Here is what I just found but its NOT for a CJ :(

OK guys time to order :)
http://www.autotrucktoys.com/jeep/Mo...-PRD20931.aspx

Write up:
http://www.jeepforum.com/forum/f9/en...install-928591

Post 12 will give you a idea/picture.

http://www.jeepforum.com/forum/f96/a...stalled-933951

http://www.fordtractorpart.com/tract...s-270-ctg.html


Battery and Pad Heaters:
http://www.padheaters.com/battery_heater.html

http://www.jcwhitney.com/blanket-sty...23&zmap=541427



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Mudrat sent me this:

Sorry don't have a source for block heaters. JC Whitney is showing a couple oil pan heaters though ...
http://www.jcwhitney.com/oil-pan-hea...lterid=c1648j1
http://www.jcwhitney.com/magnet-moun...lterid=c1648j1

And Titan offers some size/capacity options:
http://www.padheaters.com