What material are these pipe plugs made from?

These pipe plugs are made from zinc-plated steel. This material offers good durability for sealing engine ports.

What does the '1/8-27 NPTF' designation mean?

This refers to the thread size and type. 1/8 is the nominal pipe size, 27 is the number of threads per inch, and NPTF stands for National Pipe Taper Fuel, indicating a tapered thread designed for sealing.

Are these plugs suitable for any engine?

These plugs are specifically noted as common in S&S applications. Always verify the thread size and type required for your specific engine before installation.

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Specifications

Brand: S&S Cycle
Part #: 50-1015
UPC: 50-1015

S&S Cycle 1/8-27 NPTF x .188in Pipe Plug - 10 Pack

Name: S&S Cycle 1/8-27 NPTF x .188in Pipe Plug - 10 Pack
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-1-8-27-nptf-x-188in-pipe-plug-10-pack-t14-664425
Price: 16.12 USD
Availability: BackOrder

$16.12

On Backorder — Expected to ship by May 7, 2026

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

S&S Cycle 1/8-27 NPTF x .188in Pipe Plug - 10 Pack. Zinc steel construction for S&S applications.

Key Features

Fits S&S applications.
1/8-27 NPTF thread size.
.188 inch thread depth.
Zinc-plated steel construction.
Comes in a 10-pack.

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About this part

Product Details

This is a 10-pack of S&S Cycle pipe plugs, specifically sized at 1/8-27 NPTF with a .188 inch thread depth. These are commonly used in various S&S engine applications to seal off ports or threaded openings.

Constructed from zinc-plated steel, these plugs offer solid durability for their intended use. They are designed to fit standard NPTF (National Pipe Taper Fuel) threads, making them a practical choice for sealing threaded holes in your engine components where a specific thread size is required.