• Engine stall on engagement
  • Increased RPM during acceleration
  • No lockup
  • Overheated fluid
  • Poor fuel economy
  • Poor lube oil control
  • Poor performance
  • Ratio codes


Wear of the torque converter lube regulator valve and bore allow pressure deviations preventing proper control of TC and lube functions.


Re-establish oil pressure control and renew TC and lube operation by reconditioning the bore and installing Sonnax oversized torque converter lube regulator valve kit.

JF015E (RE0F11A)

Oversized Torque Converter Lube Regulator Valve Kit
Part No. 33741F-04K

Also fits Mitsubishi FICJB.

You need this if... View Instructions Find a Distributor

Vehicles equipped with Jatco/Nissan JF015E (RE0F11A) transmissions commonly have TCC apply and release concerns that can be traced to problems in the torque converter lube regulator valve bore. Wear in this bore allows critical fluid to escape from the circuit, resulting in engine stall on engagement, increased RPM during acceleration, no TCC lock-up, overheated fluid, poor lube oil control and ratio codes.

Reconditioning the bore and installing Sonnax oversized torque converter lube regulator valve kit 33741F-04K can banish such issues for renewed TCC control. It features a hardcoat anodized aluminum valve to resist premature wear.

  • Valve
  • End Plug

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.

Jatco/Nissan JF015E (RE0F11A) Valve Body Layout

Jatco jf015e vbl thumb

November 17, 2017

Jatco/Nissan JF015E (RE0F11A) Vacuum Test Guide

Topics: Vacuum Test Guides Transmission Jatco Nissan JF015E (RE0F11A) Transmission

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  • 33741f 04k combo
  • 33741f 04k

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

  • 33741f 04k in test