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608KEB

Spark plug cross reference

By 608KEB, in Engines

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OLDERGUY    0

OLDERGUY
Posted
On 12/9/2015 at 11:04 PM, 608KEB said:

Will a champion RS17YX sparkplug work in my Onan p220g engine gapped at .025? What's the difference between that and the RH14YC?

 

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squonk    40,827

squonk
Posted (edited)

The "S" and "H" designate the hex size . S is 13/16" and the H is 5/8. 17 and 14 are both for small engines. X is fine wire  and the C is std. copper. The big difference is the 17 is a much hotter plug than the 14 and could burn a piston.

Edited by squonk

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