If you order a water pump from Checker Auto you'll get the wrong pump. I have a 90 Bronco 351 and the holes on the impeller cover are D shaped. The part from Checker has round holes. However...if you get the 348ci engine water pump (67 Mustang?), it's correct. Their computer part numbers are messed up. Luckily the lady behind the counter was an expert mechanic and knew which vehicle to look up to get the right part.