This Polaris 5131777 HUB,R.WHEEL,LG.FLANGE(MACH) is used in the following models and assemblies:
1998 SCRAMBER 500 (W98BC50A) - Rear Wheel
1998 SCRAMBLER 400 (W98BC38C) - Rear Wheel Scrambler 400
1999 MAGNUM 500 (A99CD50AA) - Rear Wheel Drive
1999 TRAIL BLAZER 250 (A99BA25CA) - Rear Wheel
2000 325 MAGNUM 2X4 HDS (A00CB32FA) - Rear Wheel Drive - A00cb32aa
2000 325 MAGNUM 4X4 HDS (A00CD32FA) - Rear Wheel Drive - A00cd32aa
2000 325 MAGNUM 4X4 HDS II (A00CD32FB) - Rear Wheel Drive - A00cd32aa
2000 500 MAGNUM 4X4, HDS (A00CD50FA) - Rear Wheel Drive - A00cd50aa
2000 500 MAGNUM 4X4, HDS II (A00CD50FB) - Rear Wheel Drive - A00cd50aa
2000 INT'L BIG BOSS (A00CL50DA) - Rear & Middle Wheel - A00cl50aa
2000 MAGNUM 325 2X4 (A00CB32AA) - Rear Wheel Drive
2000 MAGNUM 325 2X4 (A00CB32CA) - Rear Wheel Drive - A00cb32aa
2000 MAGNUM 325 4X4 (A00CD32AA) - Rear Wheel Drive
2000 MAGNUM 325 4X4 (A00CD32CA) - Rear Wheel Drive - A00cd32aa
2000 MAGNUM 500 (A00CD50AA) - Rear Wheel Drive
2000 MAGNUM 500 EB (A00CD50AB) - Rear Wheel Drive - A00cd50aa
2000 SPORTSMAN 6X6 (A00CL50AA) - Rear & Middle Wheel
2000 TRAIL BLAZER (A00BA25CA) - Rear Wheel
2000 TRAIL BOSS (A00AA32AA) - Rear Wheel
2000 TRAIL BOSS (A00AA32AB) - Rear Wheel
2000 TRAIL BOSS (A00AA32CA) - Rear Wheel - A00aa32aa
2000 XPEDITION 325 (A00CK32AA) - Rear Wheel Drive
2000 XPEDITION 325 (A00CK32AB) - Rear Wheel Drive - A00ck32aa
2000 XPEDITION 425 (A00CK42AA) - Rear Wheel Drive
2000 XPEDITION 425 (A00CK42AB) - Rear Wheel Drive - A00ck42aa
2001 325 MAGNUM 2X4 HDS (A01CB32FC) - Rear Wheel Drive - A01cb32aa
2001 325 MAGNUM 4X4 HDS (A01CD32FB) - Rear Wheel Drive - A01cd32aa
2001 500 MAGNUM 500 HDS (A01CD50FB) - Rear Wheel Drive - A01cd50aa
2001 INT'L BIG BOSS 6X6 (A01CL50DA) - Rear & Middle Wheel - A01cl50aa
2001 MAGNUM 325 2X4 (A01CB32AA) - Rear Wheel Drive
2001 MAGNUM 325 2X4 (A01CB32AB) - Rear Wheel Drive - A01cb32aa
2001 MAGNUM 325 4X4 (A01CD32AA) - Rear Wheel Drive
2001 MAGNUM 325 4X4 MOSE (A01CD32AB) - Rear Wheel Drive - A01cd32aa
2001 MAGNUM 500 (A01CD50AA) - Rear Wheel Drive
2001 SPORTSMAN 6X6 (A01CL50AA) - Rear & Middle Wheel
2001 TRAIL BLAZER (A01BA25CA) - Rear Wheel
2001 TRAIL BLAZER (A01BA25CB) - Rear Wheel - A01ba25ca
2001 TRAIL BOSS (A01AA32AA) - Rear Wheel
2001 TRAIL BOSS (A01AA32AB) - Rear Wheel - A01aa32aa
2001 TRAIL BOSS 325 SE (A01AA32AC) - Rear Wheel - A01aa32aa
2001 XPEDITION 325 (A01CK32AA) - Rear Wheel Drive
2001 XPEDITION 425 (A01CK42AA) - Rear Wheel Drive
2001 XPEDITION 425 (A01CK42AB) - Rear Wheel Drive - A01ck42aa
2001 XPEDITION 425 (A01CK42CA) - Rear Wheel Drive - A01ck42aa
2002 INT'L BIG BOSS 6X6 (A02CL50DA) - Rear & Middle Wheel - A02cl50aa/Da
2002 LUH 6X6 PPS (C02CL50AB) - Rear & Middle Wheel
2002 SPORTSMAN 6X6 (A02CL50AA) - Rear & Middle Wheel /Da
2002 TRAIL BLAZER (A02BA25CA/CD) - Rear Wheel - A02ba25ca/Cb/Cd
2002 TRAIL BLAZER FREEDOM (A02BA25CB) - Rear Wheel - A02ba25ca/Cb/Cd
2002 TRAIL BOSS (A02CA32AA/AB) - Rear Wheel
2002 XPLORER 4X4 (A02CG25CA) - Wheel (Rear)
2003 SPORTSMAN 6X6 (A03CL50AA) - Rear & Middle Wheel
2003 TRAIL BLAZER 250 (A03BA25CA/CB) - Rear Wheel
2003 TRAIL BOSS 330 (A03CA32AA) - Rear Wheel
2004 A04BA25CA TRAIL BLAZER (A04BA25CA/CB) - Rear Wheel
2004 A04CA32AA TRAIL BOSS 330 (A04CA32AA/AB/FA) - Rear Wheel
2004 SPORTSMAN 6X6 (A04CL50AA) - Rear & Middle Wheel
2005 SCRAMBLER 500 4X4 (A05BG50AA) - Rear Wheel /Fa
