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  • Chatter on acceleration
  • Damaged valve body casting
  • High line pressure
  • Low line pressure
  • Pulley breakage
  • Slips in Forward & Reverse


Excess bore/valve wear allows circuits to cross-leak which in most instances will exhaust critical oil pressure and volume back to the sump. Wear at the inboard valve spools can contribute to excess primary pulley oil pressure. Wear at the outboard spool can result in low primary pulley oil pressure.


Restore proper hydraulic operation by refurbishing the bore and installing Sonnax's oversized primary pulley regulator valve kit.

JF015E (RE0F11A)

Oversized Primary Pulley Regulator Valve Kit
Part No. 33741F-02K

Also fits Mitsubishi FICJB.

You need this if... View Instructions

In Jatco/Nissan JF015E (RE0F11A) units, the primary pulley regulator valve controls oil pressure in the primary pulley circuit. A worn bore or valve spool can cause loss of oil pressure control in the primary pulley circuit. Symptoms that may indicate degraded primary pulley pressure control are: loss of higher gear ratios, high or low primary pulley pressure. Reconditioning the bore and installing Sonnax oversized primary pulley regulator valve 33741F-02K can restore optimal oil pressure in the primary pulley circuit.

  • Hardcoat anodized aluminum valve contests premature wear
  • Oversized valve paired with OE spring matches OE pressure regulation algorithm.
  • 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 02k combo
  • 33741f 02k

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 02k test