So looks like the GP high pressure water pump took a crap on my 870. Started making a hammering noise and the pressure was all over the place. I thought it was air in the lines until i checked the oil. Lots of metal chunks in there. 5000 hours on the pump and today it decided to die.
So @anon. Just want to double check. What is the correct pum I should order.

So @anon. Just want to double check. What is the correct pum I should order.
