• Outside diameter (of a new impeller): 1-1/4"
• Width: 1/2"
• Inside diameter: 5/16"
• Quantity of Blades: 6

This pump was used on the engine listed below(and the boat that we are aware used this engine):
• 1GM10CD-SD20 (Catalina 250)

When you order a special order item it sets off a chain of events like Willie Wonka in the chocolate factory. Once you turn the valve the chocolate is coming down the pipe. If you then decide you want caramel, the chocolate is still going to come out of the pipe. We can't put the Chocolate back in the pipe, so someone is going to have to eat it, and it's not going to be us! Your order can't be canceled, returned, or magically changed into caramel, so please order carefully the first time!

We off this part for your convenience though you may find them elsewhere less expensive due to the manufacturer's restricted distribution.