Drivetrain› Automatic Transmissions and Components

Sun Coast Converters

Suncoast Converters TV Boost Valve Kit - .500 Bore Dia. Factory-Style Sleeve 77917-04K

$38.58

SKU: S02K 77917-04K

In Stock
In Stock
Ships by Jun 18
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sonnax 77917-04K is a TV boost valve kit featuring a .500" diameter and a factory-style sleeve. This kit is designed to eliminate throttle boost oil leakage, which can reduce the incidence of burned bands and 3-4 clutches in GM 200-4R and 4L60 transmissions. The valve and sleeve are made from hardened steel for improved wear resistance.

Fitment

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Specifications

BrandSun Coast Converters
Part NumberS02K 77917-04K

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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