HARLEY-DAVIDSON Spark Plugs

Spark Plug, Standard Series, Gasket Seat, 14mm Thread, .437 in. Reach, Non-Resistor, Each

Part Number: NGK-3212

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

Spark Plug, Copper Core, Gasket Seat, 12mm Thread, .750 in. Reach, Partial Projected, Resistor, Each

Part Number: ATL-4164

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Spark Plug, XS Xtreme Sport, Iridium, 12mm Thread, 0.750 in. Reach, Gasket Seat, 11/16 in. Wrench Size, Each

Part Number: ATL-XS4162

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Estimated Ship Date: Today

Spark Plug, 12mm Thread Size, .750 in. Reach, 6 Heat Range, Powersports, Each

Part Number: CPN-8809-1

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Estimated Ship Date: Today

Spark Plugs, U-Groove, Copper, 14mm Thread Size, Harley-Davidson®, Pair

Part Number: ALM-2410A

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Spark Plugs, Platinum Tip, 14mm Thread Size, Harley-Davidson®, Pair

Part Number: ALM-Y2410P

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Estimated Ship Date: Feb 17, 2026 if ordered today

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