The 2007-2010 wranglers had the Multi cooler- p/n 55056635AA ...One Cooler
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The 2012-2013 wranglers still have the Multi cooler p/n 55056635AA (The EXACT Part...Not even a Supereded Part Number (AB.....AC....AD...etc) Which means No CHANGES at all.....
Plus-
The 2012-2013 Has The Aux Cooler p/n 68143895AA added to the Multi Cooler....Two Coolers......so the only Difference in 2010 model and 2012 model Wrangler, is the Added, (Extra Cooler) that was added to the Existing Cooler that has been in Wrangler JK since 2007 with no changes and still are.
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You are Comparing two Different Coolers in the pic that has the New Aux Cooler Added to the Standard Cooler That All Wranglers Have, All Wranglers, 2007 Get it Now??

2007-2010 wranglers had one cooler
2012-2013 wranglers have two coolers