Aeroflow AF979-04 1/4" NPT Steel Port Plug Zinc Coated

Product Overview

The Aeroflow AF979-04 port plug is a 1/4" NPT tapered thread plug designed for securely sealing unused ports in performance and OEM applications. Constructed from durable steel with a zinc-coated finish, it provides reliable sealing and corrosion resistance.

Key Features

• 1/4" NPT (National Pipe Thread) tapered thread design
• Steel construction for strength and durability
• Zinc-coated finish for improved corrosion resistance
• Internal hex for easy installation and a clean appearance
• Ideal for sealing unused ports in intake manifolds, vacuum, coolant, or oil galleries

Application Notes

These NPT plugs seal via the tapered threads. A small amount of suitable thread sealant is recommended on all NPT threads. Tighten the plug until it seats firmly and sealing is achieved. Always confirm thread size and depth before installation.

Specifications

• Thread type: NPT (National Pipe Thread)
• Thread size: 1/4" NPT
• Material: Steel
• Finish: Zinc coated
• Hex type: Internal hex
• Part number: AF979-04
• Brand: Aeroflow

Fitment

This is a generic 1/4" NPT port plug suitable for systems using matching 1/4" NPT ports. Always check thread specification and application requirements before purchase and installation.