NGK Spark Plug P/N:93298
NGK 1637 spark plug for the 2006-2010 Kia Optima V6 2.7L and other vehicles ignites the air-fuel mixture in a cylinder. Like other NGK spark plugs, it is made for engines that call for fine wire iridium alloy plugs.
A misfire, rough idle or hard start can mean the plugs are worn, though a weak ignition coil or a fuel injector could be behind them too, so find the cause first.
This plug fits the 2006-2010 Kia Optima V6 2.7L and the 2007-2009 Hyundai Santa Fe V6 2.7L, and it is the Kia Rondo spark plug for the 2007-2012 V6 2.7L. If your car is not named here, look up its year and engine in the "Vehicles it fits" section.
Fit and size
Build and materials
This listing is one spark plug; the V6 2.7L and V6 3.8L engines in these vehicles take six plugs each.
Interchange: ILFR5B11
This part cross-references / interchanges with the following part numbers:
Will this Kia Optima spark plug fit the 2006-2010 Kia Optima V6 2.7L?
Yes, NGK 1637 fits the 2006-2010 Kia Optima V6 2.7L. For a different car, check its year and engine in the "Vehicles it fits" section.
Are these Hyundai Santa Fe spark plugs the right ones for a 2007-2009 V6 2.7L?
Yes. NGK 1637 is listed for the 2007-2009 Hyundai Santa Fe V6 2.7L, and that engine takes six plugs.
What thread size and hex size does the NGK 1637 have?
This NGK 1637 spark plug has an M14 - 1.25 thread and a 5/8" (16mm) hex.
What is the center electrode on these NGK iridium spark plugs?
NGK 1637 has a fine wire iridium alloy center electrode, a platinum tip on the ground electrode and a solid copper core.
Is NGK ILFR5B11 the same plug as the 1637?
Yes. NGK lists this spark plug under both 1637 and ILFR5B11, so either number points to the same part.
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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.