The Delphi HP10025 or ACdelco #19111394 is for the 22, 25 and 34 gallon tanks.
The Delphi HP10022 is for the 31 gallon tank.
Note: I believe the later models (1996 and up) used quick connects for the fuel lines where the earlier models like my 1995 used bolt on fuel lines.
I think I figured it out studying the tanks on rock auto, the HP10025 is listed for the 22 gallon tank which the dimensions say is a 14" height, similar to the 25 and 34 gallon tanks height at 14.13" and 14.25".
I don't think it would work for the 31 gallon tank which dimensions are listed at...
Hello, having trouble finding information on what fuel pump to buy for my 1995 K3500 7.4L, I believe it's the 34 gallon tank. Trying to stay with OEM.
Looking at this OEM Delphi hp10025: https://www.napaonline.com/en/p/DFPHP10025
This delphi one lists cab and chassis w/ 22 gallon tank.
"Left...