Symptoms:

  • TCC apply & release concerns
  • Burnt TCC apply components
  • Overheated transmission
  • Bushing wear

Cause:

Oscillation of the steel secondary pressure regulator valve within the aluminum casting causes wear, which will allow converter feed oil to leak to exhaust and not supply the lube circuit, resulting in converter complaints, burnt apply components and lube related failures.

Correction:

Restore proper hydraulic control by refurbishing the bore and replacing worn components with Sonnax oversized secondary pressure regulator valve kit.

Warning:

Required tool kit F-97741-TL18 is no longer in production. Check with your distributor for availability.

A340E, A340F

Oversized Secondary Pressure Regulator Valve Kit
Part No. 97741-18K

Fits '00-Later V6 & V8, late models, Type 3 & 4 valve bodies.


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

The secondary pressure regulator valve in Toyota A340E and A340F late units receives regulated line fluid pressure from the main pressure regulator valve, and routes it to the converter and lubrication circuits. The continual oscillation of the steel valve within the aluminum casting creates wear, allowing this valuable fluid pressure to exhaust, resulting in converter complaints, burnt apply components and lube-related failures. Sonnax oversized secondary pressure regulator valve kit 97741-18K restores proper hydraulic clearance in a refurbished bore and includes an O-ringed end plug to positively seal the balance pressure circuit.

  • Hardcoat anodized valve combats premature wear
  • O-Ringed end plug positively seals the balance pressure circuit
  • Valve
  • End Plug
  • O-Rings (2) 1 Extra

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.

Toyota/Lexus A340, A340E/F/H Valve Body Layout

Toyota/Lexus A340, A340E/F/H Valve Body Layout
  • A340E, A340F Oversized Secondary Pressure Regulator Valve Kit 97741-18K
  • A340E, A340F Oversized Secondary Pressure Regulator Valve Kit 97741-18K

You need this if...

Vacuum tests at the ports indicated fail to hold at least 18 in-Hg.

A340E, A340F Oversized Secondary Pressure Regulator Valve Kit Vacuum Test Locations