Four-bearing set with RNU208-3, B34-18AUR, B45-128UR and 55TM05 bearings for Nissan JF016E and JF017E CVTs rebuilt for pulley or whine noise.
A Nissan Altima, Rogue, Murano or Pathfinder CVT that drones louder the faster you go is one of the most common complaints on the Jatco JF016E and JF017E (Nissan RE0F10D and RE0F10E). Very often the noise is a bearing, not the belt. This kit supplies the four bearings most often replaced when one of these units is apart: one RNU208-3 cylindrical roller bearing and the B34-18AUR, B45-128UR and 55TM05U40AL deep groove ball bearings.
The primary and secondary pulley shafts in this CVT spin at engine and output speed while the pulley halves clamp the belt or chain with very high hydraulic force. The bearings carry that load and keep each shaft exactly in line. The pulley faces and the belt only work if the shafts stay parallel, so even a little play shows up as noise and uneven contact. A cylindrical roller bearing like the RNU208-3 takes heavy radial load, while the ball bearings handle the combined loads elsewhere in the shaft and gear train. Once a race spalls, the bearing starts shedding steel into fluid that then feeds the valve body and pulley pistons.
Sonnax's in-vehicle CVT test is worth doing first. Drive at the steady speed where the noise is strongest, then manually select a lower ratio so engine RPM rises while road speed stays the same. If the noise follows engine RPM, suspect the primary pulley bearing. If it stays the same, the secondary or final drive bearing is the likely source. Pressures and fluid level are usually normal with a bearing failure, which is what separates it from a pump or valve body problem. Our Jatco CVT problems and fixes guide covers the other common Nissan faults, and the CVT failure patterns guide helps rule out belt and valve body issues that sound similar.
This set is listed for the Jatco JF016E and JF017E (RE0F10D and RE0F10E), found in Nissan Altima, Rogue, Murano and Pathfinder models plus several Mitsubishi and Suzuki applications. Bearing suppliers changed over the life of these units, and the earlier JF011E and the 3.5L JF010E use different bearings, so check the numbers stamped on the bearings you remove against RNU208-3, B34-18AUR, B45-128UR and 55TM05U40AL before you press anything. If you cannot read the old ones, send us your year and VIN. See all our CVT parts on the CVT parts page.
Most bearing jobs turn into a full reseal, so pair this kit with the JF017E overhaul kit. If the pan held a lot of metal, also inspect the pump and consider the JF016E oil pump assembly.
| Transmission | Jatco JF016E / JF017E (Nissan RE0F10D, RE0F10E) CVT |
| Pieces | 4 |
| Bearing numbers | RNU208-3, B34-18AUR, B45-128UR, 55TM05U40AL |
| Material | Bearing steel |
Four bearings: one RNU208-3 cylindrical roller bearing and three deep groove ball bearings numbered B34-18AUR, B45-128UR and 55TM05U40AL.
It is listed for the JF016E and JF017E (RE0F10D and RE0F10E). The JF011E and JF010E use different bearings, so match the stamped numbers on your old bearings before ordering.
At the speed where the noise is worst, manually select a lower ratio. Noise that follows engine RPM points to the primary pulley bearing. Noise that stays constant points to the secondary or final drive bearing. Fluid level and pressures are usually normal with a bearing failure.
No. These are internal pulley and shaft bearings, so the case has to be split. Most shops replace seals, the filter and inspect the pulleys during the same job.
Nissan NS-3 CVT fluid. Flush or replace the cooler first, then run the CVT learn procedure with a scan tool after the refill.
