Champion 511 Spark Plug

Reliable Spark Plug for Classic Buick and Chevrolet Models

The Champion Copper Plus 511 spark plug is engineered to deliver consistent ignition performance for a range of classic vehicles. Designed with durable nickel components and a precise pre-gap, this spark plug supports efficient combustion in Buick, Chevrolet, Chrysler, Oldsmobile, and Pontiac models.

• Ground electrode core made of nickel for durability
• Nickel center electrode tip for reliable spark conduction
• Pre-gap size of 0.030 inches (0.76 mm) optimized for ignition efficiency
• Flat seat type ensuring proper sealing and fit
• Thread diameter of 14 mm (0.551 inches) with 0.375-inch reach
• Removable nut electrical terminal type for easy installation
• Heat range rating of 11 suitable for small engine applications
• No resistor type, compatible with non-resistor ignition systems
• Hex size of 13/16 inch (0.813 inches) for standard wrench compatibility

Detailed Product Description

The Champion Copper Plus 511 spark plug features a nickel copper alloy ground electrode and a nickel center electrode tip, providing a balance of conductivity and wear resistance. Its 0.030-inch pre-gap ensures optimal spark exposure for efficient combustion. The flat seat design guarantees a secure fit in the cylinder head, while the 14 mm thread diameter and 0.375-inch reach make it compatible with a variety of classic American vehicles. The removable nut terminal type simplifies electrical connection and maintenance. This spark plug is classified under Champion's Copper Plus small engine line, designed to meet the ignition needs of older and small engine vehicles.

About the Champion Copper Plus Product Line

The Copper Plus line from Champion focuses on spark plugs with copper cores and nickel alloy electrodes, providing reliable ignition performance for small engines and classic vehicles. The Copper Plus 511 spark plug is part of this line, offering a balance of durability and conductivity suited for vintage Buick, Chevrolet, Chrysler, Oldsmobile, and Pontiac models. This product line is designed to maintain engine efficiency and consistent spark delivery in applications requiring a heat range of 11.

Compatible Vehicles and Common Applications

• Buick models 88 and 98
• Chevrolet Bel Air, Corvette, El Camino, Impala
• Chrysler Imperial, Newport, New Yorker
• Oldsmobile Catalina, Roadmaster
• Pontiac Catalina, Town & Country

This spark plug is suitable for addressing issues such as misfires, poor fuel economy, hard starting, rough idling, and reduced engine power in these vehicles.

Installation Notes and Tips

• Ensure the pre-gap of 0.030 inches is maintained before installation
• Use a 13/16 inch (0.813 inch) wrench for proper tightening
• Verify compatibility with your vehicle’s ignition system, especially if it requires a non-resistor plug
• Apply anti-seize compound on threads if recommended by the vehicle manufacturer
• Torque to manufacturer specifications to avoid damage or improper sealing

Quality Assurance and Warranty

Champion spark plugs, including the Copper Plus 511, are manufactured to meet industry standards for ignition components. While specific warranty details are not provided, Champion products typically adhere to strict quality control processes to ensure reliable performance in compatible vehicles.