Toyota/Lexus

A540E Transmission

A540E Tech Resources View all Transmissions
Remanufactured Valve Body
Toy155

A540E
Remanufactured Valve Body TOY155

with Lube Tube Feed Hole

Sonnax rebuilt valve body TOY155 is no longer in production. Please check with your distributor for availability. For service inquiries, please see details on Sonnax’s Limited Lifetime Warranty on remanufactured valve bodies.

Valve Body
89031 01k

Boost Valve Kit 89031-01K

High Ratio

    Helps cure:
  • Repeated clutch failure
  • Soft upshifts
  • Delayed Reverse
  • High line pressure in Reverse
89010 04k

Oversized Pressure Regulator Valve Kit 89010-04K

1998-2000 with A540Y valve body stamp & .629" long OE large spool

    Helps cure:
  • Clutch & band failures
  • Loss of lube oil
  • Low line pressure
  • High line pressure
  • Soft shifts
  • Harsh shifts
  • Low converter pressure
89010 03k

Oversized Pressure Regulator Valve Kit 89010-03K

Replaces .458" long OE large spool design no A540Y stamp on valve body

    Helps cure:
  • Clutch & band failures
  • Loss of lube oil
  • Low line pressure
  • High line pressure
  • Soft shifts
  • Harsh shifts
  • Low converter pressure