NGK Spark Plug P/N:3686
NGK 1989 spark plug for the 2010-2011 Kia Soul 4-cylinder 1.6L and other vehicles fires the spark that ignites the air-fuel mixture in each cylinder. Among NGK iridium spark plugs, this one is recommended for vehicles that come with fine wire iridium alloy plugs from the factory.
Hard starting, a rough idle or a misfire can mean the plug is worn, though an ignition coil or a fuel injector can be behind the same signs, so find the cause before replacing it. This listing is one plug, and the engine takes one per cylinder.
It is a spark plug for the 2010-2011 Kia Soul 4-cylinder 1.6L, the 2007-2013 Mitsubishi Outlander V6 3.0L and the 2008-2015 Smart fortwo 3-cylinder 1.0L.
Fit and size
Build and materials
Interchange: ILKR7B8
This part cross-references / interchanges with the following part numbers:
Does the 2007-2013 Mitsubishi Outlander V6 3.0L take this spark plug?
Yes. NGK 1989 is a spark plug for the 2007-2013 Mitsubishi Outlander V6 3.0L, which takes six, one per cylinder.
Which metals are in the electrodes of NGK spark plugs like the 1989?
The 1989 has an iridium alloy fine wire center electrode, and its metallurgy is iridium and platinum. Its core is 98% pure copper.
What thread size and hex does this NGK spark plug have?
NGK 1989 has an M12 - 1.25 thread and a 5/8" (16 mm) hex, with a crush seat.
Is NGK ILKR7B8 the same plug as the 1989?
Yes. NGK lists this plug under both 1989 and ILKR7B8, so either number finds the same spark plug.
How do I check the gap on this spark plug?
With the engine off and cool and the plug out, measure the gap against .032 IN (0.8 MM). A shop can also test the ignition if you are unsure.
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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.