Complete 4F27E valve body with shift solenoids and internal harness for Ford Focus and Transit Connect four-speed automatics.
A Ford Focus or Transit Connect on the 4F27E four-speed that shifts flared on the 1-2 or 2-3 change, hesitates going into gear after sitting overnight, shudders through torque converter lockup, or keeps throwing a shift solenoid code even after the solenoid has been replaced is almost always pointing at the valve body. This is a complete 4F27E valve body assembly, sold with the shift solenoids and the internal wiring harness already fitted, so you drop it in as one unit instead of robbing parts off the old body.
The 4F27E is Ford's fully electronically controlled four-speed transaxle, built for the Focus and shared with Mazda as the FN4A-EL (sold in some markets under the FNR5 name). The valve body is the hydraulic routing center and, because this is an electronic unit, also the mount for every shift solenoid the transmission computer commands. Line pressure from the pump arrives at the casting, the computer fires the correct solenoid to stroke a bore, and that bore applies the clutch for the gear it wants. A worn solenoid bore, a scored separator plate or cracked internal harness insulation breaks that handshake, and the result is a shift complaint that looks the same whether the root cause is hydraulic or electrical.
Transmission Digest has documented a 4F27E case where harsh shift complaints persisted even after an exchange valve body with solenoids was installed, traced instead to a poor ground elsewhere in the vehicle - so rule out connector and ground issues before assuming the casting itself is bad. On the hydraulic side, a Sonnax TASC Force writeup on the shared FNR5/4F27E platform ties a recurring torque-converter-slip code to worn TCC-valve bores inside the valve body and to leaking pump-stator bushings, which is the kind of wear this complete assembly - solenoids and internal harness included - replaces in one shot rather than piecemeal.
This assembly fits the Ford 4F27E four-speed as used in the Focus from 2005-2011 with the 2.0L and 2.3L Duratec, and the Transit Connect from 2010-2013 with the 2.0L Duratec. Because Ford and Mazda share the casting, it also crosses to FN4A-EL applications in the Mazda 3, 5 and 6, but the 4F27E went through mid-production changes, so check your solenoid connector and separator plate against the listing photos before ordering rather than assuming every year interchanges. For the Mazda-specific version of this same assembly, see our 4F27E / FN4A-EL valve body for Mazda listing.
Drop the pan and filter, unplug the case connector and pull the internal harness through the case, then remove the valve body bolts in the reverse of the torque sequence and lower the body straight down so the manual valve stays engaged with the detent lever. Transfer nothing - this unit ships complete with solenoids and harness installed. On install, line the manual valve up with the detent pin first, hand-start every bolt before torquing any of them, then torque in sequence to the factory spec for your year. Prime the pump and check line pressure before you road test. If the filter and pan gasket on the vehicle are original, replace those in the same job with a filter and pan gasket kit, and if a shift solenoid elsewhere in the pack is marginal, a standalone shift solenoid and filter kit or solenoid block module covers it without pulling this assembly back out.
| Manufacturer part number | |
| Assembly | |
| Transmission | |
| Fitment | |
| Shipping weight | |
| Package dimensions |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Ford Focus 2005-2011 with the 2.0L or 2.3L Duratec, and Ford Transit Connect 2010-2013 with the 2.0L Duratec. It also crosses to the Mazda FN4A-EL version of this transmission, sold separately for that fitment.
Yes - the shift solenoids and internal wiring harness are already installed on this assembly, so you drop it in as a complete unit instead of transferring parts off the old valve body.
Often, yes. A worn solenoid bore or a scored separator plate inside the valve body can keep setting a solenoid code even after a good solenoid is installed, because the problem is the bore it sits in, not the solenoid itself.
It's worth ruling out. Transmission Digest has documented a 4F27E case where harsh shifts traced to a poor electrical ground rather than the valve body, so check grounds and connectors if a new valve body doesn't fully resolve the complaint.
Change the filter and pan gasket so debris from the old unit doesn't recirculate through the new valve body, and check the torque converter clutch apply if you've had any shudder complaints.
Prime the pump and check line pressure before road testing. Make sure the manual valve engages the detent lever correctly and that every case bolt is torqued in the factory sequence.
