water pump replacement

I just went thought the same thing. Mine was leaking so I took it apart to find out why. In the process I broke a wire off the pressure switch so I defiantly needed a new switch. Could not find just the switch, would have to buy the upper housing with switch. Since I did not find a good reason for the leak I didn’t trust putting is back together without it still leaking. So I thought I would replace the whole Pumphead Assembly. I called Shurflo for a part number since I could not find my model number anywhere on the internet. Shurflo suggested I replace the whole pump with the new modern model. The 4008-101-E65 has a higher pressure with a slightly lower flow and lower current draw. It also does not cycle so there is no need for an accumulator tank. The reason it does not cycle is because it has an internal bypass valve, so, no matter how low or high you have your faucet on, you get a constant steady flow. It's also supposed to be quieter. And the best part is it was only $10 more than the part for the old pump. $60 on Amazon, free shipping. Ordered it yesterday and it is going to arrive tomorrow.