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Tiger Transmissions

4r100 Sonnax Performance pack HP-4R100-01 S36741EDK



Sonnax Performance Pack HP-4R100-01 offers innovative, heavy-duty calibration for firmer shifts under load without sacrificing low-speed drivability. Precision components upgrade the 4R100 for maximum performance and durability by recalibrating pressures and shift accumulation. Durable, improved parts target commonly worn areas in the transmission to repair damage and prevent future wear and tear.

  • Recalibrated shift accumulation, with tunability for great HD shifts
  • Improved accumulator valves for greater clutch durability
  • Improved pump components to minimize leaks and maintain pressure, TCC performance and lube
  • Sure Lock overdrive retaining ring prevents loss of 4th
  • Includes internal parts for setup and to prevent common failures
  • 1-2, 2-3 & 3-4 Accumulator Control Valve Kits
  • Heavy Duty Low/Reverse Modulator Sleeve Kit
  • Line Pressure Booster Kit
  • Line-to-Lube Pressure Regulator Valve
  • TCC Control Plunger Valve Kit
  • Front Lube/Drainback Valve Kit
  • Line Pressure Modulator Plunger Valve Kit
  • One-Piece Rear Case Bushing
  • Center Support Gasket
  • Intermediate & Direct Clutch Feed Seal Kit
  • High Radius Relief Valve
  • Rear Planet Endplay Shims (2)
  • Performance Rated Accumulator Springs Green Springs (2), Yellow Springs (2), Red Springs (3), Non-Painted Springs (3)
  • Sure Lock Overdrive Spiral Snap Ring