On TractorData.com, find the detailed specifications for the Allis Chalmers 4W-220 tractor. Specifically, I need to know its engine's fuel type, number of cylinders, displacement in cubic inches, and rated RPM. Additionally, please provide its wheelbase and shipping weight.
Navigate to TractorData.com. Locate and click on the 'Allis Chalmers' brand link. From the list of Allis-Chalmers tractors, find and click on the '4W-220' model link. On the Allis Chalmers 4W-220 page, click on the 'Engine' link. Identify and extract the fuel type, number of cylinders, displacement (in cubic inches), and rated RPM from the engine specifications. Navigate back to the Allis Chalmers 4W-220 overview page, or directly to the 'Dimensions' section. Identify and extract the wheelbase and shipping weight from the dimensions. State all identified details clearly.
Successfully navigate to the Allis Chalmers 4W-220 tractor page. Identify the fuel type as 'diesel'. Identify the number of cylinders as '6-cylinder'. Identify the displacement as '426 ci'. Identify the rated RPM as '2400'. Identify the wheelbase as '126 inches'. Identify the shipping weight as '21475 lbs'. State all requested pieces of information accurately.