Champion Copper Plus Spark Plugs

4.82 out of 5 stars 175 Customer Reviews

Champion Copper Plus spark plugs have been original equipment on a wide variety of engines for many years. They feature nickel alloy centers and ground electrodes with efficient wear characteristics. In addition, the spark plugs' extrusion of copper into the center electrode allows for increased conductivity and heat control. Manufacturers have used them in non-automotive applications, such as lawn and garden and other power equipment. Replace your old plugs with Champion Copper Plus spark plugs for maximum reliability.

Results 1 - 25 of 272

Champion Copper Plus Spark Plugs 14

Spark Plug, RJ12YC, Copper Plus, 14mm Thread, .375 in. Reach, Resistor, GM, Jeep, Mopar, International, Each

Part Number: CPN-14

4.94 out of 5 stars ( 17 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 404

Spark Plug, RN12YC, Copper Plus, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: CPN-404

4.94 out of 5 stars ( 16 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 405

Spark Plug, RN14YC, Copper Plus, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: CPN-405

4.63 out of 5 stars ( 8 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 71S

Spark Plug, Resistor, Nickel Tip, Copper Core, 14mm Thread Size, 0.750 in. Reach, Gasket Seat, Set of 24

Part Number: CPN-71S

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 18

Spark Plug, RV15YC4, Copper Plus, 14mm Thread, .460 in. Reach, Resistor, Each

Part Number: CPN-18

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 570

Spark Plug, RE14MCC4, Copper Plus, 14mm Thread, 1 in. Reach, Projected Tip, Resistor, Each

Part Number: CPN-570

4.8 out of 5 stars ( 25 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 406

Spark Plug, RV12YC, Copper Plus, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Resistor, Each

Part Number: CPN-406

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 22

Spark Plug, RF11YC, Copper Plus, 18mm Thread, .460 in. Reach, Resistor, Ford, Mercury, Each

Part Number: CPN-22

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 344

Spark Plug, RC9YC, Copper Plus, Flat Seat, 14mm Thread, .750 in. Reach, Projected Tip, Non-Resistor, Each

Part Number: CPN-344

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 63

Spark Plug, RJ14YC, Copper Plus, 14mm Thread, .375 in. Reach, Resistor, Each

Part Number: CPN-63

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 401

Spark Plug, RS12YC, Copper Plus, Tapered Seat, 14mm Thread, .708 in. Reach, Projected Tip, Resistor, Each

Part Number: CPN-401

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 429

Spark Plug, 3X, Copper Plus, Gasket Seat, 7/8-18 Thread, .813 in. Reach, Non-Resistor, Each

Part Number: CPN-429

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 13

Spark Plug, RS14YC6, Copper Plus, 14mm Thread, .708 in. Reach, Resistor, Each

Part Number: CPN-13

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 121

Spark Plug, RV8C, Copper Plus, 14mm Thread, .460 in. Reach, Resistor, Chevy, Each

Part Number: CPN-121

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 10

Spark Plug, J12YC, Copper Plus, Gasket Seat, 14mm Thread, .380 in. Reach, Non-Resistor, Each,

Part Number: CPN-10

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 412

Spark Plug, RC12LYC, Copper Plus, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: CPN-412

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 446

Spark Plug, Copper Plus, 14mm Thread, 1.043 in. Reach, Resistor, Each

Part Number: CPN-446

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 438

Spark Plug, RC12ECC, Copper Plus, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: CPN-438

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 431S

Spark Plug, RC14YC, Copper Plus, Flat Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Set of 24

Part Number: CPN-431S

Not Yet Reviewed

Estimated Ship Date: Jul 16, 2025 if ordered today

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Estimated Ship Date: Jul 16, 2025 if ordered today

Champion Copper Plus Spark Plugs J8C

Spark Plug, Copper Plus, 14mm Thread Size, 0.375 in. Reach, 8 Heat Range, Each

Part Number: CPN-841

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 415

Spark Plug, RN9YC, Copper Plus, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: CPN-415

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 25

Spark Plug, RV17YC, Copper Plus, 14mm Thread, .460 in. Reach, Resistor, Each

Part Number: CPN-25

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 436

Spark Plug, RC12LC4, Copper Plus, 14mm Thread, .750 in. Reach, Resistor, Each

Part Number: CPN-436

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs RC14YC

Spark Plug, Copper Plus, Gasket Seat, 14mm Thread, .551 in. Reach, Each

Part Number: CPN-431-1

Not Yet Reviewed

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

Champion Copper Plus Spark Plugs 58

Spark Plug, RJ18YC, Copper Plus, 14mm Thread, .375 in. Reach, Projected Tip, Resistor, Each

Part Number: CPN-58

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/7/2025

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Estimated Ship Date: Monday 7/7/2025

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