NGK 96509 Spark Plug

NGK Laser Iridium Spark Plug for Honda Accord

NGK Laser Iridium Spark Plug 96509 is built for precise ignition performance in select Honda Accord applications. It uses an iridium center electrode tip, a nickel ground electrode, and a 0.044 in pre-gap to match OE-style specifications for the listed vehicles.

Key Features

• Laser Iridium spark plug from NGK’s Laser Iridium product line
• Iridium center electrode tip material for stable spark delivery
• Nickel ground electrode with standard configuration
• 0.044 in pre-gap size for the listed Honda Accord fitments
• 5000 ohm resistance and non-removable nut terminal
• 12 mm thread diameter, 26.5 mm reach, 14 mm hex size, flat seat
• Manufacturer heat range 7

Product Details

NGK part number 96509, also identified as ILZKAR7E11S, is a Laser Iridium spark plug engineered for OE-style ignition service. NGK is a long-established OE supplier in North America, and this plug reflects that background with a copper core center electrode, iridium tip, and standard ground electrode design. It is listed for 2014-2015 Honda Accord and 2017 Honda Accord applications, with the spark plug gap specified at 0.044 inches per OE requirements.

This part cross-references Dorman - HELP 96509 for the same application.

Common Issues This Part Can Address

• Rough idle caused by worn spark plug electrodes
• Hard starting from weak or inconsistent spark output
• Misfire conditions related to incorrect plug gap or electrode wear
• Reduced throttle response from degraded ignition performance
• Fuel economy loss tied to aging ignition components

Installation Notes and Tips

Verify the engine application before installation and confirm the plug gap matches the listed 0.044 in specification. Use the correct 14 mm hex spark plug socket and follow the vehicle manufacturer’s torque procedure for the 12 mm thread and flat seat design. Inspect ignition coils and boots during service to help prevent repeat misfire concerns.

Quality Assurance

NGK manufactures spark plugs for a wide range of domestic and import vehicles and supplies original equipment components for North American applications. Part number 96509 is built to OE-style standards for durability and consistent ignition performance in the listed Honda Accord fitments.