The Hybrid Racing Radiator Hose Insert is designed to be used to insert both the fan switch and temperature sensor into the cooling system on a K swapped vehicle. The hose insert is threaded so that both OEM sensors from your stock engine can be installed onto your K series engine. Without the Insert you would need to drill and tap your engine or radiator for installation. This insert also allows your cluster temperature gauge and fan to function properly. For the temperature sensors to function properly they need to have a good ground signal and the Hybrid Racing Radiator Hose Insert features a threaded grounding post so that a ground line can be run from it to the chassis to ensure proper grounding.
Our Radiator Hose Inserts are machined from 6061 billet aluminum, given a T6 heat treatment, and hard anodized in black for long lasting durability on the street and on the track.
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