i would recommend that anyone changing should stick to the genuine part. we have a mason on ours and it was usually sitting at around 10 past midpoint on the gauge with occasional going nearly to the bottom of the H.
id never heard the fans come on, despite knowing they worked when disconnected in the engine bay. when it came to bleeding got bottom hose hot etc, bled it no probs then caned it to see if i could get the fans to come on. after a good 10 minutes reving away it just managed to kick the fans in then temp shot down. been for a good 30 mile run tonight to check things out and although i was up and down a few hills and speeding, the temp guage just wont go much past midway now. i real happy now that i think the cooling system is finally behaving itself after 4 yrs.

the old one got a lot more swollen when on the bongo under pressure





