4R75W Planetary 2004, remanufactured and ready to install. Fits the 4R75W. Ships fast from the USA.
In 2004 the 4R75W was the heavy-duty member of Ford's rear-drive four-speed family, and it went into a short, specific list of vehicles: the 5.4L two-valve Expedition and E-Series van, the Mustang GT and Mach 1, the Mercury Marauder and the Crown Victoria Police Interceptor. If one of those now whines at cruise, has lost a gear, or left steel on the pan magnet, this remanufactured 4R75W planetary is listed for that 2004 model year.
The 4R75W is a stronger development of the 4R70W and keeps the same layout: a single compound (Ravigneaux-type) gearset with a forward sun gear, a reverse sun gear, short and long pinions in one carrier, and a ring gear that drives the output shaft. The clutches, the intermediate clutch and the overdrive band only decide which member is held or driven; the gearset produces the ratio. Ford's published ratios for the family are 2.84 first, 1.55 second, 1.00 third, 0.70 overdrive and 2.32 Reverse. Because all four forward gears and Reverse pass through these pinions, worn needle bearings or thrust faces show up as noise or slippage that a clutch job alone will not fix. Heavy towing in the 5.4L trucks and hard police duty cycles are exactly where pinion bearings and thrust surfaces wear first.
ATRA's 4R70W/4R75E interchange notes put the big hard-part change at 2004. The output speed sensor stopped reading six machined holes in the ring gear and started reading 24 extended parking pawl lugs. ATRA is blunt that there is no interchange: an early ring gear in a 2004-up case drops the sensor signal by about 75 percent and the transmission will not shift out of first, while a late ring gear in an early case reads 400 percent fast and shifts into fourth by about 10 mph. The planetary carrier itself kept the same ratio and dimensions across these years, with a welded rear cover on the later 4R70E/75E style replacing rivets. The 2004-up sun shell was also made thicker at the gear chamfer to resist cracking.
Start by separating gear noise from pump or converter noise: noise present in Park with the engine revved points forward of the gearset. Read the pan magnet, then scan for ratio and speed sensor codes and check the sensor and its wiring before condemning hard parts. Our 4R70W Expedition common problems guide covers the 5.4L trucks, and the Crown Victoria guide covers the Police Interceptor and Panther cars. With the unit apart, check pinion end play, spin each pinion for roughness and look for blued or chipped teeth.
This listing covers the 2004 4R75W. That same year Ford also built the 4R70W, 4R70E and 4R75E, often in the same body style, so read the tag on the transmission case rather than going by the vehicle alone. Count the output speed sensor targets on your old ring gear before ordering. If the tag or the parts do not match what you expect, send us your year and VIN and we will confirm. A 2004 4R70W planetary is also listed for the normal-duty units, and every part for this family is on the 4R70W/4R75W collection page.
| Fits | 4R75W 2004 |
| Part type | Planetary |
| 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.
For 2004 the 4R75W went in the Mustang GT and Mach 1, Mercury Marauder, Crown Victoria Police Interceptor, and the 5.4L two-valve Expedition and E-Series van. Other 2004 Fords used the 4R70W, 4R70E or 4R75E, so check the case tag.
Not without matching the ring gear. Ford changed the output speed sensor target for 2004, and ATRA says early and late ring gears do not interchange. Send us your VIN if you are unsure what you have.
Thrust washers and bearings around the gearset, worn bushings, the filter and pan gasket, and the clutch packs if steel debris reached them. Flush the cooler and lines so old metal does not come back.
Keep the 2004 sun shell, bearing and forward sun gear together as a set. ATRA notes the late shell is shorter at the bearing area, and mixing it with early pieces throws off end play.
MERCON V. Ford did not move the Panther cars to MERCON LV until the 2009 model year.
