Old Part Numbers: K31Gasket in between the crankcase and the cylinder. If the compressor pump doesn't seem to pressurize as quickly as it should or is leaking in between the head, valve plate, cylinder or crankcase while running, there's a good chance...

If your unit overpressurizes or your throttle goes from idle to hi-speed intermittently, replace this.

Replace if frayed or slipping.

Old Part Numbers: 5130171-00

Old Part Numbers: 5130199-00, 5130326-00, A12463, 5130546-00, 5130326-00SV, 5130199-01, 5130253-00, 5130346-00, 5133712-00, A12464

Old Part Numbers: 5130210-00, 5130310-00