Engine Block Heater question

[HummerHippy]

Hi Experts and Expertettes -
I wanted to order an engine block heater for my H3, but was told that I needed to order it from the factory, i.e. order a new truck with that option. That it couldn't be added at the dealers. Can anyone tell me why? Is it embedded in the engine or something?
Thanks

[cestwick]

Originally Posted by HummerHippy

Hi Experts and Expertettes -
I wanted to order an engine block heater for my H3, but was told that I needed to order it from the factory, i.e. order a new truck with that option. That it couldn't be added at the dealers. Can anyone tell me why? Is it embedded in the engine or something?
Thanks

you can get them from dealer...all you do is remove a plug on left side of motor and screw in heater...by the way it is a 17mm allen bolt style hole.

[HummerHippy]

I just found a little note that says 3.7L engine in 2007 H3 has "New cartridge-type engine block heater, which fits neatly into a specially machined block orifice; for use with available engine block heater."

http://www.gm.com/company/gmability/...ec_062006.html

Are you thinking of that? Can a 3.5L engine's heater be added after delivery?

[cestwick]

Originally Posted by HummerHippy

I just found a little note that says 3.7L engine in 2007 H3 has "New cartridge-type engine block heater, which fits neatly into a specially machined block orifice; for use with available engine block heater."

http://www.gm.com/company/gmability/...ec_062006.html

Are you thinking of that? Can a 3.5L engine's heater be added after delivery?

I have never looked at or delt with an 07...3.7. I was talking about 3.5, which I have done. about 3/4 up the left(drivers) side of the block is a hole with a plug in it. All you do is unscrew plug(you will loose antifreeze) and screw in block heater. You can access this through left wheelhouse.

part # for heater is 12586687 retail $21.23
part # for the cord 15134398 retail $35.58

[HummerHippy]

Aha! Really? Cool. Thx for the part #s. I shall visit my friend neignborhood dealer to see what their computer says about these. Remember, he said they couldn't order a block heater.

[HummerHippy]

OK, dealer can get parts. part they can't say if they can do the job 'cuz computer doesn't definitively show where it gerts installed. And the parts are not seen on a specific Accessories Page on their system, so they think (as mentioned earlier) that it has to be order with a truck.

They wondered, if the heater goes right into the block or into some other part (possibly water pump?) If it goes into the block, then they said the standard H3 engine should be able to have the heater installed. If it is in some other part, then perhaps a non heater truck doesn't have the correect part to accept the heater. (paraphrasing their thoughts).

So, does the heater go right into the engine block? Anyone have one installed after they took delivery?

Thanks.