new old stock, minor surface rusting you get what is pictured
170-1792 CCK OIL BASE ONAN CAST IRON NEW OLD STOCK casting number on unit is 170 1792 bolt pattern on the top of base is 5-3/4" long way and 5-3/8" short way on centers.

Base mounts are  12.25" on centers, just on 1 side.

Please look at my EBAY STORE and other auctions and put me on YOUR FAVORITES. Please send part numbers when inquiring about certain parts. Thank you. Mike Your browser does not support JavaScript.To view this page, enable JavaScript if it is disabled or upgrade your browser