NGK 2314 Spark Plug

NGK Iridium IX Spark Plug 2314

NGK Iridium IX spark plug 2314 is built for drivers who need precise ignition performance and OE-style reliability. With an iridium center electrode, nickel ground electrode, and a 5,000-ohm resistor, this plug supports consistent spark delivery in a wide range of Chrysler, Dodge, Jeep, and Volkswagen applications.

The Iridium IX line focuses on durable electrode construction and stable combustion performance. For vehicles such as the Dodge Charger, Chrysler 300, and Jeep Wrangler, NGK 2314 is a direct-fit ignition service part for engines that call for a tapered-seat plug with a 14 mm thread and 0.052-inch pre-gap.

Key Features

• Iridium center electrode tip for durable spark performance
• Copper center electrode core for efficient heat transfer
• Nickel ground electrode with standard configuration
• 5,000-ohm resistor for ignition noise suppression
• Tapered seat design with 14 mm thread diameter
• Pre-gapped at 0.052 inches
• 5/8 hex size for standard service tools
• NGK part number 2314, also listed as LZTR5AIX-13

Detailed Description

NGK 2314 is an Iridium IX spark plug engineered for engines that require a tapered-seat plug with a 25.00 mm reach and heat range 5. The tapered-cut ground electrode tip and single-ground configuration support consistent flame initiation, while the iridium tip material helps maintain stable performance over extended service intervals. This plug is used across many late-model and earlier Chrysler, Dodge, and Jeep platforms, including the Dodge Viper, Dodge Charger, Chrysler 300, and Jeep Wrangler.

This part cross-references DENSO Auto Parts 5349 for the same application.

What It Helps Address

• Rough idle caused by worn spark plug electrodes
• Hard starting from weak or inconsistent ignition output
• Misfire conditions related to plug wear or incorrect gap
• Reduced throttle response from degraded spark quality
• Service issues on vehicles requiring a tapered-seat iridium plug

Installation Notes and Tips

Verify engine application before installation and confirm the required gap for your vehicle. Fitment notes call for 0.050-inch gap on many applications and 0.052-inch gap on others, including twin-spark configurations. Use the correct torque procedure for tapered-seat plugs and inspect coil boots, wires, and ignition components during service. Compatible With 2005-2010 Chrysler 300, 2006-2010 Dodge Charger, and 2007-2011 Jeep Wrangler applications listed in the fitment data.

• Fits 2015-2017 Dodge Viper, N/A
• Fits 2008-2010 Dodge Viper, N/A
• Fits 2007-2011 Jeep Wrangler, N/A
• Fits 2005-2010 Chrysler 300, N/A
• Fits 2007-2010 Chrysler 300, N/A
• Fits 2007-2010 Chrysler Sebring, N/A
• Fits 2001-2010 Chrysler Town & Country, N/A
• Fits 2008-2010 Dodge Avenger, N/A
• Fits 2008-2010 Dodge Challenger, N/A
• Fits 2006-2010 Dodge Charger, N/A
• Fits 2001-2010 Dodge Grand Caravan, N/A
• Fits 2006-2010 Jeep Grand Cherokee, N/A
• Fits 2009-2010 Volkswagen Routan, N/A
• Fits 2003-2009 Chrysler PT Cruiser, N/A
• Fits 2005-2008 Chrysler Pacifica, N/A
• Fits 2006-2008 Dodge Magnum, N/A
• Fits 2001-2007 Dodge Caravan, N/A
• Fits 2001-2006 Chrysler Sebring, N/A
• Fits 2001-2006 Dodge Stratus, N/A
• Fits 1998-2004 Chrysler Concorde, N/A
• Fits 1998-2004 Chrysler Intrepid, N/A
• Fits 1998-2004 Dodge Intrepid, N/A
• Fits 2001-2003 Chrysler Voyager, N/A

Quality Assurance

NGK is a long-established OE supplier and manufacturer with broad coverage across domestic and import vehicles, motorcycles, marine engines, and small engines. Its North American and global manufacturing and distribution network supports consistent product availability and OE-level production standards.