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Autolite

Autolite Copper Core Spark Plugs

4.81 out of 5 stars 245 Customer Reviews

Autolite copper core spark plugs feature a cold-formed steel shell with precision-rolled threads, a full copper core electrode for better performance, and a one-piece terminal post to add strength. The ignition plugs use a copper-glass seal that bonds the insulator and terminal post center electrode together. This ensures full voltage at the spark gap and a 100 percent leak-proof, gas-tight seal. Autolite features an extensive application guide to cover just about everything with an internal combustion engine. Keep your engine running smoothly and reliably with Autolite replacement copper core spark plugs.

Showing In Stock Items. Show All 27 Items.

Results 1 - 21 of 21

Autolite Copper Core Spark Plugs 3924

Autolite Copper Core Spark Plugs 3924

Autolite Copper Core Spark Plugs 3924

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

Part Number: ATL-3924

4.82 out of 5 stars ( 62 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 45

Autolite Copper Core Spark Plugs 45

Autolite Copper Core Spark Plugs 45

Spark Plug, Copper Core, Resistor, 18mm x 1.50, Tapered Seat, 0.438 in, Reach, Each

Part Number: ATL-45

4.94 out of 5 stars ( 17 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 25

Autolite Copper Core Spark Plugs 25

Autolite Copper Core Spark Plugs 25

Spark Plug, Copper Core, Tapered Seat, 14mm Thread, .460 in. Reach, Partial Projected, Resistor, Each

Part Number: ATL-25

4.82 out of 5 stars ( 17 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 26

Autolite Copper Core Spark Plugs 26

Autolite Copper Core Spark Plugs 26

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Tapered Seat, 0.431 in, Reach, Each

Part Number: ATL-26

5.0 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 24

Autolite Copper Core Spark Plugs 24

Autolite Copper Core Spark Plugs 24

Spark Plug, Copper Core, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Resistor, Each

Part Number: ATL-24

4.64 out of 5 stars ( 11 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 3926

Autolite Copper Core Spark Plugs 3926

Autolite Copper Core Spark Plugs 3926

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Gasket Seat, 0.750 in, Reach, Each

Part Number: ATL-3926

4.54 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 46

Autolite Copper Core Spark Plugs 46

Autolite Copper Core Spark Plugs 46

Spark Plug, Copper Core, Resistor, 18mm x 1.50, Tapered Seat, 0.438 in, Reach, Each

Part Number: ATL-46

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 65

Autolite Copper Core Spark Plugs 65

Autolite Copper Core Spark Plugs 65

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Gasket Seat, 0.750 in, Reach, Each

Part Number: ATL-65

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 104

Autolite Copper Core Spark Plugs 104

Autolite Copper Core Spark Plugs 104

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

Part Number: ATL-104

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 216

Autolite Copper Core Spark Plugs 216

Autolite Copper Core Spark Plugs 216

Spark Plug, Copper Core, Gasket Seat, 14mm Thread, .437 in. Reach, Non-Projected Tip, Non-Resistor, Each

Part Number: ATL-216

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 605

Autolite Copper Core Spark Plugs 605

Autolite Copper Core Spark Plugs 605

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Tapered Seat, 0.679 in, Reach, Each

Part Number: ATL-605

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 103

Autolite Copper Core Spark Plugs 103

Autolite Copper Core Spark Plugs 103

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

Part Number: ATL-103

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 23

Autolite Copper Core Spark Plugs 23

Autolite Copper Core Spark Plugs 23

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Tapered Seat, 0.431 in. Reach, Each

Part Number: ATL-23

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 64

Autolite Copper Core Spark Plugs 64

Autolite Copper Core Spark Plugs 64

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Gasket Seat, 0.750 in, Reach, Each

Part Number: ATL-64

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 63

Autolite Copper Core Spark Plugs 63

Autolite Copper Core Spark Plugs 63

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Gasket Seat, 0.750 in, Reach, Each

Part Number: ATL-63

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 2545

Autolite Copper Core Spark Plugs 2545

Autolite Copper Core Spark Plugs 2545

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Tapered Seat, 0.809 in, Reach, Each

Part Number: ATL-2545

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 765

Autolite Copper Core Spark Plugs 765

Autolite Copper Core Spark Plugs 765

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

Part Number: ATL-765

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Autolite Copper Core Spark Plugs 106

Autolite Copper Core Spark Plugs 106

Autolite Copper Core Spark Plugs 106

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

Part Number: ATL-106

Not Yet Reviewed

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Autolite Copper Core Spark Plugs 666

Autolite Copper Core Spark Plugs 666

Autolite Copper Core Spark Plugs 666

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Tapered Seat, 0.431 in, Reach, Each

Part Number: ATL-666

Not Yet Reviewed

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Autolite Copper Core Spark Plugs 2546

Autolite Copper Core Spark Plugs 2546

Autolite Copper Core Spark Plugs 2546

Spark Plug, Copper Core, Tapered Seat, 14mm Thread, .807 in. Reach, Non-Projected Tip, Resistor, Each

Part Number: ATL-2546

Not Yet Reviewed

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Autolite Copper Core Spark Plugs 5144

Autolite Copper Core Spark Plugs 5144

Autolite Copper Core Spark Plugs 5144

Spark Plug, Copper Core, Tapered Seat, 14mm Thread, .807 in. Reach, Non-Projected Tip, Resistor, Each

Part Number: ATL-5144

Not Yet Reviewed

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