Typical Perkins Fuel Injector Pump The older range of Perkins Engines typically use 2 types of pumps, both manufactured by CAV or Delphi. Delphi DPA Rotary Mechanical Diesel Fuel Injection Pump& Delphi DPC Rotary Mechanical Diesel Fuel Injection Pump& Delphi DPS Rotary Mechanical Diesel Fuel Injection Pump& Delphi DP210 Rotary Mechanical Diesel Fuel Injection Pump& Delphi DP200 Medium Duty Diesel Rotary Fuel Injection Pump& Delphi DP310 Rotary Mechanical Diesel Fuel Injection Pump& Delphi DPG Medium Duty Diesel Rotary Fuel Injection Pump& Delphi DPGE Medium Duty Diesel Rotary Fuel Injection Pump