Help with proper Mobil 1 oil filter. M1-201A vs M1-209A for GM Vortec 350 V8

[Chris B.]

Hey guys! So I'm at Walmart getting some of the new Mobil 1 oil filters. Mobil's website says I need a M1-209A for my 1997 GMC Sierra 5.7 V8. They dont have any shelf space labeled for the M1-209A but they do have the M1-209A. The M1-209A looks to be the exact size this engine takes. I use old stock WIX Napa Gold 1036 and everything looks the same except the base plate holes, The Napa Gold has MUCH bigger holes but 2 less of them. Can anyone confirm if Mobil's site is wrong and if the the M1-209A is right filter? Any input on these is appreciated! Thank you!

 

[ZeeOSix]

Mobil's filter look-up doesn't even show a 1997 GMC Sierra. Which one of these in the pull down would be the same engine?