Aluminum AN3-AN20 ORB Socket Hex O-Ring Boss Plug, Black

Main Description

Engineered for extreme performance, this Aluminum AN3-AN20 ORB Socket Hex O-Ring Boss Plug in a stealthy black finish is the clean, professional solution for sealing unused AN ports in any engine bay. Crafted from premium 6061 T6 billet aluminium and hardcoat anodised, these plugs maintain strength, resist corrosion, and keep your setup looking sharp under demanding conditions. The design supports AN sizes from AN3 through AN20 with an ORB socket hex drive and a precisely seated O-ring boss seal, delivering a reliable, leak-free block for ports you don’t need in the moment.

Whether you’re building a race-ready engine, tuning a performance import, or tidying up an off-road setup, this plug helps you prevent leaks, contamination, and coolant/oil migration while preserving a professional, stock-like appearance. Full-flow fittings ensure compatibility with the rest of your plumbing, and the black anodised finish adds a low-profile aesthetic that blends into any engine compartment. All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

At intercyprus.com since 2002 — trusted for quality and reliability.

Benefits & Tips

• Quickly seal unused AN ports on engines, radiators, and oil lines to prevent leaks and dirt ingress while maintaining a clean engine bay appearance.
• Designed for multi-size versatility—works with AN3 through AN20 ports, simplifying parts inventories and future upgrades.
• Install with care: ensure the O-ring seats properly against the boss and verify the port threads match your AN fittings to maintain a reliable seal under pressure.

Product Specifications

• Product type: Aluminum AN3-AN20 ORB Socket Hex O-Ring Boss Plug
• Material: 6061 T6 billet aluminium (hardcoat anodised)
• Finish: Black anodised
• Color: Black
• Fits: AN3, AN4, AN6, AN8, AN10, AN12, AN16, AN20 ORB socket hex boss ports
• Model Name: JT14BK
• Origin: Mainland China
• Certification: ISO9000
• Application: Engine compartment
• Weight: 80 g (approx.)
• OEM No.: /
• Displacement/Year/Additional specs: Not specified

Package includes:

• 1 x Aluminum AN3-AN20 ORB Socket Hex O-Ring Boss Plug – Black

Warnings/Reminders

• Designed for use with AN3 through AN20 ORB ports; verify compatibility with your system before installation.
• Ensure the O-ring is intact and seats properly against the boss to prevent leaks; replace if damaged.
• Use compatible sealing methods appropriate for AN fittings and follow torque guidelines for your application.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Providing quality and trusted service since 2002 at intercyprus.com.