Hitch & Linkage Diagram

Three point hitch and linkage parts are used in the attachment of three-point hitch implements to the rear of agricultural wheeled tractors. COmponents are available for most Category 0, 1, 2, and 3 hitches. Tractor hitches are classified by the drawbar horsepower of the the tractor as shown in the table below.

Hitch Category	Maximum Drawbar Horsepower	Top Link Pin Diameter	Lift Arm Pin Diameter
Category 0	Up to 20 Horsepower	5/8"	5/8"
Category 1	20 Horsepower to 45 Horsepower	3/4"	7/8"
Category 2	40 Horsepower to 100 Horsepower	1"	1-1/8"
Category 3	80 Horsepower to 225 Horsepower	1-1/4"	1-7/16"