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Drivetrain› Differentials and Rear-End Components

BF Gears

Transmission Gear Set

$5,300.00 $4,600.00 Save $700.00

SKU: K SERIES 1-4 DOG BOX

In Stock
In Stock
Ships by Jul 29
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30 Days Return
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Description

The BF Gears K SERIES 1-4 DOG BOX is a racing transmission gear set designed for performance applications. This dog box features straight-cut gears and replaceable dog rings for durability. It utilizes factory forks and includes a heavy-duty input shaft without a step-down, offering extra spline length for triple-disc clutches.

Fitment

Fitment Guaranteed

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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

BrandBF Gears
Part NumberK SERIES 1-4 DOG BOX
CategoryDrivetrain

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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