Drivetrain› Automatic Transmissions and Components

Sun Coast Converters

Suncoast Converters TV Boost Valve Kit - .471 Bore Dia. Factory Style Sleeve 77917-03K

$42.32

SKU: S02K 77917-03K

In Stock
In Stock
Ships by Jun 19
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sun Coast Converters TV Boost Valve Kit is a transmission component designed to prevent oil loss and improve line rise in GM 200-4R and 4L60 transmissions. This kit includes a valve and sleeve manufactured from hardened steel for increased wear resistance. It is engineered to address common issues such as soft shifts, burned 3-4 clutches, and reduced band life, which are often caused by MTV boost loss and insufficient line rise.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSun Coast Converters
Part NumberS02K 77917-03K

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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