5R55S Solenoid Kit 2002, remanufactured and ready to install. Fits the 5R55S. Ships fast from the USA.
This remanufactured solenoid kit is listed for 2002, the first year Ford put the five-speed 5R55 behind the Explorer and Mountaineer V6 and V8. If your 2002 truck is stuck in one gear, slams into third, or shows a shift solenoid code, this is the assembly that controls every one of those functions. Before ordering, read the fitment section below, because 2002 is the most confusing year in the 5R55 family.
The pack is a single assembly bolted to the valve body under the pan. Transmission Digest lists eight solenoids on it: four on/off shift solenoids, a PWM converter clutch solenoid and three variable force pressure solenoids. The shift solenoids choose the gear, and the pressure solenoids decide how firmly each clutch and servo applies. On the earliest units, ATRA notes the pack was a different part number from the one Ford used from 2004 on, and the pressure it produces at a given current is slightly different. A mismatch between pack and calibration can leave shifts soft or harsh even when nothing is broken.
A 2002 truck is now more than twenty years old, so rule out wiring before parts. Check the case connector for fluid wicking up the harness and corroded pins, then read codes. Inspect the pan: heavy friction debris means clutch or band damage, and a pack alone will not fix it. Our 5R55W Explorer shift problems guide walks through the order of checks, and the 5R55 harsh and delayed shift walkthrough covers the servo valve that causes delayed reverse.
According to Sonnax, there was no 5R55S in the 2002 model year. The 2002 Explorer and Mountaineer used the 5R55W, and the 2002 Lincoln LS, Thunderbird and Jaguar S-Type used the 5R55N. The S arrived in 2003 in the Lincoln and Thunderbird. This pack is the W/S style, so it suits a 2002 Explorer or Mountaineer 5R55W. It does not fit a 5R55N: Sonnax notes the N has a 4R70W-style base plate, a reverse pressure switch, and a solenoid with different terminals and circuits. ATRA lists the early 1L2Z-7G391-AG pack for 2002-2003 Ford units, so match the number on your old pack, or send us your year and VIN and we will confirm. If you are not sure which unit you have, use our 5R55 identification guide. For later trucks the 5R55W solenoid kit for 2002-2010 is the better match, and the full range is on the 5R55 collection page.
| Fits | 5R55S 2002 |
| Part type | Solenoid Kit |
| Condition | Remanufactured |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. Those cars used the 5R55N, which has a different solenoid with reverse pressure switch terminals. This pack is the W/S design for the 2002 Explorer and Mountaineer 5R55W.
The W and S share the same pack design, so the part is often listed under either name. What matters is the number on your old pack and your vehicle, not the letter.
ATRA lists 1L2Z-7G391-AG as the early pack for 2002-2003 Ford units. Check your old pack or send us your year and VIN before ordering.
No. The listing states it is remanufactured, with a 1-year warranty.
Mercon V. Set the level with the engine running and the fluid hot, then relearn the adaptives.
