HPS Performance Products AN9321 1/16 NPT Allen Head Plug

The HPS Performance Products AN9321 is a precision-machined NPT pipe plug designed for sealing threaded ports in high-performance automotive and motorsport applications. Featuring an internal hex drive for easy installation and removal, this plug provides a clean, low-profile solution for capping unused ports in fuel systems, oil lines, coolant passages, and hydraulic circuits.

Key Features:

• Machined from forged 6061-T6 aluminum for exceptional strength-to-weight ratio
• Type II black anodized finish provides superior corrosion resistance and professional appearance
• 1/16 NPT thread size fits standard NPT bungs and fittings
• Internal hex socket allows for precise torque application and secure sealing
• Compatible with fuel, oil, coolant, alcohol, nitrous oxide, and hydraulic fluids
• Creates a tight, leak-free seal when properly installed with thread sealant

This lightweight aluminum plug is ideal for race cars, performance street vehicles, and custom fabrication projects where reliable port sealing is critical. The anodized finish resists chemical degradation and maintains its appearance in harsh under-hood environments.