Need help you guys please.

Looking for a Hummer H2 rear lower control arm bolt, GM Part # 11561844
Discontinued in Canada and USA> No dealers in either country with stock.

This is a common wear-out item, so replacements MUST be available somewhere?
Does anyone know the dimensions and grade of this bolt?
Or where I can find a replacement?
Or a lead on someone who may still have one in their parts box?

The OEM version looks weird from the photo I found on the internet. It is partially threaded on both ends.
Guessing the photo is correct, but it is from some Russian website, so who knows.

 

Measure it!
There are 2 lengths in the rear control/lateral arms:

M14x2x112 Multi-Purpose Bolt - GM (11519053)

M14x2x90 Multi-Purpose Bolt - GM (11517901)

 

Thanks for the response. I did measure them.

But the M14 you quoted part numbers for an 2003-2005. Those are available, but no use to me.
They beefed up the bolts in 2006-2007.

My 2007 has the one I pictured above at M16x2.0x120mm hex flange bolt, Grade 10.9, GM part # 11561844.

I can use anything at least 100 mm. Longer is ok, I can cut it down to what I need. If I can not find OEM, then I will have to order something from eBay. Ugh.

 

31078R1 - INTERNATIONAL BOLT hx Flg M16 X 2 X 120 PHC CL 10.9 FL

 

@hummerz Thanks for that info! Much appreciate it.

I need to verify the thread pitch on this #31078R1, and can not find that info anywhere. Do you know the pitch? I see you listed it as 2.0, but the link to Wheeler does not show that measurement on their website.
I looked all over the internet for the pitch on this part, and its equivalent part #W300237. No luck on the pitch. I want to make sure these are not 1.5 fine pitch or something else.

Also now found shorter 100mm part #31077R1 aka W300236, as these may work just fine also. Neither of which show pitch.
And M16 flange nut #31085R1 aka W301277A, which also shows no pitch.

Also, this is a "PHC" bolt. Any idea what that means? Guessing "black phosphate"?

Google is not helping with these 2 questions.

I did find some other brands also on eBay, but maybe not as good. Your part number started the hunt, so thanks for that lead.

 

The link I posted above is a google search that shows many sites that offer the bolt, some show the pitch and some don't.
Best to make a call to verify. Btw, Michigan truck spring also shows part #M5398 as a replacement for 31078R1 & W300327.

 

Cool! Thanks @hummerz

That cross reference you found does confirm that the bolt should be a 2.0 pitch thread.