This pump is installed on carburetor model air cooled VW engines with an alternator installed instead of a generator.
Tech Note:
For correct functionality of your Air Cooled VW Fuel Pump, be sure to use / order the correct length Fuel Pump Push Rod.
If your Air Cooled VW uses a generator, you will need the “Long Type” Fuel Pump Push Rod - 108mm or 4-1/4” in length
If your Air Cooled VW uses an alternator, you will need the “Short Type” Fuel Pump Push Rod - 100mm or 3.94” in length