D dhull Forum Newbie Apr 10, 2018 #1 I need to replace a B&S 445677 0421 E1 engine. I have located a 4457770231 E1 engine. Would these engines be interchangeable?
I need to replace a B&S 445677 0421 E1 engine. I have located a 4457770231 E1 engine. Would these engines be interchangeable?
T Tinkerer200 Well-Known Member Apr 10, 2018 #2 You need to check the crankshaft diameter. Those came in 1 inch and 1-1/8 inch. You may have to do some alternator/wiring switches but parts are highly interchangeable. Walt Conner
You need to check the crankshaft diameter. Those came in 1 inch and 1-1/8 inch. You may have to do some alternator/wiring switches but parts are highly interchangeable. Walt Conner
