Champion 844 Spark Plug

Reliable Spark Plug for Ford and Lincoln Vehicles

The Champion Copper Plus 844 spark plug is engineered to deliver consistent ignition performance for select Ford and Lincoln models. Designed with durable nickel and copper alloy components, 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-set gap size of 0.030 inches (0.78 mm) for optimal ignition
• Flat seat type ensuring proper sealing
• Thread diameter of 14 mm (0.551 inches) with 0.438-inch reach
• Heat range rating of 10 for controlled temperature management
• Non-removable nut electrical terminal type
• Hex size of 20.65 mm (0.813 inches) for easy installation
• Single ground electrode made from nickel copper alloy
• Plug type H10c, compatible with specific small engine applications

About the Champion Copper Plus Spark Plug Line

The Copper Plus line from Champion focuses on delivering spark plugs with copper cores and nickel alloy electrodes, providing a balance of conductivity and durability. This line is tailored for small engine applications, including those found in Ford and Lincoln vehicles such as the Continental, F-100, F-250, F-350, and Zephyr. The Copper Plus spark plugs are designed to maintain consistent performance under typical operating conditions.

Technical Details and Compatibility

The Champion Copper Plus 844 spark plug features a nickel ground electrode core and a nickel center electrode tip, which contribute to reliable spark generation and resistance to electrode wear. The pre-gap size is factory set at 0.030 inches (0.78 mm), ensuring proper spark gap without additional adjustment. With a heat range of 10, this plug manages combustion chamber temperatures effectively to prevent fouling or overheating. The flat seat design and 14 mm thread diameter with 0.438-inch reach make it compatible with various Ford and Lincoln engines, including models like the F-100 and Continental.

Common Applications and Problem Solving

• Restores proper ignition in Ford F-250 and F-350 engines
• Addresses misfires and rough idling in Lincoln Continental vehicles
• Improves cold start performance for Ford Zephyr models
• Reduces electrode wear in small engine applications
• Helps maintain fuel efficiency by ensuring consistent spark

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 0.030 inches (0.78 mm) as specified. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended torque to avoid damage to the flat seat or threads. The non-removable nut electrical terminal requires compatible ignition wire connectors. Ensure the engine is cool before replacing spark plugs to prevent thread damage.

Quality Assurance and Warranty

Champion Copper Plus spark plugs are manufactured to meet OEM specifications for fit and function. While specific warranty details are not provided, Champion products typically adhere to industry standards for quality and reliability. Using the correct part number 844 ensures compatibility and performance for your Ford or Lincoln vehicle.