In 2008 they had one part number that combined the controller circuitry with the pump and valves, and it had an MSRP of $800. Later they came up with separate units for each function with their own part numbers, so if one component was bad you only had to replace that one, not both. If you dealt with a good shop that did the proper diagnosis and only replaced the part that was bad, the bill would be less versus those places that just replaced both parts. In 2014 they came out with the linked ABS system, and the ABS unit is entirely different. To answer the OP's question, the 2014 unit isn't a valid replacement for your 2008. As best I can tell the 2008 part number is obsolete, so you would need to go with the parts listed for the 2009-2013 models.
2008 Model: 40688-08 KIT, ABS UNIT MSRP $800.00
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2009 – 2013 Models: 48343-09 MODULATOR ASSEMBLY HYDRAULIC, ABS UNIT MSRP $372.71
40649-08 CONTROLLER ELECTRONIC, ABS UNIT MSRP $481.73
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2014– 2016 Models: 41100013A ABS MODULE (EHCU) MSRP $713.73
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2017 Model: 41100061 ABS MODULE ELECTRO HYDRAULIC CONTROL UNIT (EHCU) MSRP ??
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Jerry