Must order quantity of 4 for complete set. 1/4"-20 x 1-1/4 length.

Plastic plug for the piston pin (two used per piston).

Old Part Numbers: 68-4-21/8" male NPT x 1/4" compression adapter for air compressor unloader/bleeder line. A very common adapter to attach the 1/4" OD unloader/bleeder line from the unloader valve on the pilot valve to the pump head.

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...

Pin for the piston. One used per piston.

Washer for the flywheel bolt.