Champion 818 Spark Plug

Reliable Ignition with Champion Copper Plus Spark Plug 818

The Champion Copper Plus 818 spark plug is engineered for consistent ignition performance in small engine applications. Designed with durable nickel and copper alloy materials, this spark plug supports efficient combustion and reliable starts for various small engines.

• Ground electrode core made of nickel for durability
• Nickel center electrode tip ensuring stable spark delivery
• Pre-gap size of 0.025 inches for optimal spark gap
• Flat seat type with 0.75-inch reach for secure fitment
• Resistor type spark plug to reduce electrical noise
• Thread diameter of 14 mm (0.551 inch) compatible with many small engines
• Heat range 2 for balanced thermal performance
• Removable nut electrical terminal for easy installation
• Hex size 20.65 mm (0.813 inch) for standard wrench compatibility

Champion Copper Plus Product Line Overview

The Copper Plus line from Champion focuses on spark plugs that combine copper core technology with durable electrode materials to enhance ignition reliability in small engines. The 818 spark plug benefits from this design approach, offering a nickel copper alloy ground electrode and nickel center electrode tip that support consistent spark and combustion efficiency.

Technical Details and Specifications

The Champion Copper Plus 818 spark plug features a single ground electrode made from a nickel copper alloy, paired with a nickel center electrode tip. The pre-gap is set at 0.025 inches (0.65 mm), optimized for small engine ignition systems. It has a flat seat type and a reach of 0.75 inches, ensuring proper seating in compatible engine heads. The thread diameter measures 14 mm (0.551 inch), suitable for many small engine models. This spark plug includes a resistor to minimize electrical interference and a removable nut electrical terminal for ease of connection. The heat range rating of 2 balances heat dissipation and performance for typical small engine operating conditions.

Applications and Problem Solving

• Compatible with various small engine makes and models requiring a 14 mm thread spark plug
• Addresses issues with inconsistent ignition and misfires
• Helps reduce electrical noise interference in ignition systems
• Suitable for engines needing a heat range 2 spark plug for optimal thermal management
• Ideal replacement for worn or fouled spark plugs in lawn mowers, generators, and other small engines

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 0.025 inches to ensure proper ignition. Use a 20.65 mm (13/16 inch) socket or wrench to install the spark plug, tightening to the manufacturer's torque specifications. The removable nut terminal allows for easy connection of ignition wires. Ensure the flat seat type matches the engine's cylinder head design for a secure fit. Inspect the spark plug threads and clean the cylinder head threads if necessary before installation.

Quality Assurance and Warranty

Champion Copper Plus spark plugs are manufactured to meet industry standards for small engine ignition components. The 818 spark plug includes a resistor to reduce electrical interference and is constructed with durable nickel and copper alloy materials for longevity. While specific warranty details are not provided, Champion products typically adhere to quality control processes to ensure reliable performance in compatible small engine applications.