Champion 401 Spark Plug

Reliable Ignition with Champion Copper Plus Spark Plug 401

The Champion Copper Plus Spark Plug 401 is engineered to deliver consistent ignition performance for a wide range of vehicles including Ford, Chevrolet, Cadillac, and Mercedes-Benz models. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

Key Features of Champion Copper Plus Spark Plug 401

• Ground electrode core made of nickel for durability
• Nickel center electrode tip for reliable spark delivery
• Pre-gap size of 0.040 inches (1.02 mm) for optimal ignition
• Single ground electrode constructed from nickel copper alloy
• Tapered seat type ensuring secure fitment
• Resistor type spark plug to reduce electrical interference
• Removable nut electrical terminal type for easy installation
• Thread diameter of 14 mm (0.551 inches) with 0.689 inch reach
• Hex size of 15.88 mm (0.625 inches) for standard wrench compatibility
• Manufacturer heat range rating of 12 for balanced thermal performance

Detailed Description of Champion Copper Plus Spark Plug 401

This spark plug features a nickel ground electrode core and a nickel center electrode tip, providing a robust and consistent spark for ignition. The single ground electrode is made from a nickel copper alloy, which enhances conductivity and wear resistance. With a pre-gap size of 0.040 inches (1.02 mm), the plug is pre-set to optimize combustion efficiency. The tapered seat type ensures a tight seal in the cylinder head, preventing compression loss. Additionally, the resistor design helps minimize radio frequency interference, protecting vehicle electronics. The removable nut terminal type simplifies installation and removal, while the 14 mm thread diameter and 0.689 inch reach make it compatible with many domestic and import vehicles.

About the Champion Copper Plus Product Line

The Copper Plus line from Champion is designed to provide dependable ignition components with copper core technology. This product line focuses on delivering reliable spark plugs that balance performance and durability, suitable for a variety of passenger cars and light trucks. The Copper Plus spark plugs, including part number 401, are engineered to meet OEM specifications and offer consistent ignition performance across multiple vehicle makes and models.

Compatible Vehicles and Common Applications

• Compatible with Ford F-150, Explorer, Mustang, and Taurus models
• Fits Chevrolet Silverado 1500, Camaro, and Avalanche vehicles
• Suitable for Cadillac CTS, Escalade, and DeVille series
• Works with Mercedes-Benz 190E, 300SE, and 300SEL models
• Also compatible with Audi A8, Buick LaCrosse, and Lincoln Navigator

Common Issues Addressed by Champion Copper Plus Spark Plug 401

• Engine misfires and rough idling
• Reduced fuel efficiency and increased emissions
• Difficulty starting the engine
• Loss of power during acceleration
• Interference with vehicle electronics due to spark noise

Installation Notes and Tips

• Verify correct spark plug gap of 0.040 inches before installation
• Use a torque wrench to tighten to manufacturer specifications
• Ensure the tapered seat is clean and free of debris for proper sealing
• Check compatibility with vehicle make and model prior to installation
• Replace spark plugs in sets to maintain engine balance

Quality Assurance and Warranty

Champion Copper Plus spark plugs are manufactured to meet strict quality standards and OEM specifications. The part number 401 undergoes rigorous testing to ensure durability and consistent performance. While specific warranty details may vary, Champion typically offers coverage against manufacturing defects to provide confidence in product reliability.