Champion 71 Spark Plug - Exhaust Side

Overview of Champion Copper Plus Spark Plug 71

The Champion Copper Plus Spark Plug part number 71 is engineered for reliable ignition performance across a wide range of vehicles including Ford, Toyota, Honda, and Chevrolet models. Designed with durable nickel and copper alloy materials, this spark plug supports efficient combustion and consistent engine operation.

• Ground electrode tip design: J gap for optimized spark delivery
• Center and ground electrode made from nickel and nickel copper alloy
• Pre-set gap size of 0.035 inches (0.89 mm) for precise ignition
• Flat seat type with 0.75 inch reach and 14 mm thread diameter
• Non-removable nut electrical terminal and resistor type for noise suppression
• Hex size of 0.625 inch (15.88 mm) for standard installation tools
• Manufacturer heat range rating of 12 suitable for various engine conditions

Detailed Product Features and Specifications

The Champion Copper Plus 71 spark plug features a J gap ground electrode tip design that enhances spark efficiency and ignition reliability. Both the center electrode tip and ground electrode core are constructed from nickel, while the ground electrode itself uses a nickel copper alloy to balance durability and conductivity. The spark plug comes with a pre-gap size of 0.035 inches (0.89 mm), ensuring optimal spark gap for combustion. It has a flat seat type and a reach of 0.75 inches, compatible with many passenger and light truck engines.

This spark plug includes a non-removable nut electrical terminal and a built-in resistor to reduce electromagnetic interference, which is important for modern vehicles with sensitive electronics. The insulator height is 0.06 inches, and the installed height measures 1.99 inches, fitting a variety of engine designs. The hex size of 0.625 inches (15.88 mm) allows for easy installation using common hand tools.

About the Champion Copper Plus Product Line

The Copper Plus line from Champion is designed to provide dependable ignition performance by combining copper core technology with durable electrode materials. This product line focuses on delivering consistent spark and heat dissipation, which helps maintain engine efficiency and reduce fouling. The Copper Plus spark plugs are suitable for a broad range of vehicles, including luxury brands like Mercedes-Benz and Jaguar, as well as everyday models such as the Toyota Corolla and Ford Ranger.

Compatible Vehicles and Common Applications

• Compatible with Ford, Toyota, Honda, Chevrolet, Dodge, and Subaru models
• Fits vehicles such as the Toyota 4Runner, Honda Civic, Ford F-150, Chevrolet Corvette, and Subaru Outback
• Suitable for both passenger cars and light trucks requiring a 14 mm thread diameter spark plug
• Used in engines requiring a heat range 12 spark plug with a flat seat and 0.75 inch reach

Installation Notes and Tips

• Verify the spark plug gap before installation; the pre-gap is set at 0.035 inches but should be checked for specific engine requirements
• Use a 15/16 inch (0.625 inch) hex socket for proper torque application
• Ensure the spark plug threads are clean and free of debris before installation to prevent cross-threading
• Apply anti-seize compound sparingly on threads if recommended by the vehicle manufacturer
• Tighten to the vehicle manufacturer’s specified torque to avoid damage to the spark plug or cylinder head

Quality Assurance and Warranty

Champion Copper Plus spark plugs are manufactured to meet OEM specifications and undergo rigorous quality control to ensure consistent performance. The part number 71 is backed by Champion’s standard warranty coverage, which protects against manufacturing defects. This spark plug is designed to provide reliable ignition and long service life when installed and maintained according to vehicle guidelines.