Or at least do a partial disassembly/inspection. Here's the OEM water pump I bought from the dealer last time. 140k miles on it, had been leaking for awhile with no signs elsewhere.
The thermostat housing groove is perfect for an o-ring, 2-034, stays put in the groove with a little goop.
The "bitch clip" on the a/c compressor screws are phillips, a bit difficult to remove to get the connector out of the way to remove the fan bracket. Even harder to re-install. Replace it with a hex socket head screw with a little grease on the tip of a ball driver. M5-0.8 or a 10-32 works in a pinch.
The thermostat housing groove is perfect for an o-ring, 2-034, stays put in the groove with a little goop.
The "bitch clip" on the a/c compressor screws are phillips, a bit difficult to remove to get the connector out of the way to remove the fan bracket. Even harder to re-install. Replace it with a hex socket head screw with a little grease on the tip of a ball driver. M5-0.8 or a 10-32 works in a pinch.