NGK 5306 Spark Plug

NGK V-Power Spark Plug 5306 Overview

NGK V-Power Spark Plug 5306 is an OE-style replacement spark plug built for Chrysler, Dodge, and Jeep applications that call for a 0.044 in. gap and a tapered seat. It uses a copper center electrode core with nickel tip materials and a standard ground electrode design for consistent ignition performance in everyday driving.

The NGK V-Power Spark Plug line is known for OE-focused construction and broad vehicle coverage. Part number 5306, also identified as LZTR4A-11, is specified for many 2001-2010 Chrysler PT Cruiser, 300, Aspen, Sebring, Voyager, Dodge Charger, Durango, Magnum, Caravan, Ram 1500/2500/3500, and Jeep Commander, Grand Cherokee, Liberty, TJ, and Wrangler applications.

Key Features

• NGK V-Power Spark Plug, part number 5306
• 0.044 in. pre-gap size for listed OE applications
• Copper center electrode core with nickel center electrode tip
• Nickel ground electrode tip with standard ground configuration
• 5,000 ohm resistance
• Tapered seat, 14 mm thread diameter, 5/8 in. hex size
• OE-equivalent design for listed Chrysler, Dodge, and Jeep vehicles

Detailed Description

NGK 5306 is a secondary ignition spark plug engineered to match the specifications used in many Chrysler, Dodge, and Jeep engines. The tapered seat, 25.00 mm reach, and 0.044 in. pre-gap support direct OE-style replacement on vehicles such as the 2005-2008 Chrysler 300, 2006-2008 Dodge Charger, 2003-2008 Dodge Ram 1500, and 2005-2008 Jeep Grand Cherokee. The copper core and nickel electrode materials are selected for stable spark delivery and dependable service in standard ignition systems.

This part cross-references DENSO Auto Parts 5306 for the same application.

What It Helps Address

• Rough idle caused by worn spark plug electrodes
• Hard starting from weakened ignition output
• Misfire conditions tied to incorrect plug gap or wear
• Reduced throttle response from inconsistent spark delivery
• Service replacement needs at the OEM-recommended interval

Installation Notes and Tips

• Verify the engine calls for a tapered-seat plug with a 0.044 in. gap before installation.
• Check the vehicle application carefully, especially on twin spark system models.
• Use the listed part number 5306 or LZTR4A-11 when confirming interchange.
• Follow the manufacturer’s service interval and torque specifications for the engine.
• Inspect ignition coils, wires, and related components during spark plug service.

Quality Assurance

NGK is a long-established OE supplier and manufacturer with North American and global production and distribution support. The brand’s OE legacy and application coverage make NGK 5306 a practical choice for drivers maintaining factory-style ignition performance in Chrysler, Dodge, and Jeep vehicles.