Plate-mounted RE4F03A solenoid pack with harness and case connector for the 2007-2012 Nissan Versa 1.6L and 1.8L four-speed automatic.
A 2007-2012 Nissan Versa with the four-speed automatic that suddenly slams the 1-2 shift, refuses to leave third gear, or lights the check engine light with a shift solenoid or line pressure code very often needs the solenoid assembly on top of its valve body. This listing is that whole assembly, prewired and mounted on its bracket: the shift solenoids, the overrun clutch solenoid, the torque converter clutch solenoid and the separate line pressure solenoid, with the internal harness and the round case connector. It is for the conventional four-speed automatic, not the CVT that many Versas use.
The RE4F03 family (the Versa unit is often tagged RE4F03B) is a hydraulically shifted four-speed run by the engine computer. Two on/off shift solenoids set the gear by switching the shift valves, the overrun clutch solenoid decides when the transmission gives engine braking, the TCC solenoid locks the converter, and the duty-controlled line pressure solenoid sets how hard every clutch and band applies. When a solenoid circuit fails, the computer sets a code and falls back to a fail-safe gear, usually third, so the car still moves but starts poorly.
Read the stored codes first. Then check the wiring, because Transmission Digest's ATSG Shift Pointers column on the RE4F03/4B notes that the line pressure solenoid grounds through an eyelet bolted to the valve body, and a loosely crimped eyelet or a lifted wire crimp can cause the hard 1-2 shift by itself. If the eyelet and crimps are tight and the code returns, replacing the solenoid assembly is the usual fix. Resistance checks at the case connector are explained in our guide to testing a transmission solenoid with a multimeter, and our solenoid testing without a factory scan tool covers activation tests. Smell and look at the fluid too; burnt, dark ATF suggests clutch damage that a solenoid pack alone will not fix.
Listed for the 2007-2012 Nissan Versa hatchback and sedan with the 1.6L or 1.8L four-cylinder and the four-speed automatic. The part is sold under the transmission name RE4F03A. Since Nissan used both a CVT and this four-speed in the Versa during these years, confirm that your car has the four-speed before ordering. Then compare the bracket shape, the solenoid positions and the round case connector with the photos, or send us your year and VIN and we will check before it ships. Other parts for this transmission are in our hard parts collection.
If the transmission has been slipping or the fluid is badly burnt, the clutches likely need attention too, and our RE4F03A master rebuild kit for the Versa covers the overhaul.
| Transmission | Nissan RE4F03A 4-speed automatic |
| Fits (per listing) | Nissan Versa 1.6L and 1.8L L4, 2007-2012 |
| Part number | RE4F03A |
| Construction | Metal solenoids with plastic housings, harness and case connector on bracket |
| Weight | 12.8 oz |
No. It is for the conventional four-speed automatic only. Versas of these years were also sold with a CVT, which uses completely different internal parts. If your car has the four-speed automatic, this is the right type of part.
The complete assembly as one piece: the shift solenoids, the overrun clutch solenoid, the torque converter clutch solenoid and the line pressure solenoid, already wired with the internal harness and case connector on the mounting bracket.
Often, but check the ground first. On this transmission the line pressure solenoid grounds through an eyelet bolted to the valve body, and a loose crimp there can cause the hard shift on its own. If the ground and crimps are good and the code comes back, the solenoid assembly is the usual fix.
The Versa owner's manual calls for Genuine Nissan Matic S ATF, with Genuine Nissan Matic D allowed if Matic S is not available. Check the level at operating temperature after the road test.
No programming is required. Clear the codes, then drive through all four gears and converter lockup so the computer can confirm every circuit. If a code returns right away, recheck the case connector and the ground eyelet.
