At last I found LED park globes for Cougars which are H6W. Now my lowbeams, foggies and parkers are in same colour. (White)
Here is the link for it.
http://cgi.ebay.com.au/ws/eBayISAPI....ht_2612wt_1139
They fit perfectly in Cougars headlight assembly. As you know LEDs last ages. No more hassles of changing globes.