Champion 7983 Spark Plug

Reliable Ignition Performance for Select GM and Isuzu Vehicles

The Champion Double Platinum Power 7983 spark plug delivers consistent ignition performance designed for a range of Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Pontiac models. Engineered with platinum on both the center and ground electrodes, this spark plug supports efficient combustion and long service life.

• Double platinum electrodes for enhanced durability and stable spark
• Non-removable nut electrical terminal for secure connection
• Pre-gapped at 0.050 inches (1.27 mm) for optimal ignition
• Tapered seat type ensuring proper fit and seal
• Resistor type plug to reduce electrical interference
• Thread diameter of 14 mm with a reach of 0.689 inches
• Hex size of 0.625 inches (15.88 mm) for standard installation tools

About the Champion Double Platinum Power Spark Plug Line

The Double Platinum Power line from Champion is designed to provide reliable ignition with platinum on both the center electrode tip and the ground electrode core. This configuration helps maintain a consistent spark over time, reducing electrode wear and supporting efficient fuel combustion. The 7983 spark plug is part of this line, offering a balance of durability and performance for secondary ignition systems in compatible vehicles.

Technical Details and Specifications

The Champion 7983 spark plug features a platinum pad surface on the ground electrode and a platinum center electrode tip, which contribute to extended service intervals and stable ignition. It has a manufacturer heat range of 14, a tapered seat type, and a thread diameter of 14 mm (0.551 inches). The plug includes a resistor to minimize radio frequency interference and a non-removable nut electrical terminal for secure installation. The pre-gap size is set at 0.050 inches (1.27 mm), and the insulator height is 0.12 inches, with an installed height of 2.05 inches.

Compatible Vehicles and Applications

• Buick Lucerne, Terraza
• Chevrolet Avalanche 2500, C2500, C2500 Suburban, C3500, Camaro, Corvette, Express 3500, G6, Impala, Malibu, Montana, Monte Carlo, Silverado 2500 HD, Silverado 3500, Suburban 2500, Uplander, Yukon XL 2500
• GMC Sierra 2500 HD, Sierra 3500, Sierra 3500 Classic, Savana 3500, Sierra 2500 HD Classic, Sierra 3500 Classic
• Isuzu Hombre
• Oldsmobile Cutlass Supreme, Grand Prix
• Pontiac G6

Common Issues Addressed by Champion 7983 Spark Plug

• Misfiring or rough engine idle in compatible GM and Isuzu vehicles
• Reduced fuel efficiency due to inconsistent spark
• Difficulty starting the engine under cold conditions
• Increased emissions from incomplete combustion
• Premature electrode wear affecting ignition reliability

Installation Notes and Tips

Ensure the spark plug gap is set to the specified 0.050 inches (1.27 mm) before installation if adjustment is necessary. Use a 15.88 mm (0.625 inch) hex socket for proper torque application. The tapered seat requires careful tightening to avoid damage to the cylinder head. Always follow the vehicle manufacturer’s torque specifications and installation procedures to maintain optimal performance and avoid cross-threading.

Quality Assurance and Warranty

Champion spark plugs, including the Double Platinum Power 7983, are manufactured to meet OEM standards for fit, form, and function. The use of platinum electrodes ensures extended durability and consistent ignition performance. While specific warranty details may vary, Champion products typically come with a limited warranty against manufacturing defects. Refer to Champion’s official documentation for complete warranty information.