4R75W Shift Kit 2005-2008, new other (see details) and ready to install. Fits the 4R75W. Ships fast from the USA.
Although this listing is titled shift kit, it is not a valve body spring kit. The part pictured is a set of three electrical solenoids for the 2005-2008 4R75W: the dual shift solenoid pack, the EPC (electronic pressure control) solenoid and the torque converter clutch solenoid. It is meant for the F-150 and for the Crown Victoria, Grand Marquis and Town Car of those years when the transmission starts in the wrong gear, will not upshift, shifts hard everywhere, or never locks the converter, and the scan tool points at a solenoid. If you were after valve body springs and valves, see the TransGo 4R75W shift kit instead.
The 4R75W shifts by switching the two coils in the shift solenoid pack on and off; each on/off pattern commands a gear, and if power is lost the unit falls back to a default gear, which is why an electrical fault often feels like being stuck in one gear. The EPC solenoid is a variable force part that sets line pressure for every apply, so a weak or sticking one gives soft slipping shifts or harsh bangs. The TCC solenoid applies the converter clutch at cruise. In these years all three plug into the molded hard wire frame Ford adopted in 1998, and they are a different design from the solenoids used after the 2009 harness change.
Do not condemn the solenoids on a code alone. Measure resistance through the case connector and again at the solenoid; an open in the lead frame or a terminal pushed back in the connector produces the same codes. Transmission Digest documented a 4R70W that started in a higher gear because two terminals in an aftermarket case connector, one of them the 12-volt supply, never touched the frame. Our shift solenoid testing guide walks through the checks, and the F-150 shift problem guide covers truck-specific causes.
This set is listed for 2005-2008 4R75W units, with the F-150 as the reference application, and it suits the hard wire frame design those years share. It will not fit 2009-later 4R75E units, which went back to a soft internal harness with new solenoids that Ford says do not retrofit to earlier models, and 1993-1997 units with the white soft-wired connector use different parts as well. Compare connector shapes and the solenoid mounting with what is on your valve body, or send us your year and VIN. Browse more parts in the 4R70W and 4R75W collection.
All three solenoids are serviced with the pan dropped; the transmission stays in the vehicle. Disconnect the battery, drain and drop the pan, remove the filter, and unplug each solenoid from the lead frame before unbolting it. Inspect the frame for cracked connectors or burnt terminals while you are in there. Torque the solenoid bolts to spec, fit a new filter and pan gasket, and refill with Mercon V; a case of Motorcraft Mercon V covers a pan drop with fluid to spare. Check level hot in Park, clear the codes and reset adaptive memory, then road test through every gear and confirm lockup at cruise.
| Fits | 4R75W 2005-2008 |
| Part type | Shift Kit |
| Condition | New Other (See Details) |
| Brand | OEM |
| Reference | F150 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. Despite the title, the photo shows a solenoid set: the dual shift solenoid pack, the EPC solenoid and the TCC solenoid. It contains no valve body springs or valves. For a valve body kit, look at the TransGo 4R75W shift kit.
No. Ford changed the 4R75E to a soft internal harness with new solenoids in 2009, and those parts do not interchange with the 2005-2008 hard wire frame design. This set is for 2005-2008 units.
Only one may have failed, but they live in the same heat and wear together, and replacing the set during one pan drop saves doing the job twice. Test each one first so you know which was causing the code.
The pictured set shows the three solenoids only. Plan on a new filter and pan gasket, since the pan has to come off anyway.
Refill with Mercon V, check level hot in Park, clear codes, reset adaptive learning with a scan tool or by disconnecting the battery, and drive through all four gears and converter lockup.
