Timing Belt pulley mystery????

[eggsalads]

hello, gotta problem, ordered a new timing belt pulley and the one that came is smaller diameter than the one i took off, cant figure out which ones the right one, this engine may have had timing issues and the previous owner did some dumb stuff so its possible its the wrong one. any ideas? much appreciated
94 geo tracker with 8v. have engine code if needed

no car stated, fully,  doors? 2door or 4, , 4wd or 2wd and what transmission, (this  I do not need but tells me also if it is really 8v)
8v and 16valve belts are not the same, at all.
your engine has black steel top is 8v
if your engine is silver looking aluminum top that screams 16 valves it is.
easy that. G16, 
the vin code is code U for engine not code 6 for 16valves. (GEO GM codes that)

I like gates belts, same as fitted to new toyota cars. 
8v is here.


 solved the errors at rockauto and gates.
 
ok the navigates  page at GATES is now brain dead,  wow.  they lost the 8v belt listing there. wow.!!!!
t164  (is listed as 60A00 belt)
t212  71C00 ( this is what you bought)

ok what are the real Suzuki belt numbers (GM I can not do) but here they are SUZ.
12761-60a00 ( 8v)
12761-71C00 (16v) wrong for your  engine.
 
so when buying a belt make  sure your belt shows, compliant with 60A00 (00 can be higher for newer versions)

the gates ecat is no good now, only the legacy printed or PDF catalog page 1832 on there web site covers this old engine, (banned in 1996 it was USA) 8v was banned. EPA.


t212 = 16v
t164 = 8v

oddly many stores do  not sell both,  and up to 1995 , both engines were made , 8v is mostly 2door car , USA> 16v is 4doors.
some call the 16v the California engine, due to CALIF, C.A.R.B. banning the 8v first.

Hello sir, thanks for responding. it is 2 door manual 4x4. It is definitely 8V. The vin code does NOT match the engine. It was swapped at some point. 

However! I have the Gates T164 from Rock Auto already waiting in my garage, the issue is with the belt pulley which I also ordered on Rock Auto, it is the only one available IF you search using "1994" TRACKER. This pulley appears to be WRONG. It is metal and smaller diameter than the original. But if you search using "1992" TRACKER, the only pulley which comes up matches the original I have (rubber around out side edge). 

My question is, how do  I know this one is the right one! I distrust the engine work the previous owner did!