If your engine is not currently an Onan, then none of this will apply to you. The engine in this tractor is mounted with the shaft out the right side instead of out the front like most larger tractors. You may have to cut part of the firewall on the left side to get a Linamar engine to fit in here. Some of these tractors were also made with a Briggs Opposed twin 422437-0750 engine which is no longer available.
