Sonnax Toyota/Lexus A340F Transmission

Valve Body (View Valve Body Layout Diagram)

Boost Valve Kit 97855-30K

Fits Type 1 (8931 casting code) with .546" dia. large spool. For OE valve with .546" & .480" dia. spools. Fits type 1 valve bodies only.

Helps cure:

Delayed engagement
Low line rise
Low line pressure in Reverse
High line pressure in Reverse
Erratic line pressure
Soft upshifts
Repeated clutch failure

Boost Valve Kit 97855-23K

Fits Type 1 (8931 casting code) with .566" dia. large spool. For OE valve with .566" & .523" dia. spools. Fits type 1 valve bodies only.

Helps cure:

Delayed engagement
Low line rise
Low line pressure in Reverse
High line pressure in Reverse
Erratic line pressure
Soft upshifts
Repeated clutch failure

Checkball 10000-08

Material: Imidized Plastic
Dia.: 0.250"

Helps cure:

Lost or damaged component

Checkball 10000-12

Imidized Plastic, .218" Dia.

Material: Imidized Plastic
Dia.: 0.218"

Dual-Ratio Boost Valve Kit 97741-01K

Fits '00-later V6 & V8, late-style, Type 3 & 4 valve bodies.

Helps cure:

Delayed Reverse
Delayed Forward
Soft upshifts
Low pressure

Lockup Relay Control Valve Kit 77741-02K

For A245E and A246E, fits '05-later with upper casting code 9132. A340E/F Type 3 & 4.

Helps cure:

TCC apply & release concerns
TCC codes
RPM fluctuation
Inadequate lubrication
Bushing failure
Overheated fluid

Lockup Relay Valve Sleeve Kit 97855-27K

Fits '84-'00, replaces 3 spool lockup relay valves in units with 3 or fewer solenoids, type 1 (8930 casting code).

Helps cure:

No lockup
Overheated converter
Overheated fluid
Low cooler flow

O-Ringed End Plug Kit 97741-19K

Fits '00-later V6 & V8, late model Type 3 & 4 valve bodies.

Helps cure:

Soft shifts
Low line rise
Slips & flares

Oversized Lockup Relay Valve Kit 97741-20K

Fits A340E/F '00-later, Type 3 & 4 valve bodies. For A245E and A246E, fits '05-later with upper casting code 9132.

Helps cure:

TCC apply & release concerns
TCC codes
Inadequate lubrication
Overheated fluid
Bushing failure

Tooling:

F-97741-TL20
VB-FIX

Oversized Pressure Regulator Valve Kit 97741-10K

Fits type 3 & 4 valve bodies with .353" dia. EPC (small) spool

Helps cure:

Low line pressure
High line pressure
Poor shift quality
Low lube oil flow
Burnt clutches

Tooling:

F-97741-TL6
VB-FIX

Oversized Pressure Regulator Valve Kit 97855-24K

Replaces 3-spool pressure regulator valve in units with 3or fewer solenoids, Type 1 (8931 casting code).

Helps cure:

Low line pressure
High line pressure
Poor shift quality
Low lube oil flow
Burnt clutches

Oversized Pressure Regulator Valve Kit 97741-06K

Fits type 3 & 4 valve bodies with .426" dia. EPC (small) spool.

Helps cure:

Low line pressure
High line pressure
Poor shift quality
Low lube oil flow
Burnt clutches

Tooling:

F-97741-TL6
VB-FIX

Oversized Secondary Pressure Regulator Valve Kit 97741-18K

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

Helps cure:

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

Tooling:

F-97741-TL18
VB-FIX

Zip Kit® A340-LATE-ZIP

Fits '00-later V6 and V8 units, type 3 & 4.

Helps cure:

Burnt clutches
Delayed engagement
Inadequate lubrication
Low pressure
Slips & flares
Soft shifts
TCC apply & release concerns
TCC codes

Other

Tool Kit F-97741-TL6

Tooling:

VB-FIX

Tool Kit F-97741-TL20

Tooling:

VB-FIX

Tech Resources

July 01, 2020

Toyota/Lexus

A340F Transmission

Boost Valve Kit 97855-30K

Boost Valve Kit 97855-23K

Checkball 10000-08

Checkball 10000-12

Dual-Ratio Boost Valve Kit 97741-01K

Lockup Relay Control Valve Kit 77741-02K

Lockup Relay Valve Sleeve Kit 97855-27K

O-Ringed End Plug Kit 97741-19K

Oversized Lockup Relay Valve Kit 97741-20K

Oversized Pressure Regulator Valve Kit 97741-10K

Oversized Pressure Regulator Valve Kit 97855-24K

Oversized Pressure Regulator Valve Kit 97741-06K

Oversized Secondary Pressure Regulator Valve Kit 97741-18K

Zip Kit® A340-LATE-ZIP

Tool Kit F-97741-TL6

Tool Kit F-97741-TL20

Tech Resources

Always Identify These Valve Bodies BEFORE You Start a Transmission Rebuild

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

Transmission Report: Top Repair Solutions for All Rebuild Levels

Toyota A340E/F Identification Guide

Toyota/Lexus A340E/F, '00-Later Vacuum Test Guide