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Spark plug
Can anyone tell me the part number for the spark plug on a Onan Microquiet 4000 generator? I have a 2012, 27’.
Dale from Downey 27’ 2012 RB,”Casa Verde”, 2000 Jeep Wrangler. Formerly1991 RB & 1990 Jeep Wrangler.

Re: Spark plug
Reply #1
Can anyone tell me the part number for the spark plug on a Onan Microquiet 4000 generator? I have a 2012, 27’.

My generator manual is on the LD in storage.  If you can wait a day or so, I'll check since we have the same generator.  In the meantime, hope the following information might be helpful.

Onan 167-0275 Spark Plug For MicroQuiet 3600 and 4000 Generators

In addition, if you know the model number of the generator, any Cummins shop will have the correct parts. 




 
Re: Spark plug
Reply #2
I have the Cummins QG4000 on my 2016 MB. I used the NGK BPR5EIX-11 iridium plug on mine. They are a little more money than the OEM but just a couple dollars. Faster starts and runs good.
2016 Mid Bath