NGK 4306 Spark Plug

NGK V-Power Spark Plug 4306 Overview

NGK V-Power Spark Plug 4306 is a tapered-seat spark plug built for select Chrysler, Dodge, and Jeep applications that call for a 14 mm thread, 5/8 hex, and a 0.052 in pre-gap. It uses a copper center electrode core with nickel tip materials and a standard single-ground configuration for consistent ignition performance.

The V-Power Spark Plug line focuses on OE-style fit and dependable operation across a wide range of domestic and import vehicles. For drivers searching for an NGK spark plug for Chrysler PT Cruiser, Dodge Charger, or Jeep Grand Cherokee service, part number 4306 provides a direct replacement option with application-specific gap requirements.

Key Features

• NGK V-Power Spark Plug line for OE-style secondary ignition service
• Part number 4306 / LZTR5A-13
• 0.052 in pre-gap size with 5000 ohm resistance
• Copper center electrode core with nickel center and ground electrode tips
• Standard ground electrode design with one ground electrode
• Tapered seat, 14 mm thread diameter, 5/8 hex size
• Non-removable nut terminal for secure ignition connection
• Manufacturer heat range 5

Detailed Description

NGK 4306 is engineered for vehicles that specify a tapered-seat spark plug with OE-equivalent dimensions and service intervals. The plug’s copper core helps support stable heat transfer, while the nickel electrode materials and standard ground configuration are selected for everyday ignition service. This makes it a practical choice for routine maintenance on Chrysler 300, Dodge Magnum, and Jeep Wrangler applications that list this NGK part number.

NGK’s long OE supply history and North American manufacturing footprint support consistent product standards across passenger car, light truck, motorcycle, marine, and small engine ignition products. This part cross-references Champion Spark Plug 470 and AP Exhaust 7570 for the same application.

Vehicle Fitment

• Fits 2003-2009 Chrysler PT Cruiser, N/A; gap 0.050"; OE equivalent design; 30,000-mile OE manufacturer recommended service interval.
• Fits 2005-2008 Chrysler 300, N/A; twin spark system; gap 0.052".
• Fits 2007-2008 Chrysler 300, N/A; set spark plug gap to 0.050 inches.
• Fits 2005-2008 Chrysler Pacifica, N/A; set spark plug gap to 0.050 inches.
• Fits 2007-2008 Chrysler Sebring, N/A; gap 0.050"; OE equivalent design; 30,000-mile OE manufacturer recommended service interval.
• Fits 2001-2008 Chrysler Town & Country, N/A; set spark plug gap to 0.050 inches.
• Fits 2008 Dodge Avenger, N/A; gap 0.050"; OE equivalent design; 30,000-mile OE manufacturer recommended service interval.
• Fits 2008 Dodge Challenger, N/A; twin spark system; gap 0.052".
• Fits 2006-2008 Dodge Charger, N/A; twin spark system; gap 0.052".
• Fits 2006-2008 Dodge Charger, N/A; set spark plug gap to 0.050 inches.
• Fits 2001-2008 Dodge Grand Caravan, N/A; set spark plug gap to 0.050 inches.
• Fits 2006-2008 Dodge Magnum, N/A; twin spark system; gap 0.052".
• Fits 2006-2008 Dodge Magnum, N/A; set spark plug gap to 0.050 inches.
• Fits 2008 Dodge Viper, N/A; set spark plug gap to 0.050 inches.
• Fits 2006-2008 Jeep Grand Cherokee, N/A; twin spark system; gap 0.052".
• Fits 2007-2008 Jeep Wrangler, N/A; set spark plug gap to 0.050 inches.
• Fits 2001-2007 Dodge Caravan, N/A; set spark plug gap to 0.050 inches.
• Fits 2005-2006 Chrysler 300, N/A; spark plug gap size is 0.052 inches.
• Fits 2003-2006 Chrysler Sebring, N/A; gap 0.052"; OE Equivalent Design; 30,000 mi OE Mfr Recommended Service Interval.
• Fits 2003-2006 Dodge Stratus, N/A; gap 0.050"; OE equivalent design; 30,000-mile OE manufacturer recommended service interval.
• Fits 2005 Dodge Magnum, N/A; spark plug gap size is 0.052 inches.
• Fits 2003-2005 Dodge Neon, N/A; gap 0.052"; OE Equivalent Design; 30,000 mi OE Mfr Recommended Service Interval.
• Fits 1998-2004 Chrysler Concorde, N/A; set spark plug gap to 0.050 inches.
• Fits 1998-2004 Chrysler Intrepid, N/A; set spark plug gap to 0.050 inches.
• Fits 1998-2004 Dodge Intrepid, N/A; set spark plug gap to 0.050 inches.
• Fits 2001-2003 Chrysler Voyager, N/A; set spark plug gap to 0.050 inches.
• Fits 2001-2002 Chrysler Sebring, N/A; spark plug gap size is 0.052 inches.
• Fits 2001-2002 Chrysler Voyager, N/A; spark plug gap size is 0.052 inches.
• Fits 2001-2002 Dodge Stratus, N/A; set spark plug gap to 0.050 inches.

Common Issues This Plug Can Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from inconsistent ignition firing
• Misfire conditions related to incorrect plug wear or gap
• Reduced throttle response from degraded spark delivery
• Service replacement needs for OE-style Chrysler, Dodge, and Jeep ignition systems

Installation Notes and Tips

Verify the engine’s specified gap before installation, since listed applications call for either 0.050 in or 0.052 in depending on model and year. Use the correct tapered-seat torque procedure and confirm the plug matches the vehicle’s ignition system requirements before final assembly. For Chrysler PT Cruiser, Dodge Charger, and Jeep Grand Cherokee applications, follow the vehicle-specific service information to confirm the correct gap and heat range.

Quality Assurance

NGK is a major OE spark plug supplier with more than 80 years of automotive ignition experience. Part number 4306 is produced to support original-equipment standards for durability and operational performance across the listed applications.