Serial number look up

Those numbers look like a Briggs & Stratton style format, where 677328 would be the model/type family and 582UL part of the code or build spec, typically pointing to a small industrial automotive bearings or lawn/garden engine rather than automotive; exact displacement and application depend on the full model-type-code string stamped on the blower housing or valve cover area, but engines in that range are usually horizontal or vertical shaft utility motors used on mowers, generators, or equipment, and parts like gaskets, carb kits, and TBS bearings are still widely available through small-engine suppliers once the complete code is confirmed.