Mattax said It's not. They looked like this View attachment 1715886275 Stock Fuel sender Identification 1967 p/n 2257 493 1973 p/n 3621 615 1967 View attachment 1715886276 vs ?? View attachment 1715886277 When you get it, do some testing and add your findings to one of the threads Fuel Sending Units and A-Body Fuel Tank Map Close as you will come to getting an OEM fuel sender.. Solved with a Meter Match Fuel Tank Sending Unit/Fuel Float Adjustmet Click to expand...