Autolite Spark Plugs & Glow Plugs

Spark Plug, XP Xtreme Performance, Iridium, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-XP5243

Not Yet Reviewed

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Spark Plug, Iridium XP, Iridium, 14mm Thread, 0.982 in. Reach, Tapered Seat, 16mm Wrench Size, Each

Part Number: ATL-XP6043

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Spark Plug, Copper Core, Gasket Seat, 14mm Thread, .375 in. Reach, Non-Projected, Non-Resistor, Each

Part Number: ATL-458

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Estimated Ship Date: Monday 1/5/2026

Spark Plug, Double Platinum, 14mm Thread, 0.750 in. Reach, Flat Seat, 13/16 in. Wrench Size, Each

Part Number: ATL-APP64

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Estimated Ship Date: Monday 1/5/2026

Spark Plug, XS Xtreme Sport, Iridium, 14mm Thread, 0.750 in. Reach, Flat Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-XS3922

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Estimated Ship Date: Monday 1/5/2026

Spark Plug, Iridium XP, Iridium, 12mm Thread, 1.400 in. Reach, Flat Seat, 16mm Wrench Size, Each

Part Number: ATL-XP5701

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Spark Plug, Double Platinum, 14mm Thread, 0.982 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP5426

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Spark Plug, XS Xtreme Sport, Iridium, 14mm Thread, 0.750 in. Reach, Flat Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-XS5224

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Spark Plug, Double Platinum, 14mm Thread, 0.750 in. Reach, Gasket Seat, 13/16 in. Wrench Size, Each

Part Number: ATL-APP3923

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Spark Plug, Copper Core, Gasket Seat, 14mm Thread, .750 in. Reach, Partial Projected, Resistor, Each

Part Number: ATL-4263

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Spark Plug, Copper Core, Tapered Seat, 14mm Thread, .708 in. Reach, Projected Tip, Resistor, Each

Part Number: ATL-606

5.0 out of 5 stars ( 2 )

Spark Plug, Double Platinum, 12mm Thread, 1.043 in. Reach, Flat Seat, 16mm Wrench Size, Each

Part Number: ATL-APP6203

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Estimated Ship Date: Monday 1/5/2026

Spark Plug, Copper, 14mm Thread, 0.500 in. Reach, Gasket Seat, 13/16 in. Wrench Size, Each

Part Number: ATL-425

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Spark Plug, Single Platinum, Platinum, 14mm Thread, 0.750 in. Reach, Flat Seat, 13/16 in. Wrench Size, Each

Part Number: ATL-AP66

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Spark Plug, Iridium XP, Iridium, 14mm Thread, 0.809 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-XP5144

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Estimated Ship Date: Monday 1/5/2026

Spark Plug, Copper Core, Tapered Seat, 14mm Thread, 0.460 in. Reach, Resistor, Each

Part Number: ATL-147

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/5/2026

Spark Plug, Copper Core, Tapered Seat, 14mm Thread, 0.708 in. Reach, Resistor, Each

Part Number: ATL-5243

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/5/2026

Spark Plug, Single Platinum, Platinum, 14mm Thread, 0.750 in. Reach, Flat Seat, 16mm Wrench Size, Each

Part Number: ATL-AP3922

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Spark Plug, Copper, 14mm Thread, 0.375 in. Reach, Flat Seat, 19mm Wrench Size, Each

Part Number: ATL-265

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Spark Plug, Copper, 14mm Thread, 0.809 in. Reach, Tapered Seat, 16mm Wrench Size, Each

Part Number: ATL-5145

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Spark Plug, Racing Plug, 14mm Thread, 0.375 in. Reach, Non-Resistor, Gasket Seat, Universal, Each

Part Number: ATL-292

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/5/2026

Spark Plug, Double Platinum, 14mm Thread, 1.000 in. Reach, Tapered Seat, 16mm Wrench Size, Each

Part Number: ATL-APP5263

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Spark Plug, Single Platinum, Platinum, 14mm Thread, 0.750 in. Reach, Flat Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-AP5405

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Estimated Ship Date: Monday 1/5/2026

Spark Plug, Copper Core, Gasket Seat, 18mm Thread, .500 in. Reach, Non-Projected, Resistor, Each

Part Number: ATL-388

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Estimated Ship Date: Monday 1/5/2026

Spark Plug, Copper Core, Non-Resistor, 10mm x 1.00, Gasket Seat, 0.500 in, Reach, Each

Part Number: ATL-4194

Not Yet Reviewed

Estimated Ship Date: Monday 1/5/2026