Champion 327 Spark Plug

Reliable Spark Plug for Buick, Jeep, and Pontiac Vehicles

The Champion Copper Plus 327 spark plug is engineered to deliver consistent ignition performance for select Buick, Jeep, and Pontiac models. Designed with durable nickel and copper alloy components, this spark plug supports efficient combustion and reliable engine operation.

• Ground electrode core and center electrode tip made of nickel for durability
• Pre-set gap size of 0.040 inches (1.01 mm) for optimal spark
• Flat seat type with 0.5 inch reach and 14 mm thread diameter
• Resistor type spark plug to reduce electrical interference
• Hex size of 13/16 inch (0.813 inch) for easy installation
• Manufacturer heat range rating of 87 suitable for small engine applications

About the Champion Copper Plus Spark Plug Line

The Copper Plus line from Champion is designed to provide dependable ignition performance using a copper core electrode. This line focuses on delivering consistent spark and heat dissipation, which helps maintain engine efficiency and longevity. The Copper Plus 327 spark plug is classified specifically for small engine use, making it a suitable choice for vehicles like the Buick LeSabre, Jeep Wagoneer, and Pontiac Skylark and Tempest.

Technical Details and Specifications

This spark plug features a nickel copper alloy ground electrode and a nickel center electrode tip, both contributing to durability and reliable spark generation. The pre-gap is factory set at 0.040 inches (1.01 mm), ensuring proper ignition without additional adjustment. The flat seat design and 14 mm thread diameter with a 0.5 inch reach allow for secure fitment in compatible engines. The resistor built into the plug helps minimize radio frequency interference, supporting vehicle electronics. With an insulator height and projection of 0.06 inches, the plug maintains proper insulation and heat management.

Compatible Vehicles and Common Applications

• Buick LeSabre ignition system maintenance
• Jeep Wagoneer spark plug replacement
• Pontiac Skylark and Tempest engine tune-ups
• Addressing misfires and rough idling in compatible models
• Improving cold start performance in small engine vehicles

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 0.040 inches (1.01 mm) as factory preset. Use a 13/16 inch (0.813 inch) hex socket for removal and installation. Ensure the spark plug threads match the 14 mm diameter and 0.5 inch reach specifications to avoid damage. Tighten to manufacturer torque specifications to prevent over-tightening or loosening during operation.

Quality Assurance and Warranty

Champion Copper Plus spark plugs are manufactured to meet OEM standards for fit and function. The use of nickel and copper alloy materials supports durability and consistent performance. While specific warranty details are not provided here, Champion products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Buick, Jeep, and Pontiac vehicles.