The s.t.a.l.k.e.r_call_of_pripyat_mod_500kg_by_f4e.zip file you have requested: Call of Pripyat / Mods / Max Weight : 500kg - 365.75kb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R.: Call of Pripyat and upload any files you want to share or are missing. This is the only information we could locate:
This mod increase the max weight to 500kg, and allows you to walk with a 800kg weight.