Replacement JF015E / RE0F11A CVT valve body with filter kit for 2013-2019 Nissan Sentra 1.8L and 2012-2016 Versa 1.6L, part 31705-X428B.
Shudder pulling away from a light, a flare in RPM as the car picks up speed, or a Sentra or Versa that suddenly goes into limp mode with pressure codes - on the Jatco JF015E these complaints very often come back to the control valve body. This kit pairs a replacement JF015E valve body, Nissan's RE0F11A or CVT7, carrying reference number 31705-X428B, with a filter kit, so you only open the unit once and the new hydraulics start on clean filtration.
The JF015E is Jatco's small CVT for 1.6L and 1.8L engines, and it is unusual because it pairs a steel push belt between two variable pulleys with a two-speed planetary sub-gearbox behind them. The valve body is what makes both halves work. It meters line pressure, sets the clamping pressure on the primary and secondary pulleys so the belt does not slip, controls the ratio change, and applies the clutch and brake in the sub-gearbox when the unit moves from low to high range. Pulley clamping pressures on these units can reach around 850 psi, so a small amount of bore wear or one sticking regulator valve is enough to upset the whole calibration. Rebuilders also note that a new CVT throws off fine metal particles while it is breaking in, and that debris finds its way into the valve body bores.
Valve body faults on this unit have look-alikes. A worn flow control valve in the oil pump causes low pressure codes at low mileage, a worn primary pulley piston can mimic a pressure control fault, and a loose reluctor on the secondary pulley creates erratic speed signals. Pull codes and live data, check the fluid for heavy metal or a burnt smell, and review any Nissan service bulletins for your VIN, since some called for an updated valve body that needs programming. Our Jatco CVT problems and fixes guide lays out the order to check things, and CVT slipping under load helps you separate a belt and pulley problem, which a valve body will not cure, from a pressure problem, which it will.
This valve body is listed for the 2013-2019 Nissan Sentra with the 1.8L engine and the 2012-2016 Nissan Versa and Versa Note with the 1.6L, all using the JF015E / RE0F11A. The JF015E also went into other small Nissan and Mitsubishi models, but those are not covered by this listing. Calibrations and casting details changed over the run, so compare the 31705-X428B reference and the casting on your old body, or send us your year and VIN before you order. If you are comparing options, we also stock this body with solenoids installed, and every JF015E part is on our CVT parts page.
If the fluid was dark or the unit ran hot, change the cooler filter too. Our JF015E cooler and filter kit and the JF015E service kit with NS-3 fluid cover the rest of the job.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is listed for the 2013-2019 Sentra with the 1.8L JF015E / RE0F11A. Compare the 31705-X428B reference and casting with your original, or send your VIN and we will confirm.
The listing describes a complete control valve body with a filter kit. If you want a body with solenoids clearly included, see our JF015E valve body with solenoids listing.
If the belt and pulleys are healthy and the shudder comes from pressure control, yes. If the belt or pulley faces are scored, the valve body alone will not fix it, so inspect the fluid and pulleys first.
Yes. The JF015E needs the CVT learn, a fluid degradation reset and a drive relearn after the valve body is replaced, and some bodies need calibration data loaded.
Nissan NS-3 CVT fluid or an equivalent. Filling with a generic multi-vehicle fluid can bring the shudder right back.
Worn flow control valve bores in the pump are a common JF015E low-mileage failure and can mimic a valve body fault. If pressure codes persist, inspect the pump.
