Dim A (1): 17" Diameter Dim B (2): 0.625" Pilot Hole Dim C (3): 1.750" Ctr On Mounting Holes OEM Numbers Are Provided for Reference Only. Please Verify Fit Prior To Ordering. Please Note: Some Listings Use Stock Images for Reference and May Differ from the Actual Product. One New Aftermarket Replacement 7-Blade Fan Fits Ford Tractor Models: 5200 (6/1973>), 5600 (L/ Ac 8/1976>), 5610 (W/ Or L/ Ac W/ Tropical Cooling 1/1981 -10/1988), 5700 (L/ Ac 8/1976>), 6600 (L/ Ac 8/1976>), 6610 (L/ Ac & Tropical Cooling 1/1981 -10/1988), 6700 (L/ Ac 8/1976>), 7000 (6/1973>), 7600 (L/ Ac 8/1976>), 7700 (L/ Ac 8/1976>), 7710 (L/ Ac & Tropical Cooling 1/1981 -10/1988). Dim A One: 17" Diameter Dim B (2): 0.625" Pilot Hole Dim C (3): 1.750" Ctr On Mounting Holes Replaces Part Number: 87010708