Old Part Numbers: A19714, D27022Check Valve, 1/2" male NPT x 1/4" hose barb. If your compressor constantly leaks after it shuts off, this is probabably the problem. If this one-way check valve is clogged or defective, air will backfeed from your tank, so...

Replace if misreading or broken.

Screw that fastens the front and back of the belt  guard to each other, and to the compressor base. THD FORMING

Old Part Numbers: A17717, z-A07456, Z-A07456Replace if misreading or broken.