Brass Radiator Filler Necks

Crafted from high-quality brass, our radiator filler necks are perfect for any custom build. Choose from three sizes - small Japanese, standard, or large commercial - to fit your specific needs. These filler necks are a durable and stylish addition to your cooling system.

Constructed with high-quality brass, our radiator filler necks offer flexible installation options with the ability to be both soft soldered and silver soldered. Increase the lifespan of your radiator system and ensure a secure fit with these expertly crafted filler necks.