Spark Plugs for Onan Marquis 5500

[MichiganMarty]

What gives? I have to go to the RV store to buy spark plugs for my generator?
Really?
Can anyone help me out here? My Generator is a Onan Marquis 5500 HGJAB and even ONAN company told me they would not give me the spark plug part number, I have to go to the RV Dealer for that.

So, does anyone know what spark plug these take so I can buy a pair from someone who is open on weekends?

Thanks all!

[JRTJH]

You can download the ONAN manual here: http://www.cumminsonan.com/www/html/.../rv/F-1123.pdf



According to that manual on page 41, the ONAN part number for the plug is 167-1638. The NGK number is NGK - BPR4EY or you may try an AUTOLITE - 65 The gap setting is 0.025

PLEASE verify the above numbers. I did not cross reference them up myself, I used websites to get the information. If you have one of the spark plugs out and in your hand, with the number on the plug, any autoparts store can crossreference for you.

[Honda4us]

That matches the part # I have.