I’m hoping to see if someone could explain the difference between the two plugs with same model number, but different secondary numbers. 7658 vs. 4462
My motor is a 2015 200 Pro XS, S/N: 2B116010.
Thanks in advance
I’m hoping to see if someone could explain the difference between the two plugs with same model number, but different secondary numbers. 7658 vs. 4462
My motor is a 2015 200 Pro XS, S/N: 2B116010.
Thanks in advance
2015 Phoenix 819
They are 1ZFR6J11 the 11 means pre-gapped but will still need to be gapped correctly
04 521VX 250 Pro XS
14 521C 250 Pro XS
^^True^^
11 designation = 1.1mm gap
So both have the same burn temp, etc.? I'm not concerned with gapping them, as I check every plug before I thread them in anyway.
Thanks guys
2015 Phoenix 819
They are the SAME plug the only difference is NGK "pre-gaps" the -11. Other than that, they are identical. Buying "pre-gapped" plugs is a waste of time since the gaps must be verified before installation.
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Phil
'09 Hewescraft ProV
'09 150 Optimax
Exact same plug, except for the markings and "supposed to be gapped to" spec.
Neither plug will be gapped correctly from the box (often find them exactly the same... despite the number).
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
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