2005 SPORTSMAN 6X6 (A05CL50AA) - Rear & Middle Wheel
2005 TRAIL BLAZER (A05BA25CA) - Rear Wheel /Cb
2005 TRAIL BOSS 330 (A05CA32AA) - Rear Wheel /Ab/Ac/Fa
2005 TRAIL BOSS 330 QUADRICYCLE (A05CA32EA) - Wheel, Rear
2006 SCRAMBLER 500 4X4 (A06BG50AA) - Wheel, Rear /Fa
2006 SPORTSMAN 6X6 (A06CL50AA) - Wheel, Rear & Middle
2006 TRAIL BLAZER (A06BA25CA) - Wheel, Rear
2006 TRAIL BOSS 330 (A06CA32AA) - Wheel, Rear /Ab
2007 SCRAMBLER 500 2X4 INTL (A07BA50FA) - Wheel, Rear
2007 SCRAMBLER 500 4X4 (A07BG50AA/FA) - Wheel, Rear
2007 SPORTSMAN 6X6 (A07CL50AA) - Wheel, Rear & Middle
2007 TRAIL BOSS 330 (A07CA32AA) - Wheel, Rear
2008 SCRAMBLER 2X4 INTL (A08BA50FA) - Wheels, Rear
2008 SCRAMBLER 500 4X4 (A08BG50AA) - Wheel, Rear
2008 SCRAMBLER 500 4X4 INTL (A08BG50FA) - Wheel, Rear
2008 SPORTSMAN 6X6 (A08CL50AA) - Wheels, Rear & Middle
2008 TRAIL BLAZER 330 (A08BA32AA) - Wheels, Rear
2008 TRAIL BOSS 330 (A08CA32AA) - Wheels, Rear
2009 SCRAMBLER 2X4 INTL (A09BA50FA) - Wheels, Rear
2009 SCRAMBLER 500 4X4 (A09BG50AA) - Wheel, Rear
2009 SCRAMBLER 500 4X4 INTL (A09BG50FA) - Wheel, Rear
2009 TRAIL BLAZER 330 (A09BA32AA) - Wheels, Rear
2009 TRAIL BOSS 330 (A09CA32AA) - Wheels, Rear
2010 SCRAMBLER 500 4X4 (A10NG50AA) - Wheels, Rear
2010 SCRAMBLER 500 4X4 INTL (A10NG50FA) - Wheels, Rear
2010 TRAIL BLAZER 330 (A10NA32AA) - Wheels, Rear
2010 TRAIL BLAZER 330 INTL (A10NA32FA) - Wheels, Rear
2010 TRAIL BOSS 330 (A10EA32AA) - Wheels, Rear
2010 TRAIL BOSS 330 INTL (A10EA32FA) - Wheels, Rear
2011 SCRAMBLER 500 4X4 (A11NG50AA) - Wheels, Rear
2011 SCRAMBLER 500 4X4 INTL (A11NG50FA) - Wheels, Rear
2011 TRAIL BLAZER 330 (A11NA32AA) - Wheels, Rear
2011 TRAIL BLAZER 330 INTL (A11NA32FA) - Wheels, Rear
2011 TRAIL BOSS 330 (A11EA32AA) - Wheels, Rear
2011 TRAIL BOSS 330 INTL (A11EA32FA) - Wheels, Rear
2012 SCRAMBLER 500 4X4 (A12NG50AA) - Wheels, Rear
2012 SCRAMBLER 500 4X4 INTL (A12NG50FA) - Wheels, Rear
2012 TRAIL BLAZER 330 (A12NA32AA) - Wheels, Rear
2012 TRAIL BLAZER 330 INTL (A12NA32FA) - Wheels, Rear
2012 TRAIL BOSS 330 (A12EA32AA) - Wheels, Rear
2012 TRAIL BOSS 330 INTL (A12EA32FA) - Wheels, Rear
2013 TRAIL BLAZER 330 (A13NA32AA) - Wheels, Rear
2013 TRAIL BLAZER 330 INTL (A13NA32FA) - Wheels, Rear
2013 TRAIL BOSS 330 (A13EA32AA) - Wheels, Rear
2013 TRAIL BOSS 330 INTL (A13EA32FA) - Wheels, Rear
SERIES 10 PTV 6X6 (C10CL50AA) - Rear & Middle Wheel
What makes you believe the hubs you got are stock? This took me less than 3 minutes to find. You can do the same for the rims or anything on your machine. If the hubs will fit then I would give them a try. Could be that the replacement axle had aftermarket or swapped hubs already. When you compare the different models within the two years in question it looks like they may have put the wider spread hubs on the 4x4 or vise versa. But the axle is the same right? Or it wouldn't have fit. I do not mean to sound curt here, it's that with buying your machine or any ATV I believe it's vital that you learn and teach yourself as much about your machine as you can if you intend to ride into the back country. You can machine anything to work, but what happens when you have to fix the part next to it?
I didn't check any of the numbers set in parenthesis so if you paste them into Google with the word Polaris you'll get lots to look at for comparison. Hope this helps to get you started. happy trails.