TV Boost Valve Kit - .471" Bore Dia., Factory Style Sleeve
77917-03K
4L60, 200-4R
Pricing:
$23.25
Description
.471" Bore Dia., Factory Style Sleeve
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 TV boost valve kits 77917-02K (.423" dia.), 77917-03K (.471" dia.) and 77917-04K (.500" dia.) eliminate these problems in a variety of applications. For V8 applications and higher line pressure for towing and off-road, use Sonnax TV boost valve kit 77917-03K.
- 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 |
| 77917-03K | .471" dia. | Higher line pressure for towing and off-road |
| 77917-04K | .500" dia. | Maximum line pressure and shift feel for high performance applications |
- Valve
- Sleeve
Symptoms:
- Soft slide shifts
- 3-4 Clutch burned
- Reduced band life
Cause:
MTV boost loss and insufficient line rise.Correction:
Sonnax drop-in TV boost valve kit prevents oil loss between the outside diameter of the TV sleeve and the pump body.Details
Shipping Information
- Item Requires Shipping
- 2.0 lbs.
- W4.0000” x H4.0000” x L4.0000”
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