JF011E Valve Body 2013, remanufactured and ready to install. Fits the JF011E. Ships fast from the USA.
If your 2013 Nissan Altima judders, shudders, or bangs once it's warmed up - and especially if a scan tool shows a stored P17F0 or P17F1 code - you're looking at one of the most thoroughly documented failure patterns on the JF011E CVT. This is a remanufactured, bench-ready valve body for the JF011E, but before you add it to the cart, it's worth knowing that Nissan's own diagnostic bulletin for this exact complaint splits into two different repairs depending on which of those two codes is actually stored, and only one of them is fixed by this part.
Unlike a stepped automatic, the JF011E has no fixed gears - a steel push belt rides between two variable-diameter pulleys, and the valve body is what controls everything about that belt's behavior. It houses the pressure sensors, the variator pressure solenoids, the torque converter clutch solenoid, and a stepper motor that splits hydraulic pressure between the primary and secondary pulleys to set the ratio. When that pressure split goes out of spec, the belt doesn't track the pulleys cleanly, and the driver feels it as a shudder or bump rather than a missed gear.
Nissan's bulletin for 2013-2016 Altima and 2014-2016 Rogue judder complaints is specific about this: if the stored code is P17F1, the dealer repair is to remove the valve body, inspect the CVT belt, and - if the belt checks out - replace the valve body alone, which is exactly what this listing is for. If the stored code is P17F0, Nissan's own flowchart calls for replacing the entire CVT assembly, not just the valve body, because that code points to belt or pulley wear beyond what a valve body swap corrects. Pull the code before you buy: a P17F1 with a good belt is this part's repair, a P17F0 likely is not, and our JF011E/RE0F10A master rebuild kit is the more realistic fix if the belt or pulleys turn out to be the actual damage.
Nissan's own bulletin confirms this exact judder-and-code pattern on the 2013-2016 Altima (L33) with the 4-cylinder engine, which covers this listing's 2013 model year directly. The same JF011E transmission, badged RE0F10A, also shows up across other 2013 Nissan, Mitsubishi and Dodge models built on this CVT, but Nissan's documented bulletin coverage for this specific judder pattern is Altima- and Rogue-focused, so if your vehicle is a 2013 Sentra, Juke or something outside the Altima, match your casting marks and connector count against the listing photos or send your VIN before ordering. See our CVT parts collection for the rest of what we stock across this platform.
Run the transmission on genuine Nissan NS-2 CVT fluid only - Nissan's own guidance is that a non-NS-2 fluid degrades both drivability and CVT durability over time, and a refill done by circulating fluid through the cooler line typically takes 30-50% more fluid than the static drain-and-fill amount, so budget for extra. Inspect the belt per the bulletin before you button the pan back up, since installing this valve body over a belt that's already slipping won't resolve the judder for long. Pair the valve body with a fresh CVT cooler if overheating was part of the original complaint, and check the push belt listing directly if your inspection turns up wear rather than a clean bill of health. Clear the stored code and road test before calling the repair done.
| Fits | JF011E 2013 |
| Part type | Valve Body |
| Condition | Remanufactured |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It depends on the stored code. Nissan's bulletin for 2013-2016 Altima judder sends a P17F1 code to a valve body replacement (this part) after the CVT belt checks out fine, but sends a P17F0 code to full CVT assembly replacement instead. Confirm your code before ordering.
Both are CVT judder codes, but Nissan's repair path differs: P17F1 means remove the valve body and inspect the belt, replacing the valve body alone if the belt is good. P17F0 points to belt or pulley damage serious enough that Nissan's flowchart calls for replacing the entire CVT assembly.
The JF011E (also badged RE0F10A) was used across several 2013 models on this platform, but Nissan's documented bulletin for this judder pattern specifically covers the Altima and Rogue. For other models, match your casting marks and connector count or send your VIN before ordering.
Genuine Nissan NS-2 CVT fluid only - Nissan warns that other fluid types will hurt both drivability and long-term CVT durability. A cooler-line refill also takes roughly 30-50% more fluid than a simple drain and fill.
P1778 is a stepper-motor fault - it sets when the TCM commands a ratio change through the stepper motor and the transmission doesn't complete it within the expected steps. That's a different failure than the P17F0/P17F1 judder codes and points at the stepper motor rather than the belt.
Sonnax ties that symptom pattern to worn secondary pulley pressure control rather than the primary judder failure mode - it's a related but separate wear point inside the same valve body.
