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Sonnax 77917-500 Throttle Valve Boost Valve Kit .500" Dia., O-Ring Style

by Sonnax
SKU S74507TK
Original price $12.24 - Original price $12.24
Original price
$12.24 - $12.24
Current price $12.24
in stock, ready to be shipped

Delivery time

You will receive your package in 2–5 business days within the contiguous U.S.

Brand: Sonnax

Other Part Number: S74507TK

Items Included: Performance Line Pressure Boost Valve Kit

Manufacturer Part Number: 77917-500

Material: Steel

Universal Fitment: Yes

Vintage Part: No

Performance Part: Yes

200-4R, 700R4, 4L60 Transmission

TV Boost Valve Kit
Part No. 77917-500

.500" Dia., O-Ring Style

A common problem in GM 200-4R and 4L60 transmissions is burned bands and/or 3-4 clutches. This failure can be reduced by eliminating throttle boost oil leakage. The Sonnax TV boost valve kits 77917-01K (.423" dia.), 77917-471 (.471" dia.) and 77917-500 (500" dia.) eliminate these problems for a variety of applications. For minimal line pressure in V8 applications, use Sonnax TV boost valve kit 77917-01K.

  • Throttle valve boost valve and sleeve are made from made from hardened steel for better wear resistance
  • O-Rings on sleeve separate throttle pressure and Reverse boost circuits, providing additional protection against cross-leaks
  • O-Rings prevent loss of oil between the outside diameter of the throttle valve sleeve and pump body
  • Valve
  • Sleeve
  • O-Rings (2)

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