Old Part Numbers: PS3030RVUnloader Valve used on many Furnas / Hubbell brand air compressor pressure switches includes the unloader valve with compression nut and sleeve, and screw. Replace this part if it leaks while the unit is running. If this part...

Old Part Numbers: SSF-3158-1This is the screw that holds down the piston cover, on the top of the piston.

Order this if ordering valve plate or a new head.

New style filter assembly with 3/8" threads. Includes new style air filter, head, and o-ring. Note: Do NOT order if your head has 2 holes on the SAME side of the head. This head has 3/8" FPT threaded ports on both sides. If your head has a 3/8" port...

Old Part Numbers: K0058, K-0058, K0650, K-0650 Sears 919.16014, 91604, K-0650Compression ring replacement kit includes the cylinder, piston ring, retaining screw, o-ring, and head o-ring. Restores compression. Note: Does not include connecting rod/piston...

O-ring for air compressor valve plate. Used with original style valve plate.SpecificationsO-ring measures 2.759"/2.719" ID