Water Pump Gear Broken

The steel water pump drive gear on my YZ250F broke.

Has anyone else had this problem?

I had the same problem. I accidently broke that same gear while doing a Dr. D wet sump conversion. The teeth on two adjacent gears didn't line up and as I tightened the cover, the water pump gear broke. Ordered a new one....received a yz250 gear (won't work!), had to wait for the right 250f gear to arrive, easy to replace, no problems since. I think the new gear was about $35. What else can I help you with?


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