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Drivetrain› Automatic Transmissions and Components

Sun Coast Converters

SUNCOAST Instant Reaction 28 w/ Pro Tree 5 Brake COA-11128

$3,275.00 $3,176.75 Save $98.25

SKU: S02K COA-11128

In Stock
In Stock
Ships by Jun 11
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Coan Racing COA‑11128A‑180 “Super Pro” 28″ Transmission is a race-hardened, bolt-in Powerglide built to excel in high-stress bracket and circle-track environments. Engineered around a durable steel hub and high-strength 300M alloy shaft (TH spline), this 28-inch transmission features an “Extreme Duty” planetary gearset, providing robust torque handling and sharp power transfer. Inside, eight clutches and a deep aluminum pan ensure stable line pressure and enhanced fluid cooling under extreme conditions.

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 COA-11128

Videos

Sonnax Powerglide Racing Transmission Rebuild - Get an Inside Look

Sonnax Powerglide Racing Transmission Rebuild - Get an Inside Look
Why the Powerglide Is the Cheapest and Most Reliable Racing Transmission

Why the Powerglide Is the Cheapest and Most Reliable Racing Transmission
Ep. 1 Powerglides 101: Input Shafts

Ep. 1 Powerglides 101: Input Shafts
DIY Powerglide Build in your Garage

DIY Powerglide Build in your Garage
Th400 vs. Powerglide!!! Which is better??

Th400 vs. Powerglide!!! Which is better??
Power Glide Trans Brake apply at different stage RPM reference

Power Glide Trans Brake apply at different stage RPM reference
Complete Powerglide Build

Complete Powerglide Build
Powerglide Band Adjustment, QUICK and Easy!

Powerglide Band Adjustment, QUICK and Easy!
Street/Race Powerglide Transmission: Assembly Part One

Street/Race Powerglide Transmission: Assembly Part One

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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