Drivetrain Automatic Transmissions and Components

Sun Coast Converters

Suncoast Converters Lightweight Billet Steel Ultimate Super Drum Assembly w/ Super Sprag 5 Clutch Intermediate COA-22816B

$2,696.46

SKU: S02K COA-22816B

In Stock
In Stock
Ships by Jun 17
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sun Coast Converters COA-22816B is a Lightweight Billet Steel "Ultimate Super Drum" Assembly with Super Sprag and a 5-Clutch Intermediate, designed for high-performance Turbo Hydramatic 400 (TH400) transmissions. It's machined from billet steel, offering improved shift responsiveness, rotational efficiency, and enhanced torque handling and clutch durability. The assembly includes Coan's internal components COA-22230 and COA-22818A. This is a direct-fit solution that drops into stock transmission cases without modifications.

Fitment

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Specifications

BrandSun Coast Converters
Part NumberS02K COA-22816B

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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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