This engine is popular in the Husqvarna YTH 23v48 Lawn Traction that I own. The oil drain port nut and spout leak and it is a frequently reviewed YouTube complaint. I viewed a great modification in a YouTube vid. I bought the parts from Briggs Parts Direct. The first part is the 796532 Connectior for the hose. This part is coated with a thick red sealant and would not thread in without a lot of torque. I quit the effort thinking it is the wrong thread or pipe diameter for the enging port. I need to locate the correct size connector for my engine model. Briggs parts customer service only operate off the parts diagram and do not have tech support to assist in diagnosing the correct thread/part I should use for this project. The two connectors appear to be the same size but I don't think so. Perhaps the read sealant is causing the tight fit? If you zoom in, he threads appear to be stripping. What is the right part?