Yes it is.
Vauxhall list it as the same. The one I brought from Vauxhall had a bit down the side for power steering fluid to circulate so I took it back and he told me that 80% of cav rads are now listed as the same part no.
my car started life as a 1.8 8v,(i think).
it still has the original radiator fitted ,only now its got a bad leek.
good chance to fit a 16v one i thought,allowing more cold air into engine bay,being shorter.
would it be a straight swap?. if not what would i need to do.
and yes i would like a list of reasons why a 2l 8v is different,cheers.
the 16v astra doesnt have a low xmember (look at the bottom front of your car, its the bar running along the bottom) the 8v rad clips down onto this
the 16v car has the xmember half way up an i think the rad sits on that, but i cant remember
you could bolt a 16v rad in and get a flexi top hose from halfords, but you cant put an 8v in a 16v bay
i run an 8v rad (cos i have an 8v astra ) and its spot on cooling wise
if you want the engine to run cooler use a turbo (with aircon) thermostat which is 10 degrees lower
I have just had this on my 88 GTE 16v. The current 16v radiator you can get from Vauxhall's didn't fit on mine. I had to get an 8v one which was £50 instead of £160 for the 16v one. There was absolutely no way the 16v one was going to fit. It is a genuine valver as well.