Replaces the worn JF016E CVT valve body and solenoid pack on 2012-2014 Nissan Altima, Murano, Pathfinder and Infiniti QX60, part 31705-28X0B.
If your 2012-2014 Nissan Altima, Murano or Pathfinder - or an Infiniti QX60 or JX35 behind the same transmission - judders under light throttle between 30 and 45 mph, flares instead of holding ratio, or hesitates going into Drive after a cold start, the valve body inside the JF016E (RE0F10D) CVT is the most common cause. This is a complete valve body assembly with the solenoid pack already mounted, built to replace casting 31705-28X0B, so you install a known-good unit instead of chasing the fault solenoid by solenoid.
This CVT has no fixed gear sets - the valve body is the hydraulic and electronic go-between that lets the computer hold any ratio between the extremes. It carries the pressure control and step-motor solenoid circuits, and it directs regulated line pressure to the primary and secondary pulley pistons and the forward and lockup clutches based on what those solenoids command. The step motor's physical position inside the valve body sets the baseline pulley ratio point the hydraulics work from. Once the control bores wear or the screens load up with clutch debris, the pressure signal the computer is working with no longer matches what is actually happening at the pulleys, and the shift quality falls apart.
Once the valve body bores have worn, cleaning the solenoids will not bring pressure control back, so a fluid-and-filter service alone will not fix this. Confirm the diagnosis by pulling codes and noting whether the shudder shows up specifically in that 30-45 mph window rather than across the whole speed range, since that pattern points at pressure control rather than a mechanical belt problem. Sonnax documentation on this transmission family backs worn pump flow control and secondary pulley control valves as causes of exactly this kind of pressure-related shudder and flare.
This assembly replaces part number 31705-28X0B and fits 2012-2014 Nissan Altima 2.5L, Murano, Pathfinder, X-TRAIL, Teana and Elgrand, Infiniti QX60 and JX35, and the Renault Latitude that shares the same JF016E unit. Confirm your old valve body actually carries the 28X0B casting or a documented superseding number before ordering - Nissan ran several CVT variants across these same model years, and the JF011E and JF017E valve bodies from related platforms are not interchangeable with this one. For later build years, see the 2013-2017 Altima and Rogue valve body or the full CVT parts collection.
Drop the pan, pull the filter, and photograph the harness routing and step motor position before disturbing anything - the step motor arm has to go back into the pulley ratio lever in exactly the position it came out of, or the unit will not hold ratio correctly. Torque the valve body bolts in a spiral pattern from the center out rather than around the perimeter, seat the harness connector until it clicks, and refill with genuine Nissan NS-2 or NS-3 CVT fluid matched to your year. Most installs also need a TCM reset and a fluid-degradation counter clear, or the adaptive strategy keeps commanding pressure for the old, worn valve body. Replace the clutch drum or run the full overhaul kit at the same time if the fluid showed heavy clutch material.
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| Replaces part number | |
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| Fluid required |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes, it is a complete assembly with the solenoid pack already mounted to the casting, built to replace part number 31705-28X0B.
2012-2014 Nissan Altima 2.5L, Murano, Pathfinder, X-TRAIL, Teana and Elgrand, Infiniti QX60 and JX35, and the Renault Latitude built on the same JF016E unit.
Check the part number stamped on your old valve body against 31705-28X0B or a documented superseding number. Nissan ran several CVT variants across these model years, and the JF011E and JF017E bodies are not interchangeable with this part.
Shudder or judder between 30 and 45 mph, a flare where the ratio should hold steady, delayed engagement into Drive after a cold start, and stored codes such as P0841, P0847, P17F0 or P17F1.
Once the valve body's control bores have worn, cleaning or replacing the solenoids and fluid will not restore pressure control. The valve body itself has to be replaced.
The step motor arm must be returned to the exact position in the pulley ratio lever, the bolts torque in a center-out spiral, and most installs need a TCM reset and fluid-degradation counter clear afterward.
