Engine Coolant pipe

I did that last winter using this:

Derale 98452 1/2" Male x 3/8" Female NPT Reducer Bushings

Amazon product ASIN B004XORAZMView: https://www.amazon.com/dp/B004XORAZM/ref=cm_sw_r_cp_api_glc_fabc_5-N2Fb6F69XBJ?_encoding=UTF8&psc=1


8309B27F-51ED-498A-A866-63D90FF1F527.webp