Champion 37 Spark Plug

Reliable Spark Plug for Buick, Chevrolet, Ford, and More

The Champion Copper Plus 37 spark plug is engineered to deliver consistent ignition performance for a wide range of vehicles including Buick, Chevrolet, Ford, GMC, and Jeep models. Designed with durable nickel electrodes and a tapered seat, 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 0.070 inches (1.78 mm) for optimal spark
• Non-removable nut electrical terminal type for secure connection
• Tapered seat design ensuring proper fit and sealing
• Heat range rating of 17 suitable for various engine conditions
• Resistor type spark plug to reduce electrical noise interference
• Thread diameter of 14 mm with 0.551 inch reach for precise installation
• Hex size of 15.88 mm (0.625 inch) for standard wrench compatibility

About the Champion Copper Plus Spark Plug Line

The Copper Plus line from Champion is designed to provide reliable ignition with copper core technology that enhances conductivity and heat dissipation. This line balances performance and durability, making it suitable for many domestic vehicles. The Copper Plus 37 spark plug maintains consistent firing and helps support smooth engine operation across multiple makes and models.

Technical Details and Compatibility

This spark plug features a single ground electrode with a nickel core and a nickel center electrode tip, which contributes to stable spark generation and resistance to electrode wear. The pre-gap size is factory set at 0.070 inches (1.78 mm), ensuring optimal spark gap for ignition efficiency. The tapered seat and 14 mm thread diameter with a 0.441 inch reach provide a secure fit in compatible engines. The resistor built into the plug helps minimize radio frequency interference, which can affect vehicle electronics.

Applications and Problem Solving

• Restores proper ignition in Buick LeSabre and Chevrolet Impala engines
• Helps reduce misfires in Ford Mustang and GMC Sierra vehicles
• Improves cold start performance in Jeep CJ7 and Pontiac Firebird
• Addresses rough idling and poor fuel economy in Oldsmobile Cutlass
• Supports consistent engine power in Cadillac DeVille and Chevrolet Camaro

Installation Notes and Tips

• Verify compatibility with your vehicle’s make and model before installation
• Use a 15.88 mm (5/8 inch) spark plug socket for removal and installation
• Check and adjust spark plug gap if necessary, though pre-gap is factory set
• Apply anti-seize compound on threads if recommended by vehicle manufacturer
• Tighten to manufacturer’s torque specifications to avoid damage

Quality Assurance and Warranty

Champion Copper Plus spark plugs are manufactured to meet OEM specifications and undergo rigorous quality control to ensure reliable performance. The Part Number 37 spark plug is designed for durability and consistent ignition. While specific warranty details may vary, Champion products typically come with a limited warranty against manufacturing defects.