Manufactures Proprietary Terms Champion PowerSport Champion Stainless Steel Plugs EZ Start Conversion Charts Displacement Conversion Chart Heat Range Interchange (NGK-Denso-Champion-Bosch) Center Electrodes Fine wire Tapered Ground Electrodes V-trimmed Angled ground Cut back ground Multi-ground Resistor Types Resistor Inductive resistor Q-type suppressor Resistor Q-type suppressor Precious Metal Types Iridium Platinum Gold palladium Plug Problems Breakage Erosion Lead Erosion Lead Fouling Melting Normal Plug Wear Overheating Shadowing Fouling Bridging Deposits Pre-ignition Flashover Quenching Plug Properties Thread Reach Hex Terminal Seat Center electrode Ground electrode Copper core Diameter Ignition Anachronism Wasted Spark Ignition Radio Frequency Interference RFI Distributorless Ignition System DIS Capacitor Discharged Ignition CDI Resistor Glow Plugs After Glow Manufacturer's Numbering System Champion

Heat Range Cross Refence Chart NGK-Denso-Champion-Bosch Heat Range Interchange. This cross-reference is provided as a convenience only. Due to differences in design and material by each manufacturer, you may not always arrive at the proper equivalent heat range when crossing from one brand to another. We recommend use of application search for specific plug application.

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