Billet CNC Weld-on Radiator Filler Neck

NZKW Australia Billet CNC Weld-On Radiator Filler Neck – T6061 Aluminium

The NZKW Australia Billet CNC Weld-On Radiator Filler Neck is designed for custom cooling system fabrication, providing a durable and professional solution for aluminium radiators, swirl pots, header tanks, and coolant expansion systems. Precision CNC-machined from T6061 aluminium, this weld-on filler neck offers exceptional strength, corrosion resistance, and a clean, high-quality finish.

Designed to suit standard 28mm radiator caps, it also includes a 1/8" NPT to 7.9mm barb fitting, making it ideal for overflow hose connections in high-performance street and motorsport cooling systems.

Available Sizes / Options

Fits standard 28mm radiator caps

Specifications

Material: T6061 Billet CNC Aluminium
Radiator Cap Size: Standard 28mm
Included Fitting: 1/8" NPT to 7.9mm Barb
Installation: Weld-on
Application: Custom cooling systems and radiator fabrication

Key Features

• Precision CNC-machined from premium T6061 aluminium

• Weld-on design for custom radiator and cooling system fabrication

• Compatible with standard 28mm radiator caps

• Includes 1/8" NPT to 7.9mm barb fitting for overflow hose connection

• Lightweight, durable, and corrosion resistant

• Suitable for aluminium radiators, swirl pots, and header tanks

• Provides a professional and secure cooling system solution

• Ideal for performance and motorsport applications

Compatible With / Applications

• Aluminium radiators

• Custom cooling systems

• Radiator fabrication projects

• Swirl pots

• Header tanks

• Coolant expansion tanks

• Performance street vehicles

• Drift, drag, circuit, and off-road vehicles

• Motorsport and competition applications

Built for Performance & Reliability

The NZKW Australia Billet CNC Weld-On Radiator Filler Neck is engineered for high-performance cooling systems where durability and reliability are essential. Manufactured from premium T6061 aluminium, it delivers excellent strength, precise fitment, and long-lasting performance while providing a professional finish for custom cooling system builds.

Why Choose NZKW Australia?

🇦🇺 Australian owned and operated
🏁 Years of proven motorsport development and real-world track testing
✅ Trusted by performance workshops, race teams, and enthusiasts
Precision-engineered, premium-quality components built for reliability
🚚 Fast Australia-wide shipping
Designed for street, drift, drag, circuit, and off-road applications
Backed by expert product knowledge and local support