Drivetrain Automatic Transmissions and Components

Sun Coast Converters

Suncoast Converters TCC Apply Valve Kit - PWM Units Only 77805E-K

$54.63

SKU: S02K 77805E-K

In Stock
In Stock
Ships by Jun 14
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sun Coast Converters TCC Apply Valve Kit is a direct-fit replacement for PWM units. Vehicles with GM 4L60-E, 4L65-E, and 4L70-E transmissions often experience converter overheat lockup complaints, including no lockup or immediate lockup after 2nd gear when the fluid warms up. This is frequently caused by valve bore wear, leading to issues like fluid blown out the fill tube and code 894 or 1870.

The updated stroke pressure and exhaust control work to prevent TCC drift on apply, and the included spring allows it to work in both early- and late-style PWM pumps. Contents include the valve, seal, and spring.

Fitment

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Specifications

BrandSun Coast Converters
Part NumberS02K 77805E-K

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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