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Sonnax Boost Valve Kit 34200-01K

Product Description For Sonnax Parts
Product Part No: -- 34200-01K
Transmissions: -- 4L80E 4L85E
Package and Weight
Package Quantity: -- 1 ea
Sonnax:High Performance Part - Boost Valve Kit
Base Price:
Product Description
Part Information:
O-ring style
  • Hardened steel boost valve has over 20% wider spools to provide better durability and increased sealing contact area:
  • Boost valve spools have annular grooves to reduce side loading that causes wear:
  • Quality steel boost sleeve with external o-rings provides positive seal to compensate for pump cover bore wear:
  • Kit includes a replacement aluminum balance oil plug with an o-ring to ensure proper sealing and adequate back pressure on the pressure regulator valve:
  • Kit includes instructions to retrofit parts dating back to 1989:
Part Contents
  1. Valve:
  2. Sleeve:
  3. Sleeve O-Rings (2):
  4. Balance Plug:
  5. Balance Plug O-Ring:
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