Will it fit? EdgeStar PL430 Fridge/Freezer

I need some help. I bought my husband the above-mentioned (43QT) as a surprise and now I don't know whether it will fit in his truck! Here are the dimensions:

Exterior Unit Dimensions:
Height: 20.8 ”
Width: 24.7 ”
Depth: 17.7 ”

Interior Unit Dimensions:
Large Basket Space:
Length: 11""
Width: 11 7/16 ” (measured from hinge side to front)
Height: 14 15/16 " (measured from bottom to top)
Small Basket Space:
Length: 7 "
Width: 11 7/16 "
Height: 7 1/16 " (measured from step to top)
Interior Unit Dimensions: Large Basket Space:
Length: 11""
Width: 11 7/16 ” (measured from hinge side to front)
Height: 14 15/16 " (measured from bottom to top)
Small Basket Space:
Length: 7 "
Width: 11 7/16 "
Height: 7 1/16 " (measured from step to top)

I heard about this brand from a driver who mentioned it as a more economical version of an Engel. It was delivered today and it seems huge!! My husband is a company driver that just returned to the road after 2+ years of not driving. His company started him in an '03 Freightliner Columbia. Did I just screw up? It seems like such a good unit.

Here is the link: EdgeStar FP430 Portable Fridge Freezer 43 Quart ​