Champion 14 Spark Plug

Reliable Ignition Performance for Select Vehicles

The Champion Copper Plus spark plug, part number 14, is engineered to deliver consistent ignition performance for a range of vehicles including Buick, Chevrolet, Chrysler, Dodge, GMC, Jeep, Oldsmobile, Pontiac, and Toyota models. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine operation.

• Ground electrode core made of nickel for durability
• Center electrode tip constructed from nickel
• Pre-set gap size of 0.035 inches (0.90 mm) for optimal spark
• Flat seat type ensuring proper sealing
• Resistor type spark plug to reduce electrical noise
• Thread diameter of 0.551 inches (14 mm) with 0.375 inch reach
• Hex size of 0.813 inches (20.65 mm) for installation
• Insulator height and projection of 0.09 inches for proper fit
• Manufacturer heat range rating of 12 for heat dissipation

About the Champion Copper Plus Spark Plug Line

The Copper Plus line from Champion is designed to provide reliable ignition with a copper core electrode that enhances conductivity and heat transfer. This line balances performance and durability, making it suitable for a variety of automotive applications. The Copper Plus spark plugs are engineered to meet OEM specifications, ensuring compatibility and consistent engine performance across multiple vehicle makes and models.

Technical Details and Specifications

This RJ12YC type spark plug features a nickel copper alloy ground electrode and a nickel center electrode tip, which contribute to its durability and efficient spark generation. The flat seat design ensures a secure fit and proper sealing in the combustion chamber. With a pre-gap size of 0.035 inches, it is optimized for ignition timing and combustion efficiency. The resistor built into the plug helps minimize radio frequency interference, protecting vehicle electronics. The heat range of 12 indicates its suitability for engines requiring a cooler plug to prevent fouling.

Compatible Vehicles and Applications

• Buick models such as Century, LeSabre, and Skylark
• Chevrolet vehicles including Camaro, Impala, and Nova
• Chrysler and Dodge models like Charger, Challenger, and Dart
• GMC trucks including C10 Suburban and K20 Suburban
• Jeep models such as CJ5 and Grand Cherokee
• Oldsmobile and Pontiac vehicles including Cutlass and Bonneville
• Toyota models like Land Cruiser and Lancer

Common Issues Addressed by This Spark Plug

• Misfiring or rough idling due to worn or faulty plugs
• Difficulty starting the engine in cold conditions
• Reduced fuel efficiency from incomplete combustion
• Engine hesitation or loss of power under load
• Excessive emissions caused by poor ignition

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 0.035 inches if adjustment is necessary. Use a torque wrench to tighten the plug to the manufacturer’s recommended specification to avoid damage to the threads or improper sealing. The non-removable nut electrical terminal type requires compatible ignition wires or boots. Inspect the spark plug hole for debris and clean if needed to ensure proper seating. This spark plug is designed for a flat seat and 0.375 inch reach, so confirm compatibility with your engine’s cylinder head.

Quality Assurance and Warranty

Champion Copper Plus spark plugs are manufactured to meet strict quality standards and OEM specifications. The use of nickel and copper alloy materials ensures durability and consistent performance. While specific warranty details may vary, Champion typically offers coverage against manufacturing defects. Always consult product documentation or authorized sources for warranty information related to part number 14.