Champion 18 Spark Plug

Reliable Ignition with Champion Copper Plus Spark Plug 18

The Champion Copper Plus Spark Plug part number 18 offers dependable ignition performance for a wide range of vehicles including Buick, Chevrolet, Ford, and Jeep models. Designed with durable nickel and copper alloy materials, this spark plug supports efficient combustion and consistent engine operation.

• Ground electrode core and center electrode tip made of nickel for durability
• Pre-set gap size of 0.045 inches for optimal spark
• Single ground electrode constructed from nickel copper alloy
• Resistor type spark plug to reduce electrical interference
• Tapered seat type with a thread diameter of 14 mm for secure fitment
• Hex size of 5/8 inch (15.88 mm) for easy installation
• Insulator height and projection of 0.12 inches for proper insulation
• Manufacturer heat range rating of 15 suitable for various engine conditions

About the Champion Copper Plus Product Line

The Copper Plus line from Champion is engineered to provide reliable ignition with enhanced conductivity through copper core electrodes. This product line focuses on delivering consistent spark performance and improved durability by using quality materials such as nickel and copper alloys. The Copper Plus spark plugs are designed to meet OEM specifications and are compatible with many domestic and import vehicles, including popular models from Buick, Cadillac, Chevrolet, and Ford.

Technical Details and Compatibility

The Champion Copper Plus Spark Plug 18 features a non-removable nut electrical terminal type and a center electrode diameter of 0.1 inches. Its tapered seat and 0.441-inch reach ensure proper sealing and fitment in compatible engines. This spark plug is compatible with a broad range of vehicles such as the Chevrolet Camaro, Ford Mustang, Buick LeSabre, and Jeep Wagoneer, among others. The resistor design helps minimize radio frequency interference, making it suitable for modern ignition systems.

Common Applications and Problem Solving

• Restores engine misfire issues caused by worn or fouled spark plugs
• Improves cold start performance in vehicles like the Pontiac Grand Prix and Oldsmobile Cutlass
• Reduces rough idling and hesitation in models such as the GMC Sierra and Dodge Ramcharger
• Enhances fuel efficiency by ensuring consistent spark delivery
• Prevents ignition system interference with resistor technology

Installation Notes and Tips

Before installation, verify the spark plug gap is set to the specified 0.045 inches to ensure optimal performance. Use a 5/8 inch (15.88 mm) socket wrench for proper torque application. The tapered seat design requires careful threading to avoid cross-threading. It is recommended to replace spark plugs in sets to maintain balanced engine operation. Always consult the vehicle’s service manual for specific torque specifications and installation procedures.

Quality Assurance and Warranty

Champion Copper Plus spark plugs are manufactured to meet strict quality standards and OEM specifications. The use of nickel and copper alloy materials ensures durability and consistent performance. While specific warranty details may vary, Champion typically offers coverage against manufacturing defects. For detailed warranty information, refer to the product packaging or manufacturer documentation.