I want to buy the fuel pump and I ask In advance about the difference between

With Module Code Sgk

or

w/ Module Code TCH

the seller had no idea about the difference..

I guess is something related if the blazer is 2 or 4 door .. but I am not sure...,

Thanks in Advance..

 

In this case, yes, the SGK broadcast code is for the 2dr and the TCH is for the 4dr. On a 2000, there was no change over in pump assemblies through the model year. Other years may have different broadcast codes (part numbers) depending on when/where the vehicle was produced.

I would recommend either the Delphi (FG0052 - 4dr or FG0072 - 2dr) or the AC Delco (MU1733 - 4dr or MU1063 - 2dr).

I have never seen this option, but there is another pump for the RPO K53 equiped (Robust Fuel System) vehicles so check your RPO label in the glove box for K53.