32mm (1-1/4") ID Weld On Radiator Filler Neck with Cap, Billet Aluminum Radiator Weld-In Neck Kit, Universal Fit for Car Truck Coolant System Upgrades

["Premium Material: Manufactured from CNC-machined 6061-T6 Billet Aluminum, ensuring excellent weldability, durability, and a sleek look.","Precision Fit: Features a 32mm (1-1/4\") Inner Diameter (ID), standard for many performance and automotive cooling applications.","Complete Kit: Includes a heavy-duty radiator pressure cap to ensure the system remains sealed and pressurized under high temperatures.","Integrated Overflow: Equipped with a barbed overflow port to easily connect to a coolant recovery tank or expansion bottle.","Universal Application: Ideal for custom-built radiators in cars, trucks, drift cars, and off-road vehicles."]