Symptoms:

  • Delayed engagement
  • Flare shifts
  • Forward slip
  • Burnt clutches

Cause:

Cast aluminum accumulator bore wear allows apply oil to exhaust.

Correction:

Sonnax anodized aluminum accumulator piston kit incorporates an O-ring for positive sealing and annular grooves for better centering and wear prevention.

A750E, A750F, A760E, A760F, A760H, A761E, A960E, A960F, AB60E, AB60F, U140E, U140F, U151E, U151F, U240E, U241E, U250E

Accumulator Piston Kit
Part No. 57917E-19K

View Instructions Find a Distributor

Wear at the multiple accumulator bores on these various units is very common. This wear allows component apply oil to exhaust, resulting in delayed engagements, slipping or flare shifts and burned clutches. Drop-in-place Sonnax accumulator piston kit 57917E-19K incorporates an O-ring for positive sealing, even in worn bores.

  • No machining or special tools required
  • O-Ring provides positive seal even in worn bores
  • O-Ringed piston fits multiple locations
  • Piston
  • 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 A750E/F Valve Body Layout

Toyota/Lexus A750E/F Valve Body Layout

Toyota/Lexus U151E/F, U250E Valve Body Layout

Toyota/Lexus U151E/F, U250E Valve Body Layout

Toyota U140E/F, U240E, U241E Valve Body Layout

Toyota U140E/F, U240E, U241E Valve Body Layout

Toyota A760E/F/H Series Valve Body Layout

Toyota A760E/F/H Series Valve Body Layout
  • A750E, A750F, A760E, A760F, A760H, A761E, A960E, A960F, AB60E, AB60F, U140E, U140F, U151E, U151F, U240E, U241E, U250E Accumulator Piston Kit 57917E-19K
  • A750E, A750F, A760E, A760F, A760H, A761E, A960E, A960F, AB60E, AB60F, U140E, U140F, U151E, U151F, U240E, U241E, U250E Accumulator Piston Kit 57917E-19K
  • A750E, A750F, A760E, A760F, A760H, A761E, A960E, A960F, AB60E, AB60F, U140E, U140F, U151E, U151F, U240E, U241E, U250E Accumulator Piston Kit 57917E-19K
  • A750E, A750F, A760E, A760F, A760H, A761E, A960E, A960F, AB60E, AB60F, U140E, U140F, U151E, U151F, U240E, U241E, U250E Accumulator Piston Kit 57917E-19K