DavidG Posted August 2, 2005 Posted August 2, 2005 Does anyone one know of a website that has a breakdown of the model #'s for onan engines, or shows Hp ratings and years made for a specific model # ? I need to id a couple of twins that came out of sears suburbans. Thanks Dave
eagle5473 Posted August 3, 2005 Posted August 3, 2005 ussually the first 3-4 numbers in the serial number will tell you the month and year of manufature 773 571 ect 7/73 5/71
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