Description
NPT port plugs are essential for sealing unused ports on engine blocks, cylinder heads, and fluid systems—preventing fluid leakage and contamination. Allstar’s brass plugs deliver reliable performance in high-temperature and high-pressure environments, making them ideal for racing engines and custom builds. This 4-pack ensures you have spares on hand for multiple applications or future projects.
- Thread Size: 1/8 NPT
- Material: Brass
- Head Style: Hex
- Finish: Natural
- Quantity: 4 plugs
- Type: Solid plug fitting
- Temperature Rated: High-temp capable
- Universal Fitment: All 1/8 NPT ports






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