NGK 1961 Spark Plug

NGK Laser Iridium Spark Plug for OE Fitment

The NGK Laser Iridium Spark Plug, part number 1961, is built for direct-replacement service in select Volkswagen, Audi, and Porsche applications. It uses an iridium center electrode tip, a nickel ground electrode, and a 0.036 in. pre-gap to match OE-style ignition requirements.

Key Features

• Laser Iridium spark plug with iridium center electrode tip material
• Part number 1961 / NGK ILZKR7A
• 0.036 in. pre-gap for OE-spec service applications
• 1000 ohm resistance for ignition system compatibility
• Standard ground electrode design with a single ground electrode
• Copper center electrode core and nickel ground electrode core
• Flat seat, 12 mm thread diameter, 5/8 in. hex size
• Heat range 7 with 26.5 mm reach

Product Details

NGK’s Laser Iridium line is built around OE-style durability and consistent ignition performance. This spark plug is specified for a range of Volkswagen Passat, Volkswagen CC, Volkswagen Touareg, Audi Q7, and Porsche Cayenne applications, with fitment notes calling for a 0.036 in. gap and OE manufacturer service intervals on many vehicles. The NGK 1961 is a direct-service ignition component for engines that require the ILZKR7A specification.

This part cross-references Bosch 7431 for the same application.

Common Issues This Spark Plug Can Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from inconsistent spark delivery
• Misfire conditions related to electrode wear
• Reduced throttle response from degraded ignition performance
• Service interval replacement on OE-specified Volkswagen, Audi, and Porsche engines

Installation Notes and Tips

Verify engine application by year, make, model, and OE service notes before installation. Confirm the plug gap is set to 0.036 in. where required, and inspect the ignition coil, boots, and threads during service. Use the correct torque procedure for the flat-seat design to avoid damage to the cylinder head or plug shell. Compatible With 2019 Volkswagen Atlas, 2018 Volkswagen Atlas, 2012-2018 Volkswagen Passat, 2006-2008 Volkswagen Passat, 2011-2017 Volkswagen CC, 2013-2017 Volkswagen Touareg, 2011-2012 Volkswagen Touareg, 2007-2008 Volkswagen Touareg, 2007-2010 Audi Q7, 2010 Porsche Cayenne, 2009-2010 Volkswagen CC, 2010 Volkswagen Passat, 2009-2010 Volkswagen Passat CC, 2009-2010 Volkswagen Touareg, 2009 Porsche Cayenne, 2009 Volkswagen Passat, and 2008 Porsche Cayenne.

Quality Assurance

NGK is a major OE supplier and manufacturer of spark plugs in North America, with more than 80 years of automotive experience and broad coverage across domestic and import vehicle applications. The 1961 Laser Iridium spark plug is produced to support original-equipment standards for durability and operational performance.