Champion 104 Spark Plug

Reliable Spark Plug for Chevrolet, Honda, and Volkswagen Vehicles

The Champion Copper Plus 104 spark plug is engineered to deliver consistent ignition performance for select Chevrolet, Honda, and Volkswagen models. Designed with durable nickel and copper alloy materials, this spark plug supports efficient combustion and reliable engine operation.

• Ground electrode core made of nickel for durability
• Nickel center electrode tip for stable spark delivery
• Pre-gapped to 0.025 inches (0.64 mm) for optimal ignition
• Flat seat type ensuring proper sealing
• Resistor type spark plug to reduce electrical noise
• Thread diameter of 14 mm (0.551 inch) with 0.75 inch reach
• Hex size of 20.65 mm (0.813 inch) for easy installation
• Manufacturer heat range rating of 4 for balanced heat dissipation

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 provide reliable ignition in small engine applications. The Copper Plus 104 spark plug is part of this line, offering a nickel copper alloy ground electrode and nickel center electrode tip to maintain consistent spark performance and longevity in vehicles like the Chevrolet Corvette, Honda Accord, and Volkswagen Vanagon.

Technical Details and Performance

This spark plug features a single ground electrode constructed from a nickel copper alloy, paired with a nickel center electrode tip. The pre-gap size is set at 0.025 inches (0.64 mm), which supports efficient combustion and ignition timing. The flat seat design ensures a secure fit and proper sealing within the combustion chamber. With a heat range of 4, this plug balances heat dissipation to prevent fouling and overheating. The resistor built into the plug helps minimize electromagnetic interference with vehicle electronics.

Applications and Problem Solving

• Compatible with Chevrolet Corvette, Honda Accord, Honda Prelude, and Volkswagen Vanagon models
• Helps resolve misfires and rough idling issues
• Improves cold start performance and throttle response
• Reduces spark plug fouling in normal driving conditions
• Supports consistent ignition timing for smoother engine operation

Installation Notes and Tips

• Ensure the spark plug gap is set to 0.025 inches (0.64 mm) before installation
• Use a 20.65 mm (13/16 inch) socket wrench for proper torque application
• Verify the flat seat type matches your engine’s cylinder head design
• Apply anti-seize compound sparingly on threads if recommended by the vehicle manufacturer
• Follow vehicle-specific torque specifications to avoid damage

Quality Assurance and Warranty

The Champion Copper Plus 104 spark plug is manufactured to meet OEM specifications for fit, form, and function. It includes a resistor to reduce electrical noise and is constructed with high-quality nickel and copper alloy materials for durability. While specific warranty details are not provided, Champion products typically adhere to industry standards for quality and reliability.