Old Part Numbers: PS846234VM, MP513901AJ, MP513901SJAir Compressor Check Valve Kit Unloader Line Kit includes unloader tube, compression nuts and sleeves, and 1/4" compression adapter. Check valve is NOT included in kit. You may need this if converting...

Oil Sight Glass so you can keep an eye on the pump's oil level. Note: Order this item for models 4B246C and for pumps that have a threaded oil breather!

Old Part Numbers: PU015900AG, PU015900AJ, PU015900AVCast-iron replacement air compressor flywheel, 10" O.D. x 3/4" I.D. Includes the set screw and key.Specifications 3/16" keyway 1/2" 4L, "A"-section vee groove

Plastite screw, 5/8" long. Screw for the plastic shroud, belt guard, etc. Note: Also used on models WL650103, WL651900, WL650703, WL651004, WL651000AJ.Specifications5/8" long

Old Part Numbers: VT-4, VT252901AJ, VT273200AJOrder this kit for older VT pumps using this style gasket kit includes head, valve plate assembly, gaskets, head bolts, and air filter kit.Note 1: The New style pump head has only one air line coming off of...

Old Part Numbers: CW210000AV, EV1WSI Condor unloader valve for MDR21130 and other popular pressure switches. Replace this valve if air constantly leaks from the valve while the unit is running, or if you don't hear a burst of air from the valve as...

Old Part Numbers: PM004904AVKey for Flywheel, 3/16" x 1" length. Replace this if missing to keep your flywheel securely on the pump shaft.

Felt Air Filter Element for pump. Replacing your air filter element when it is dirty will increase the efficiency of the pump and increase the life of the air compressor