Spark Plug Denso IXU27 Iridium Power
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Iridium Spark Plug for Sea-Doo 4-Tec
Race upgrade Iridium Spark Plug for Sea-Doo 4-Tec
Denso Spark Plugs are the superior plug for the Sea Doo 4-tec engine and take the place of the DCPR8E NGK originals. Iridium plugs offer better idle and add RPM's with better fuel burn.
Always lube the threads when installing new spark plugs with engine oil from the dip stick.