Engines and Components› Engines, Blocks and Components

LEWMAR

SEAL 30X52X7 TYPE A SHAFT SEAL

$53.59

SKU: L03I B8157

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

Easy — 1–2 hours

Description

The Lewmar B8157 is a shaft seal designed for bow thruster propeller shafts. It is identified as a Type A shaft seal with dimensions of 30x52x7. The part number for this seal is B8157, also listed as LB8157.

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

BrandLEWMAR
Part NumberL03I B8157

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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