200-4R,4L60

TV Boost Valve Kit
Part No.77917-04K

.500" Dia., Factory-Style Sleeve

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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. Sonnax drop-in TV boost valve kits77917-02K(.423" dia.),77917 - 03 - k(.471" dia.) and 77917-04K (.500" dia.) eliminate these problems in a variety of applications. For maximum pressure and shift feel for high performance applications, use Sonnax TV boost valve kit 77917-04K.

  • Throttle valve boost valve and sleeve are manufactured from hardened steel for better wear resistance
  • Kits available in three sizes for .423", .471" and .500" diameters for a variety of applications
  • Drop-in Zip Valve™ parts install quickly and easily
Sonnax Part No. Sleeve Dia. Performance Applications
77917-02K .423" dia. Minimum line pressure for V6 applications and smaller vehicles
77917 - 03 - k .471" dia. Higher line pressure for towing and off-road
77917-04K .500" dia. Maximum line pressure and shift feel for high performance applications
Learn More About Zip Valve™ Drop-In Repairs
  • Valve
  • Sleeve

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.看到所有Sonnax阀体布局.

GM 200-4R Valve Body Layout

GM 200-4R Valve Body Layout
  • 200-4R, 4L60 TV Boost Valve Kit 77917-04K
  • 200-4R, 4L60 TV Boost Valve Kit 77917-04K