Standard short-reach mild steel radiator filler neck supplied with a zinc-coated 1.6 bar pressure cap, suitable for custom and replacement cooling system applications. This mild steel radiator filler neck and cap set is designed for reliable sealing on pressurised cooling systems. The filler neck is suitable for welding to a radiator or header tank, making it ideal for repairs, restorations, and custom builds. Enjoy a smooth checkout process. Please ensure the pressure rating and reach are correct for your application before ordering. We are at your side both before and after the purchase with words and deeds. Contact us using the eBay contact form and we will respond as soon as possible. 30 Day Returns. Items must be returned unused.