Connecting Rod Compatible with Ford Tractor 2120. Replaces Casting #’s HP730-17. Displacement: 2.216 Liter, 1.662 Litter. Compression Ratio: 22:1, 22.5:1, 23.3:1. Pin Bushing Inside Diameter: 1.102. Crank End Inside Diameter: 2.166. Length, Center to Center: 6.496. Specializing in parts for engines, hydraulics, driveline and electrical since 1995.