4R70W Pump 2004-2008, remanufactured and ready to install. Fits the 4R70W. Ships fast from the USA.
This is a remanufactured front pump for the 2004 through 2008 Ford 4R70W, the late version of the transmission that Ford also labels 4R70E. It is the right search result if your F-150, Crown Victoria, Grand Marquis or Town Car from those years hesitates before Drive or Reverse grabs, slips everywhere once the fluid is hot, or has a whine that rises and falls with engine speed. The pump arrives rebuilt and ready to bolt in, carries a 1-year warranty, and ships from the USA.
The pump body is the front wall of the transmission. The torque converter hub turns the inner and outer pump gears whenever the engine runs, and that oil supplies line pressure, converter charge, cooler flow and lube for the whole unit. On this family the pump body also houses the intermediate clutch piston, and the bolted-on stator support carries the forward clutch feed through its sealing rings. That is why a tired pump in a 4R70W does more than drop pressure: it can also cost you a clean 1-2 shift.
The 2004 redesign changed exactly that piston. According to ATRA's 4R70W/4R75E interchange notes, the late pump body uses a larger bonded rubber intermediate piston in place of the earlier aluminum one, which gives the intermediate clutch more holding power. The 2004-2005 units pair it with a wave-style return spring that sits on a seat in the case; 2006 and later use a one-piece spring. Neither piston nor spring can be swapped onto the early pump.
Scan for codes first. A 2004-up unit uses a turbine shaft speed sensor and a new output speed sensor, and ratio or speed sensor faults can make it shift badly with a perfectly good pump. Then put a gauge on the line pressure tap. Low pressure in every range points at the pump, but pressure that is fine at idle and will not rise is the classic pressure regulator valve bore wear covered in our 4R70W and 4R75W problems guide. If you drive one of the sedans, the Crown Victoria shift problems guide walks the same tests on that platform, and truck owners can use the F-150 4R70W guide.
This pump is listed for 2004-2008 4R70W transmissions. Because the late pump body is machined for the bonded intermediate piston, match it to the pump you remove and check which return spring your case uses. ATRA notes the late pump can go into an earlier case only as a complete assembly, and a 2004-2005 style wave spring needs its seat in the case or it will cut into the aluminum. If your transmission is a 1995-2003 unit, look at the 1995-2003 4R70W pump instead, and heavy-duty units have their own 2004-2008 4R75W pump. Not sure? Send us your year and VIN and we will check it, or browse the 4R70W collection.
If the pan showed friction material, the 4R70W overhaul kit for 2003-2014 covers the clutches and seals in one box, and the 2005-2008 solenoid kit is cheap insurance while the transmission is apart.
| Fits | 4R70W 2004-2008 |
| Part type | Pump |
| 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.
Not as a simple swap. The 2004-up pump body uses a larger bonded rubber intermediate piston and a different return spring. ATRA says it can be used in an earlier case only as a complete assembly with the matching piston and spring, and a 2004-2005 wave spring needs its seat in the case. Send us your year and VIN if you are unsure.
Yes, it is the same family. Transmission Digest describes the 2004 4R70E and 4R75E as another version of the 4R70W, with a turbine shaft speed sensor added, a new sun gear shell and a ring gear with extended parking lugs for the output speed sensor.
It can be. The intermediate clutch piston lives in the pump body on this transmission, so a leaking piston seal or worn bore shows up as a slipping or flared 1-2 shift. Check line pressure and rule out the pressure regulator valve and solenoids before you condemn the pump.
A new front seal, pump gasket and O-ring, the filter, and fresh MERCON V at minimum. Flush the cooler, inspect the converter hub, and if the old pump failed from debris, plan on a full overhaul kit since the same contamination went through every clutch pack.
There is no special pump relearn. Clear any codes, drive the vehicle through normal light and moderate throttle shifts so adaptive shift pressure settles, then recheck the fluid level hot.
