Dorman 911-022 Fuel Level Sensor for Specific Models, Natural Fits select: 2001-2005 BUICK LESABRE, 2004 CADILLAC PROFESSIONAL CHASSIS

I used it to replace original sensor on 2004 Buick LeSabre. Access to fuel pump / sensor is through access hatch in trunk. I had to trim a little plastic off of the tank because old assemble swelled up or hole was cut a little small - but trimming does not effect the seal. The Dorman sensor looks far superior to original - the contacts are thick circular pads instead of just thin fingers like original sensor which wear out.