Description
The Champion Copper Plus Spark Plug 412 is engineered for dependable ignition performance and consistent engine operation. Featuring a copper core center electrode, this spark plug enhances conductivity and heat dissipation, allowing for accurate heat range control and improved durability over time.
Part of the trusted Champion Copper Plus line, the RC12LYC spark plug is built to provide reliable starting, smooth performance, and resistance to corrosion. Designed to meet ISO and SAE standards, it offers dependable service in a wide range of automotive and equipment applications.
With a flat seat design, crush washer, and factory pre-gap of 0.035 in (0.89 mm), this spark plug delivers consistent ignition performance and easy installation for compatible engines.
Features
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Copper core center electrode improves conductivity and heat control
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Champion Copper Plus design for dependable performance and durability
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Resists corrosion for extended service life
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Accurate heat range control supports longer spark plug life
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Built to ISO and SAE standards for proven performance
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Resistor design helps maintain consistent ignition operation
Specifications
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Brand: Champion
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Part Number: 412
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Plug Type: RC12LYC
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Classification: Champion Copper Plus
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Grade Type: Standard Replacement
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Part Description: Spark Plug
Electrode Specifications
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Center Electrode Tip Material: Copper
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Center Electrode Design: Standard
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Ground Electrode Quantity: 1
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Ground Electrode Core Material: Nickel
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Ground Electrode Tip Material: Nickel
Dimensions
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Thread Diameter: 14.000 mm / 0.551 in
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Reach: 0.75 in
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Seat Type: Flat
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Hex Size: 0.625 in / 15.880 mm
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Insulator Height: 0.29 in
Performance
Additional Details
Fitment
The Champion 412 spark plug fits a wide range of vehicles and equipment, including:
Automotive Applications
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Chrysler Concorde (1993–1997) – 3.5L V6
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Chrysler Intrepid (1993–1997) – 3.5L V6
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Chrysler LHS (1994–1997) – 3.5L V6
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Chrysler New Yorker (1994–1996) – 3.5L V6
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Dodge Intrepid (1993–1997) – 3.5L V6
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Dodge Viper (1992–2002) – 8.0L V10
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Jeep Cherokee (1986–1998) – 2.5L L4 / 4.0L L6
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Jeep Comanche (1986–1992) – 2.5L L4 / 4.0L L6
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Jeep Grand Cherokee (1993–1998) – 4.0L L6
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Jeep Wrangler (1987–1998) – 2.5L L4 / 4.0L L6
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Jeep TJ (1997–1998) – 2.5L L4 / 4.0L L6
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Plymouth Prowler (1997) – 3.5L V6
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Eagle Vision (1993–1997) – 3.5L V6
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Eagle Premier (1988–1989) – 2.5L L4
Small Engine & Equipment Applications
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Select Kohler engines (CV11, CV13, CV14, CH11, CH13, CH14)
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Tohatsu TLDI L3 engines
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U.S. Motors applications
For complete compatibility, verify the engine size, model, and year against the full application list before installation.