NGK Spark Plug - SILZKBR8D8S - 97506

While the plug comes pre-gapped, if adjustment is necessary, use a wire-type gap gauge. Be extremely careful not to touch or pressure the fragile iridium center electrode.

Laser Iridium plugs are typically designed for high-mileage intervals. Refer to your vehicle’s service manual for the recommended replacement schedule, which is often between 60,000 and 100,000 miles.

No. NGK uses trivalent metal plating on their spark plug shells, which provides anti-seize protection during installation and removal. Adding external compound can result in improper torque.

97506 is the stock number for the NGK SILZKBR8D8S. It is used to identify the specific part number for retail and inventory purposes.

These plugs are designed to maintain optimal engine performance and efficiency. While you may notice smoother idling and better throttle response, a spark plug alone will not significantly increase peak horsepower.

Check that the ignition coil is fully seated and the spark plug is torqued to the correct specification.

Verify that the fuel system and battery are in good condition; the spark plug may not be the root cause of starting difficulty.