NGK 2667 Spark Plug

NGK Iridium IX Spark Plug 2667

NGK Iridium IX Spark Plug 2667 is built for drivers who want precise ignition performance and OE-style reliability. This spark plug uses an iridium center electrode, a nickel ground electrode, and a 5,000-ohm resistor to support stable spark delivery across a wide range of import and domestic applications.

Compatible With select Audi, Volkswagen, Chevrolet, Buick, Porsche, and Aston Martin applications, including Audi A4, Audi Q5, Volkswagen GTI, Chevrolet Cruze, and Buick Encore fitments. The NGK BKR7EIX part number 2667 is a direct-reference spark plug for many turbocharged and performance-oriented engines that call for a flat seat, 14 mm thread, and 0.75-inch reach.

Key Features

• Iridium center electrode tip for consistent ignition performance
• Copper core center electrode for efficient heat transfer
• Nickel ground electrode with taper-cut tip design
• 5,000-ohm resistor helps control electrical noise
• Pre-gapped at 0.032 inches, with application-specific gap adjustment required on some vehicles
• Flat seat, 14 mm thread diameter, 5/8 hex size, and 0.75-inch reach
• NGK heat range 7 for a broad range of OE-style applications

Product Details

NGK’s Iridium IX line is known for fine-wire iridium construction and OE-focused engineering. Part number 2667, also identified as BKR7EIX, is designed for engines that require a spark plug with a 0.032-inch pre-gap, non-removable nut terminal, and standard single-ground configuration. NGK’s long history as an OE supplier in North America supports its reputation for consistent manufacturing and broad vehicle coverage.

This part cross-references DENSO Auto Parts 5310 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 plug wear or incorrect gap
• Reduced throttle response from degraded ignition performance
• Maintenance intervals due to aging factory spark plugs

Installation Notes and Tips

Verify the vehicle-specific gap before installation. Some listed applications require adjustment to 0.027 inches, 0.030 inches, or 0.025 inches, while others use the 0.032-inch pre-gap as supplied. Confirm thread diameter, reach, seat type, and heat range against the engine specification before installation. For best results, install on a cool engine and torque to the manufacturer’s specification.

Quality Assurance

NGK manufactures spark plugs for domestic and import vehicles, motorcycles, marine engines, and small engines, with OE-level standards and global distribution support. Part number 2667 is built to the specifications expected from NGK’s ignition product line for dependable service in approved applications.

Fits 2013-2021 Buick Encore, N/A; 2013-2021 Chevrolet Trax, N/A; 2012-2020 Chevrolet Sonic, N/A; 2015-2018 Audi Q3, N/A; 2015-2018 Audi Q3 Quattro, N/A; 2017-2018 Volkswagen Tiguan Limited, N/A; 2010-2017 Audi A5 Quattro, N/A; 2011-2017 Audi Q5, N/A; 2017 Audi R8, N/A; 2014-2015 Audi R8, N/A; 2011-2012 Audi R8, N/A; 2009-2017 Volkswagen CC, N/A; 2009-2017 Volkswagen Tiguan, N/A; 2005-2016 Audi A4, N/A; 2013-2016 Audi A4 allroad, N/A; 2005-2016 Audi A4 Quattro, N/A; 2016 Chevrolet Cruze Limited, N/A; 2007-2016 Volkswagen Eos, N/A; 2012-2015 Audi A6, N/A; 2013-2015 Audi A6 Quattro, N/A; 2013-2015 Audi allroad, N/A; 2013-2015 Audi RS5, N/A; 2009-2015 Audi TT Quattro, N/A; 2009-2015 Audi TTS Quattro, N/A; 2011-2015 Chevrolet Cruze, N/A; 2010-2014 Audi A5, N/A; 2006-2014 Volkswagen GTI, N/A; 2006-2013 Audi A3, N/A; 2009-2013 Audi A3 Quattro, N/A; 2012-2013 Volkswagen Beetle, N/A; 2013 Volkswagen Golf, N/A; 2012-2013 Volkswagen Golf R, N/A; 2012-2013 Volkswagen Jetta, N/A; 2006-2010 Volkswagen Jetta, N/A; 2006-2010 Volkswagen Passat, N/A; 1992-1994 Volkswagen Passat, N/A; 2009-2010 Volkswagen Passat CC, N/A; 2008-2009 Audi TT, N/A; 2003-2008 Porsche 911, N/A; 2005-2008 Porsche Boxster, N/A; 2006-2008 Porsche Cayman, N/A; 2003-2006 Porsche Cayenne, N/A; 2003-2004 Audi RS6, N/A; 1997-1998 Aston Martin DB7, N/A; 1995-1997 Audi S6, N/A; 1992-1994 Audi S4, N/A; 1991 Audi 200 Quattro, N/A.