ICT Billet 5/8 to 3/4 Inch Hose Barb Splice Coupler Reducer Repair Fitting Adapter Connector Radiator Coolant Intercooler Heat Exchanger Fluid Designed & Manufactured in USA Bare Aluminum AN627-11A

Used it to bypass a 98 F-150 heater core. Hoping the aluminum will hold up better than the plastic one it replaced.

As described and works perfect!

5/8” x 3/4” adapter. Good quality, fast shipping.

The reducer arrived on time, well packaged, and as advertised. Quality materials and construction. No issue.

Worked perfect for my heater hose havent ran the engine much yet but looks like a quality fitting

Item delivered quickly. Item exactly as described.

Put this in a Camaro to unite two different size heater hoses because my heater core was leaking and this way was able to bypass heater core and connect the 5/8 inch hose from the radiator to the 3/4 inch hose going to the engine..

High quality and good price

I used to purchase to plastic couplers from auto parts store but they fail every 3-4 years sending plastic chunks and bits into my water pump and cooling system, this is much better material and will probably outlive the Jeep and me.

AS expected