Reman JF017E/RE0F10D CVT valve body for 3.5L V6 Nissan Altima, Murano, Pathfinder, Maxima and Infiniti QX60 - cleaned, calibrated and bench-tested.
When a 3.5L V6 Altima, Murano, Pathfinder, Maxima, Quest or Infiniti QX60 judders on light throttle, flares or slips coming up to speed on a ramp, or drops into fail-safe with a pressure or ratio code, the fix is usually this valve body rather than pulling the whole CVT apart. This is a remanufactured JF017E (Nissan RE0F10D) valve body with the shift solenoids already installed, cleaned, calibrated and function-tested before the assembly ships.
The JF017E is the CVT8 unit Jatco built for the V6 side of this platform. Its valve body is the hydraulic control center that routes line pressure through machined bores and spool valves to clamp the belt against the primary and secondary pulleys and command the torque converter clutch. The solenoids mounted on the valve body are what the TCM actually fires to move those valves, so once a bore wears or a solenoid weakens, the symptom shows up as a felt shift or lockup problem rather than a fluid leak you could otherwise ignore.
Each of these symptoms can also come from low or degraded CVT fluid, so a fluid check and a scan for stored codes should come first. If the fluid is correct and the codes point to line pressure, secondary pressure, or the judder-specific P17F0/P17F1 pair, this valve body is the right next step; our JATCO CVT Nissan problems and fixes guide walks through separating a hydraulic fault like this from belt and pulley wear, which needs a different repair. If the symptom is specifically a harsh or delayed shift rather than judder, read our harsh and delayed shift walkthrough as well.
This valve body covers the 3.5L 3498cc V6 JF017E as installed in the 2013-2018 Altima, 2015-2019 Murano, 2013-2018 Pathfinder, 2016-2019 Maxima, 2015-2017 Quest and 2014-2016 Infiniti QX60, and it replaces OE numbers 31705-29X0A, 31705-29X0B, 31705-29X0E, 31705-29X1A, 31705-29X1B, 31705-29X6D, 31728-29X0D and 31397-1XF0D. The 2.5L four-cylinder versions of these same model names run a different Jatco unit and will not take this valve body, so confirm your engine displacement and the casting/part number on your existing unit before ordering, or send us your year, make, model and VIN. Browse the CVT parts collection for the rest of the JF016E/JF017E lineup, including the lighter-duty JF016E valve body used on the 4-cylinder cars.
Each core is torn down, cleaned and inspected, with the valves and bores checked for wear before the solenoids are cleaned, calibrated and tested separately from the casting - some light valve-to-bore witness marking is normal on a reman unit and is not a defect. Drop the pan, transfer your existing filter over unless it is worn or contaminated, and refill with Nissan NS-3 CVT fluid - no other fluid is correct for this transmission. Clear the stored codes and relearn the transmission with a scan tool that supports Nissan CVT functions; no separate TCM programming is required on most of these applications. If the fluid you pulled was dark or carried metallic debris, pair this valve body with the CVT8 master rebuild kit rather than replacing the valve body alone, and check a fresh solenoid kit if your old solenoids are original-mileage despite this unit shipping with its own tested solenoids installed.
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| Replaces OE | |
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The solenoids ship installed on the valve body. They are cleaned, calibrated and function-tested separately from the casting as part of the remanufacturing process, not simply reused as pulled.
Light valve-to-bore witness marking on the casting is normal on a reman unit and does not affect function. Heavy scoring or a bent valve would not pass inspection and would not ship.
No. The 2.5L four-cylinder versions of these models use a different Jatco valve body. This listing is built for the 3.5L V6 JF017E/RE0F10D only.
No separate programming is required on most of these applications. Clear the stored codes and run the standard relearn with a scan tool that supports Nissan CVT functions.
Both are Nissan CVT judder codes. If fluid condition is correct and the codes are stored alongside a felt judder complaint, this valve body addresses the hydraulic cause; if the belt and pulleys are already damaged, the valve body alone will not resolve it.
Genuine Nissan NS-3 CVT fluid only. The wrong fluid reproduces the same judder and pressure symptoms this valve body is meant to correct.
