Drivetrain› Automatic Transmissions and Components

Sun Coast Converters

Suncoast Converters TH400 Billet Aluminum Direct High Drum 223900A

$1,075.00

SKU: S02K 223900A

In Stock
In Stock
Ships by Jun 9
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

This TH400 Billet Aluminum Direct Drum is manufactured specifically for drag racing. It is shown with a billet piston (Part# 2239-2) and includes 3 Sure Seal sealing rings. It features a steel sleeve for the sealing ring and utilizes a 34-element high-performance sprag. The drum material is billet aluminum 7075 T6 and weighs 3.39 lbs, which is 55% less than the OEM drum. It can hold up to 6 frictions when paired with a TCS billet apply piston and has 1/4″ locking dowels to eliminate inner race movement.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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 223900A

Videos

Race TH400: Drums

Race TH400: Drums
Turbo 400 Tips

Turbo 400 Tips
Install: B&M Vacuum Modulator for GM TH350 & TH400 Automatic Transmissions 20234

Install: B&M Vacuum Modulator for GM TH350 & TH400 Automatic Transmissions 20234

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.

View Full Return Policy