Drivetrain› Automatic Transmissions and Components

Sun Coast Converters

Suncoast Converters TH350 / TH400 8 Treemaster MRT Race Torque Converter - (-3.5 Stroke) 408700

$2,537.52

SKU: S02K 408700

In Stock
In Stock
Ships by Jun 14
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Non-Returnable Item
INSTALL DIFFICULTY
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Advanced — 4+ hours

Description

The Sun Coast Converters 408700 is an 8" Treemaster MRT Race Torque Converter designed for GM TH350 and TH400 transmissions with a -3.5" stroke. This high-performance torque converter is specifically built for drag racing applications, offering no compromises with its sprag-equipped design. Unlike many other manufacturers, ATI (Sun Coast Converters' partner for this product) utilizes all new components, ensuring optimal efficiency and total durability. Each Treemaster® racing torque converter is custom configured for the exact application to efficiently transfer power to the ground, making it an ideal complement to an ATI drag race transmission.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandSun Coast Converters
Part NumberS02K 408700

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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