NPT stands for National Pipe Thread. It's a standard tapered thread used for pipes and fittings, designed to create a seal when tightened.

What are these plugs typically used for on an engine?

These plugs are commonly used to seal off unused threaded ports in the engine block, cylinder heads, or oil pan. They can also be used for custom oil or coolant line setups.

Do these plugs require sealant?

While NPT threads are designed to seal on their own, it's often recommended to use pipe thread sealant or Teflon tape for an extra secure seal, especially in high-pressure applications.

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Trusted Since 1957

Est. 1957

Specifications

Brand: Moroso
Part #: 39153
UPC: 84663391538

Moroso Chrome Plated Pipe Plugs - 1/2in NPT Thread - 2 Pack

Name: Moroso Chrome Plated Pipe Plugs - 1/2in NPT Thread - 2 Pack
Brand: Moroso
SKU: moroso-moroso-chrome-plated-pipe-plugs-1-2in-npt-thread-2-pack-t14-405402
Price: 19.99 USD
Availability: BackOrder

$19.99

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Moroso 1/2in NPT chrome plated pipe plugs (2 pack). Ideal for sealing engine ports.

Key Features

Fits 1/2 inch NPT threaded ports.
Chrome plated finish for corrosion resistance and appearance.
Sold as a 2-pack.
Moroso brand reliability for engine components.

No-fit, no charge. Wrong part? Send it back, free return label.

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About this part

Product Details

When you're working on your engine and need to seal off a port, these Moroso pipe plugs are a solid choice. They use a standard 1/2 inch NPT thread, which is common for many oil galleys, coolant passages, or other threaded openings on engine blocks and heads. Having a couple of these on hand is always a good idea for any engine build or repair.

These plugs are chrome plated, which not only gives them a nice shine but also helps protect them from corrosion. They're well-made by Moroso, a company known for its performance engine parts. The 1/2 inch NPT thread means they'll screw in securely to any matching female threads, creating a tight seal to keep fluids or air where they belong.