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Drivetrain› Automatic Transmissions and Components

Sun Coast Converters

Suncoast GM CATEGORY 4 4L80E REBUILD KIT WITH CONVERTER SUNSC-4L80E-CAT4-A

$5,495.00 $5,330.15 Save $164.85

SKU: S02K SC-4L80E-CAT4-A

In Stock
In Stock
Ships by Jun 13
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

The SunCoast Alto 4L80/85E Category 4 Rebuild Kit (SC-4L80E-CAT4-A) is a high-performance, comprehensive transmission overhaul solution for GM 4L80E and 4L85E automatic transmissions. Engineered for high-horsepower and heavy-towing applications, this kit significantly enhances durability, performance, and torque capacity.

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-4L80E-CAT4-A

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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