Drivetrain Automatic Transmissions and Components

Sun Coast Converters

Suncoast E4OD CAT 3 450 HP TRANSMISSION WITH CONVERTER 1989-1991 2WD SC-E4OD-CAT3-8991-2WD $1450 Core Charge Applies

$9,675.00

SKU: S02K SC-E4OD-CAT4-8991-4WD

In Stock
In Stock
Ships by Jun 20
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The SunCoast Category 4 E4OD transmission is a high-performance unit rated for 550 HP. It features a comprehensive upgrade package including a bushing kit, TransGo Tugger Kit, new solenoid pack, and a heavy-duty 45-element intermediate sprag (53% stronger than factory). Key internal components are enhanced with billet materials: a 300 maraging input shaft, a billet forward clutch drum (made from 4140 heat-treated stress-relieved billet steel to prevent spline and snap ring failures), a billet intermediate shaft (300m billet steel), and a dual-load center support for improved load distribution and bearing longevity. The transmission utilizes Alto Red Eagle clutches with Kolene steels, known for high friction coefficients and heat resistance. The included SunCoast Category 1 Billet Triple-Disc Torque Converter features a billet stator and carries a 3-year, unlimited-mileage warranty. The TransGo HD2 Tugger Kit in the valve body allows for adjustable shift firmness, improved exhaust braking, and enhanced cooling. A carbon fiber intermediate band is also included for superior heat resistance. This specific model is identified as SC-E4OD-CAT4-8991-2WD and fits 1989-1991 Ford F250 and F350 2WD vehicles.

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 SC-E4OD-CAT4-8991-4WD

Videos

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