NGK NGK Standard Spark Plug P/N:4296
NGK 6817 spark plug for the 2017 Honda CB1100 EX 1140cc and other vehicles fires the spark that ignites the fuel mixture in the cylinder. Triple gasket sealing keeps combustion gas from leaking past the plug.
Hard starting, a misfire or a rough idle can mean a spark plug is worn. These signs alone do not prove the plug is at fault, since a weak ignition coil can cause them too.
This plug also fits the 2013-2014 Honda CB1100 1140cc and the 2013 Honda CB1100 ABS 1140cc. The 2017 Honda CB1100 EX 1140cc takes four. It is meant for vehicles with OE nickel alloy plugs, not for vehicles with factory precious metal plugs.
Fit and size
Build and materials
Interchange: 31908-MGC-003 · LMAR8A-9S
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
Does the NGK 6817 spark plug fit the 2013-2014 Honda CB1100 1140cc?
Yes. NGK 6817 is listed for the 2013-2014 Honda CB1100 1140cc, and it is a direct-fit replacement for that engine.
What gap and thread size does the NGK 6817 have?
NGK 6817 has a gap of 0.9 mm (0.036 in) and an M10 - 1.0 thread size.
Are NGK spark plugs like the 6817 nickel alloy or precious metal?
This plug has a nickel alloy center electrode and a solid 98% pure copper core. It is not recommended on vehicles with factory precious metal plugs.
How can I tell when an NGK 6817 spark plug is worn?
Hard starting, a misfire or a rough idle can point to a worn plug. With the engine off and cool, a pulled plug can show worn electrodes or heavy deposits.
Is NGK 6817 the same plug as 31908-MGC-003?
Yes. 31908-MGC-003 is an interchange number for NGK 6817, and LMAR8A-9S is NGK's other number for this plug.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.