a master rebuild kit covers the frictions, band and seals.
The 4R44E family uses MERCON V. Set the level hot with the engine running after the repair.
