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Autolite Double Platinum Spark Plugs

4.92 out of 5 stars 25 Customer Reviews

Autolite Double Platinum spark plugs virtually eliminate plug gap erosion, reduce misfires, and provide 100,000-mile durability. They are the preferred spark plug technology for late model DIS ignition equipped vehicles. Autolite Double Platinum spark plugs have high-nickel chrome alloy side electrodes, full platinum tips, and a necked down and full copper core center electrode. If you are looking for maximum spark plug performance, replace your plugs with these Autolite Double Platinum spark plugs.

Results 1 - 25 of 43

Spark Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.880 in. Reach, Each

Part Number: ATL-AR3932X

5.0 out of 5 stars ( 1 )

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Spark Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.880 in. Reach, Each

Part Number: ATL-AR3933X

5.0 out of 5 stars ( 1 )

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Spark Plug, Double Platinum, 18mm Thread, 0.460 in. Reach, Tapered Seat, 13/16 in. Wrench Size, Each

Part Number: ATL-APP45

5.0 out of 5 stars ( 6 )

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

Part Number: ATL-APP3924

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Spark Plug, Double Platinum, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP5245

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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-APP65

5.0 out of 5 stars ( 3 )

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

Part Number: ATL-APP985

5.0 out of 5 stars ( 4 )

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Spark Plug, Double Platinum, 14mm Thread, 0.460 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP25

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Spark Plug, Double Platinum, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP104

4.67 out of 5 stars ( 6 )

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

Part Number: ATL-APP5224

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Spark Plug, Double Platinum, 14mm Thread, 0.460 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP26

5.0 out of 5 stars ( 2 )

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Spark Plug, Double Platinum, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP605

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Spark Plug, Double Platinum, 14mm Thread, 1.000 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP5364

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Spark Plug, Double Platinum, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP103

5.0 out of 5 stars ( 2 )

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

Part Number: ATL-APP5363

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

Part Number: ATL-APP5325

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

Part Number: ATL-APP6203

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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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Estimated Ship Date: Jul 28, 2025 if ordered today

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Estimated Ship Date: Jul 28, 2025 if ordered today

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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Estimated Ship Date: Jul 25, 2025 if ordered today

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Estimated Ship Date: Jul 25, 2025 if ordered today

Spark Plug, Double Platinum, 14mm Thread, 0.750 in. Reach, Gasket Seat, 3/4 in. Wrench Size, Each

Part Number: ATL-APP3926

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Estimated Ship Date: Tomorrow if ordered today

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

Part Number: ATL-APP5863

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Spark Plug, Double Platinum, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP606

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

Part Number: ATL-APP5701

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Estimated Ship Date: Aug 4, 2025 if ordered today

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Estimated Ship Date: Aug 4, 2025 if ordered today

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

Part Number: ATL-APP5263

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