Outlander, I recently started the process of checking on where to find a heater for my 7234 Mitsubishi CC as well. I wrote to Wilson Tractors and I'm pasting his response.
-----Original Message-----
From: Sales Department [mailto:sales@wilsonstractors.com]
Sent: Tuesday, December 20, 2005 9:40 AM
Subject: Block Heater
David,
You got me thinking this morning when you mentioned the 3/4" pipe thread and for some reason (must have been a Monday morning thing) I was not thinking at all about that being a Mitsu. motor even though I have sold over 100 of those units!! For some reason I am so use to selling those 3/4" heaters for MF & Fords that I overlooked that fact.
Anyway I am sorry for that little blunder. The magnetic block heater is nice, but just to make sure that I had all my ducks in a row I contacted the main tech guy at Cub this morning and he told me about a block heater that is not in the parts book. It is the block heater made specifically for the mitsu. motor and goes into the right hand side freeze plug. Your cost on the plug will be $40.99 plus $8.95 S&H.
Again, sorry for all the confusion but I think we have our choices nailed down now. Just need to decide if you want to go with the magnetic type or the one from Cub. Thanks.
Nathan
That said. Putting the heater on my motor looks like it could be a real pain. Not much room to work and the freeze plug is right behind what looks like a fuel manifold or something. There is another freeze plug behind the front one on my motor but I don't know if there is room for the heater element inside the water jacket. I like the idea of the permanence of the freeze plug heater but may go with the magnetic heater route. It looks like Nathan at Wilson Tractors did the leg work to come up with a fair price on the heater though.
The magnetic mount he talked about was a 300watt heater, "Price on this unit is $55.12 plus $8.95
S&H."
Let us know what you do.