HARLEY-DAVIDSON Spark Plugs

Spark Plug, IX Iridium, 14mm Thread, .750 in. Reach, 13/16 in. Hex, Gasket Seat, Resistor, Each

Part Number: NGK-3981

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Spark Plug, NGK DCPR7EIX SOLID Iridium IX Series Spark Plug, 19mm Reach, 12mm Thread, Heat Range 7, Flat Seat, 5/8 Hex, .031 in. Gap, Each

Part Number: NGK-97637

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Spark Plug, Iridium IX, Iridium, 12mm Thread, 0.750 in. Reach, Flat Seat, 5/8 in. Wrench Size, Each

Part Number: NGK-97181

Not Yet Reviewed

Estimated Ship Date: Today

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-2115

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Spark Plug, Laser Iridium, Gasket Seat, 12mm Thread Size, 0.750in. Reach, Resistor, Each

Part Number: NGK-5477

Not Yet Reviewed

Estimated Ship Date: Today

Spark Plug, Gasket Seat, 7/8 in.-18 Thread, 0.625 in. Reach, Projected Tip, Each

Part Number: CPN-561

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2025 if ordered today

• Special Order

Spark Plug, Iridium IX, Iridium, 14mm Thread, 0.927 in. Reach, Flat Seat, 13/16 in. Wrench Size, Each

Part Number: NGK-95525

Not Yet Reviewed

Estimated Ship Date: Today

Spark Plugs, U-Groove, Copper, 12mm Thread Size, Harley-Davidson®, Pair

Part Number: ALM-2418

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Special Order

Spark Plug, Standard Series, Gasket Seat, 10mm Thread, 0.750 in. Reach, Resistor, Each

Part Number: NGK-1491

Not Yet Reviewed

Estimated Ship Date: Today

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

Part Number: ALM-2410A

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Special Order

Spark Plug, Iridium, 12mm Thread, .750 in. Reach, 5/8 in. Hex, Gasket Seat, Resistor, Each

Part Number: NGK-6046

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Feb 13, 2026 if ordered today

• Special Order

Spark Plug, Gasket Seat, Multi-Ground, 12mm Thread, ,748 in. Reach, Projected Tip, Each

Part Number: NGK-7168

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

• Special Order

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-6597

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 29, 2026 if ordered today

• Special Order

Spark Plug, XS Xtreme Sport, Iridium, 14mm Thread, 0.750 in. Reach, Gasket Seat, 13/16 in. Wrench Size, Each

Part Number: ATL-XS61

Not Yet Reviewed

• Special Order