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Engines and Components› Crankshafts and Components

Mazda OEM

Crankshaft Bolt

$26.35 $24.27 Save $2.08

SKU: B630-11-406C

In Stock
In Stock
Ships by Jul 29
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30 Days Return
INSTALL DIFFICULTY
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Easy — 1–2 hours

Description

The Mazda B630-11-406C is a crankshaft bolt for specific Mazda Miata models. It is a genuine OEM part designed for the 1990-1991 Miata with a short nose crank. This part replaces part number B63011406B.

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

BrandMazda OEM
Part NumberB630-11-406C
CategoryEngines and Components

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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