NGK 4268 Spark Plug

NGK V-Power Spark Plug 4268

NGK V-Power Spark Plug 4268 is an OE-style replacement spark plug built for steady ignition performance in a wide range of domestic applications. It uses a copper core center electrode, nickel center and ground electrode tips, and a standard ground configuration to support consistent spark delivery and reliable combustion.

The V-Power line is designed around NGK’s long-standing OE manufacturing background, with coverage that includes Chrysler, Dodge, Plymouth, Pontiac, Cadillac, Buick, and Oldsmobile applications. For vehicles such as the Dodge Caravan, Chrysler Town & Country, and Plymouth Voyager, this plug is a direct service option when the specified gap and heat range match the engine requirements.

Key Features

• NGK V-Power Spark Plug, part number 4268
• Copper core center electrode for stable thermal transfer
• Nickel center and ground electrode tip materials
• Standard ground electrode design with one ground electrode
• 5000 ohm resistance
• Flat seat, 14 mm thread diameter, 13/16 hex size
• Pre-gapped at .060 inches; some listed applications require a 0.050 inch gap adjustment
• OE-equivalent design for many Chrysler, Dodge, Plymouth, Pontiac, Cadillac, Buick, and Oldsmobile vehicles

Detailed Description

NGK 4268 is a V-Power spark plug engineered for dependable ignition service in secondary ignition systems. The copper core helps manage heat, while the nickel electrode materials support consistent wear characteristics in everyday driving. With a flat seat, .75 reach, and standard ground configuration, this plug follows common OE-style dimensions used across many older domestic engines.

Fitment includes 2000 Chrysler Grand Voyager, 1998-2000 Dodge Caravan, 1995-2000 Chrysler Town & Country, and 1991-1996 Plymouth Voyager, along with additional Chrysler, Dodge, Plymouth, Pontiac, Cadillac, Buick, and Oldsmobile models listed in the application data. This part cross-references Autolite 646 and Champion Spark Plug 31 for the same application.

What This Spark Plug Helps Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from weak or inconsistent spark output
• Misfire conditions related to aged secondary ignition components
• Reduced fuel economy from incomplete combustion
• Loss of throttle response in high-mileage ignition systems

Installation Notes and Tips

Verify engine application before installation and confirm the specified gap for your vehicle. The listed applications include both .060-inch and 0.050-inch gap requirements, so set the gap to the vehicle specification before installing the plug. Use the correct torque procedure for the cylinder head material and inspect plug wires or coil boots during service.

Compatible With 2000 Chrysler Grand Voyager, 1998-2000 Dodge Caravan, 1995-2000 Chrysler Town & Country, and other listed fitments including 1993-1997 Chrysler Intrepid, 1988-1993 Pontiac LeMans, and 1975-1984 Cadillac Fleetwood.

Quality Assurance

NGK is a major OE spark plug supplier with more than 80 years of automotive manufacturing experience. The brand’s OE-focused production standards and North American distribution support consistent product quality for service replacement applications.