Drivetrain› Automatic Transmissions and Components

Sun Coast Converters

ALLISON EXTENSION HOUSING GASKET

$40.00

SKU: S02K A1-EXT-HG

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Sun Coast Converters A1-EXT-HG is an extension housing gasket designed for Allison transmissions. This gasket provides a secure, leak-free seal to ensure long-term transmission performance. It is manufactured by SunCoast Converters, a company known for identifying and correcting failure points in OEM transmissions.

Fitment

Fitment Guaranteed

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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 A1-EXT-HG

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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