2002 VY L67 Calais Sedan, 2012 VE L77 Calais Wagon
I purchase a New one off eBay [3 core to replace the OEM 2 core] and fitted perfectly.
The only thing I did notice, It takes a bit longer to get up to normal operating Temperature,
But that is fine, and during summer, it held the correct temperature, if anything, it ran a bit cooler.
Surprisingly a number of the eBay ones are proving themselves as very reliable and can be bought at a decent price. Shame the same can't be said for a large amount of the other Commodore parts that are listed on the site.