Part Number: 8M0204739
The ITR4A-15 spark plugs come pre-gapped as specified by your engine manufacturer. Use only the spark plug listed in your engine owner’s manual. Using the wrong plug can reducing optimum performance
- NGK Fine Wire Tipped Center Electrode Laser Iridium Spark Plugs deliver slow wear rate
- Check your engine owner’s manual for the correct spark plug and use only the plug as recommended by your engine’s original equipment manufacturer
- NGK Trivalent metal plating also provides superior anti-corrosion in the marine environment and anti-seizing for easier removal
- Longer service life with a copper core and ribbed suppressor seal for durability and performance
- Replace all the engine plugs at the same time
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