This is from Oemy's site:
25028274 In Tank Fuel Pump AC Delco/GM
25178125 In Tank Fuel Pump AC Delco/GM
SP6100M
In Tank Fuel Pump Spectra
P74758M In Tank Fuel Pump Carter
The above 3 numbers indicate this pump is for an 1998-1999 Chevrolet P30 Van or GMC P3500 Van
I don't know if they will work for you or not.