Replacement ballast question!

[vince172]

hi all, my ballast is busted and i need a new one!
typed in part number (5dv 008 290-00) into ebay and found what looks like the same unit.
will these fit???, i know the large number is the same but the longer, smaller number is different-is this just a serial number??

thanks in advance!!

 

[vince172]

it fitted, just to let all you searchers know!