Block Heater for Cat 12 Grader D318

Don't know on that style. Went block drain to thermostat block with a tank style on ours. Works very well.

Tap into the two bolt flange on the water pump/thermostat housing and connect other end to block drain.

[quote="KansasD7"]I would like to add a block heater to my electric start D318. The coolant temperature sensor thermocouple sensor block plug would be a perfect place to put a block sensor, but I hate to give up the coolant temperature gauge, even in the winter.

Not a big fan of those heaters that go inline with a radiator hose, especially for a big engine like this, but I know that is another option.

Kat's makes 1/2" NPT and 3/4" NPT screw-in heaters that I use on other equipment if I can find a place to install.

Am I missing an obvious place to put a screw in block heater? Anyone ever share the port that the coolant temp sensor uses by installing a tee and installing both the temp sensor and the block heater? Kind of kludgy, but might work.

Thanks, Do not put a t where your temp sensor is. Your temp will not read correctly.
Steve[/quote]

Do not put a tee where your temp sender is. Temp gauge will not read correctly.

Tap into the two bolt flange on the water pump/thermostat housing and connect other end to block drain.

Sounds good. Found the two bolt flange on the water pump, but can you help identify the location of the "block drain".

Thanks,
Steve

Left hand side of the block, just past/slightly below the governor housing. It is a gasketed machine thread plug, not pipe thread.

Mine was already pipe threads.

Hi, KansasD7.
You could also move to a warmer climate. I live in shorts and T-shirt year round here. LOL. That 2-bolt flange to block drain arrangement sounds like a good one to me. I also suspect that the lower down you can locate the heater, the better it will work. But what would I know? They're pretty much unheard of around here.

Just my 0.02.