Remanufactured JF017E CVT valve body with filter and gasket for 3.5L V6 Murano, Maxima, Altima, Pathfinder and QX60, replaces 31705-29X0B.
A 3.5L V6 Murano, Maxima, Altima, Pathfinder, Quest or Infiniti QX60 that shudders between 25 and 45 mph, flares before an upshift, drops into a fixed-ratio limp mode after a hot highway run, or has stored a line-pressure or secondary-pressure code is almost always pointing at the JF017E valve body once the fluid itself has been ruled out. This listing is the remanufactured valve body built for that exact V6 application, sold with a new filter and pan gasket so the pan only has to come off once.
The JF017E (Nissan code RE0F10D) is the heavy-duty version of Jatco's CVT8 family, built behind the V6 rather than the 4-cylinder. The valve body is its hydraulic control center: pump pressure enters the casting and is routed through machined bores and spool valves that clamp the belt against the primary and secondary pulleys and engage the torque converter clutch. Because this is an electronically controlled CVT, the valve body also carries the shift and pressure-control solenoids the TCM commands to time every ratio change and lockup event, so a worn bore or tired solenoid shows up right away as a drivability complaint rather than a slow fluid leak.
Nissan's own technical bulletins treat P17F0 and P17F1 as judder-specific codes, and they only apply this diagnosis when the customer actually feels the judder complaint - a stored code with no felt symptom is not reason enough to replace the valve body. Pull the pan first and read the magnet: heavy steel fuzz or chewed belt material means the chain and pulleys are already damaged and the transmission needs to come out, not just the valve body. See our JATCO CVT Nissan problems and fixes guide for the full walkthrough on separating a valve body fault from belt and pulley wear on this family, and our harsh or delayed shift diagnostic if the complaint is more about engagement than shudder.
This valve body fits the 3.5L V6 JF017E as used in the 2016-2019 Maxima, 2015-2019 Murano, 2013-2018 Altima, 2013-2018 Pathfinder, 2015-2017 Quest and 2014-2016 Infiniti QX60, and it replaces OE numbers 31705-29X0B, 31705-29X0E, 31705-29X6D and 31705-29X1E. The 4-cylinder versions of these same model names use the smaller JF016E valve body instead, which is not interchangeable with this part, so confirm your engine size before ordering. If you are not sure which transmission is under your car, match the casting marks on your old valve body or send us the year, make, model and engine and we will confirm fitment before it ships. Browse the full CVT parts collection for the rest of the JF016E/JF017E lineup.
Each core behind this listing is torn down, cleaned, inspected for bore wear, and reassembled with a new filter and pan gasket included. On the bench, transfer only what the instructions call for from the old unit, seat the new filter fully, and torque the valve body bolts down evenly in a criss-cross pattern rather than a spiral to avoid introducing a new leak path. Refill with genuine Nissan NS-3 CVT fluid only - the wrong fluid will reproduce the same shudder and pressure symptoms this part is meant to fix - then clear the codes and run the CVT fluid deterioration and learned-value reset with a scan tool that supports Nissan CVT functions. If your old solenoids are original-mileage, consider pairing this valve body with a JF016E/JF017E solenoid kit rather than reusing worn solenoids, and if the fluid pulled from the pan was dark or metallic, a full CVT8 master rebuild kit covering the belt and pulleys is the more cost-effective route than chasing one part at a time.
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| Replaces OE | |
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| Fluid required |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. The 4-cylinder versions of these models use the smaller JF016E valve body, which does not interchange with this part. This listing is built specifically for the 3.5L V6 JF017E.
Remanufactured. Each core is torn down, cleaned, inspected and reassembled, and it ships with a new transmission filter and pan gasket so the job is one order instead of three.
Both are Nissan CVT judder-related codes. They only indicate a valve body or belt problem when paired with a felt shudder complaint - a stored code alone with no symptom is not reason enough to replace the part.
Genuine Nissan NS-3 CVT fluid only. Running the wrong fluid reproduces the same shudder and pressure symptoms this valve body is meant to fix.
Clear the stored codes and run the CVT fluid deterioration and learned-value reset with a scan tool that supports Nissan CVT functions. No separate TCM reflash is required on most of these applications.
Pull the pan and check the magnet before you buy. Heavy steel fuzz or belt material means the chain and pulleys are already damaged, and a valve body alone will not fix that - see our JATCO CVT problems guide for the full diagnostic path.
