* Check the part numbers: Find the part number for the fuel pump in your 1997 Blazer and compare it to the part number of the fuel pump from the 2002 S10. If the numbers match, they are likely interchangeable. You can find these numbers on the pump itself, or through a parts website using the vehicle's VIN.
* Consult a parts store: Auto parts stores (like AutoZone, Advance Auto Parts, etc.) have databases that can tell you if the fuel pump is compatible with your Blazer. Give them the year, make, model, and engine size of both vehicles.
* Check fuel pump specifications: If you can find detailed specifications (flow rate, pressure, electrical connector type, etc.) for both pumps, comparing those details might give you a better indication of compatibility. However, even if the specs seem similar, physical differences could still cause problems with installation.
Don't assume compatibility based solely on the year and model. Always verify compatibility through one of the methods above before purchasing and installing the fuel pump. Using an incompatible pump could lead to vehicle damage.
