4R100, E4OD

Performance Rated Accumulator Spring Kit
Part No. 36948-18K


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Ford E4OD and 4R100 accumulator springs can break, weaken or collapse, causing long, soft shifts, particularly in towing and heavy-duty applications. Recalibrate shift feel with Sonnax performance rated accumulator spring kit 36948-18K.

  • Best in heavy-duty and towing applications
  • Gives quicker and firmer 1-2, 2-3 and 3-4 shifts
  • Recalibrates shift feel

For best results, use in conjunction with Sonnax line pressure modulator valve 96948-01K for heavy-duty/high performance applications.

  • Retaining Clips (3)
  • Green Springs (2) Large
  • Yellow Spring Large
  • Red Springs (3) Medium
  • Unpainted Springs (3) Small

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.

Ford E4OD, 4R100 Valve Body Layout

Ford E4OD, 4R100 Valve Body Layout
  • 4R100, E4OD Performance Rated Accumulator Spring Kit 36948-18K
  • 4R100, E4OD Performance Rated Accumulator Spring Kit 36948-18K
  • 4R100, E4OD Performance Rated Accumulator Spring Kit 36948-18K details