Engines and Components› Engines, Blocks and Components

Melling

Expansion Plug

$0.96

SKU: M00L MEP-333B

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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 Melling MEP-333B is a brass engine expansion plug designed for sealing casting core holes in engine blocks and heads. It features a disc plug design with a 18mm outside diameter and a depth of 0.130 inches. This plug is sold individually and is manufactured from quality brass material.

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

BrandMelling
Part NumberM00L MEP-333B

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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