Huanix OD 1.5\" / 2\" / 2.5\" / 3" Aluminum Weld On Filler Neck & Cap Oil Fuel Surge Tank Water Tank Radiator & Coolant Reservoir Caps~8283 Mechanical Fuel Pump

Application: For custom tanks, splash bowls, bottles, etc. fuel tank/fuel surge tank, water tank, radiator, coolant, cooler. For use with fuel systems for any other purpose. Specifications . Aluminum screw-on filler neck for attaching to a hose. It can also be welded to the tank. The cap has a knurled outer edge for grip when unscrewing and comes with a sealing ring. 6061 aluminum billets and caps are perfect for almost any project. Including rear differential housing filler caps, valve cover filler caps, surge tank filler caps, coolant overflow traps; and just about anything else you can think of. They are non-vented and come in 3 different sizes. See related products in our store. Part Type: Coolant Reservoir Caps. Type: * Screw Cap * Includes O-ring Cap Material: 6061-T6 Aluminum Alloy Cap Finish: Black/Silver same as picture. Size: 1.5-38mm (1.5"), Neck ID - 25.0mm, Length with Cap - 32mm 2-49mm (2.0"), Neck ID - 35.8mm, Length with Cap - 32mm 2.5-60.5mm (2.5"), Neck ID - 45.0mm, Length with Cap - 35mm 3-78.8mm (3"), Neck ID - 61mm, Length with Cap - 35mm Note: Please check the size in the picture, and the size is 1.5", 2", 2.5", 3" reservoir hole size. Professional installer is highly recommended (no instructions). We are the manufacturer,