Notes: 
The pistons in this rebuild kit have a notch cut in the underside on the pin boss. This notch faces towards the front of the engine during assembly. 
Wheel Tractors:  
5000 Series Models (From 4/1968)
5500, 5550 Series Models (From 6/1968)
6600, 6700 Series Models (1973-9/1980)
5610 Series Models (From 1981)
											 
				
				
		
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