Fuel Pump: 403 Olds 77-79 (on RHS)Olds 403 fuel pump is different to all others. The pump with gasket for the 6. 6 ltr Oldsmobile 403 found in many 1977 79 Pontiac's. It is Located on the USA passenger side. You want a quality FUEL PUMP.. these are Normally GM AC Delco brand.. nothing we can get it more original or known higher quality. They cost about 20% more then some we find but know the reliability and stick with it in preference. ???? How to ID if you have a 403 Olds or Pontiac