Air compressor crankcase breather.  Note: Part includes the plastic section of the breather only. If the metal adapter is needed as well, then please contact our sales department at 757-547-8665. 

Old Part Numbers: 5140121-67

Overhaul kit for the DeWalt / Porter Cable v-twin air compressor pump includes piston rings (x 2), valve plate assemblies (x 2), air filter elements, gaskets, and oil seal. If you have a sudden loss of performance, if air leaks out of the intake filter,...

Poor performance or air leaks out of the intake filter while the unit is running? The valve plate assembly is probably the problem.

Complete gasket kit for your air compressor pump; includes head gaskets, cylinder gaskets, crankcase gaskets, bearing cover gaskets, and oil seal. If the compressor pump doesn't seem to pressurize as quickly as it should or is leaking in between the...