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

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. Each layout:

• Displays an exploded view location guide for individual valve trains
• Identifies symptoms and recommended solutions for quality rebuilds
• Provides active links to view specific part details
• Lists any tools/fixtures required for part installation
• Illustrates correct part orientation

With more than 60 layouts to choose from, these convenient, go-to reference guides are valuable resources for any shop.

Click here to view PDF if the tech resource does not appear below.

Related Units

Related Parts

Required

Recommended

81-40LE, A245E, A246E, A340E, A340F, A650E

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

Required

Recommended

A340, A340E, A340F, A340H

Boost Valve Kit 97855-23K

Fits Type 1 (8931 casting code) with .566" dia. large spool.

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

Required

Recommended

A340, A340E, A340F, A340H

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

Required

Recommended

A340, A340E, A340F, A340H

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

Required

Recommended

A340, A340E, A340F, A340H

Boost Valve Kit 97855-30K

Fits Type 1 (8931 casting code) with .546" dia. large spool.

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

Required

Recommended

A340E, A340F

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

Required

Recommended

A340E, A340F

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

Required

Recommended

A340E, A340F

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

Required

Recommended

A340E, A340F

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

Required

Recommended

A340E, A340F

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

Required

Recommended

A340E, A340H

Oversized Secondary Pressure Regulator Valve Kit 97741-17K

Type 1 (8930 casting code)

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

Required

Recommended

A245E, A246E, A340E, A340F, A650E

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

Required

Recommended

A340E, A340F

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

While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.