NGK 6334 Spark Plug

NGK V-Power Spark Plug for Jeep Applications

NGK V-Power Spark Plug 6334 is an OE-style replacement spark plug built for steady ignition performance and reliable combustion. It is listed for select 1978-1980 Jeep Cherokee, CJ5, CJ7, and J10 applications, making it a direct-fit option for classic Jeep tune-up service.

Key Features

• NGK V-Power Spark Plug, part number 6334
• V-Power design with a standard ground electrode tip and standard ground configuration
• Copper center electrode core with nickel center electrode tip material
• Nickel ground electrode core material for consistent spark delivery
• 0.036 in pre-gap size, 14.00 mm thread diameter, 0.75 in reach, and flat seat type
• 5000 ohm resistance and non-removable nut terminal type
• Manufacturer heat range 5 with 13/16 hex size

Product Details

NGK 6334 is part of the V-Power Spark Plug line, a conventional ignition service option focused on OE-equivalent fit and dependable operation. The plug uses a copper core center electrode and nickel electrode materials to support stable spark transfer, while the standard electrode layout and flat seat design match the requirements of the listed Jeep applications. For buyers searching for an NGK 6334 spark plug for Jeep Cherokee, CJ5, CJ7, or J10, this part provides a straightforward replacement choice for routine ignition maintenance.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Can Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from inconsistent ignition output
• Misfire symptoms related to aged plug electrodes
• Reduced throttle response from weak spark delivery
• Maintenance replacement for tune-up intervals on classic Jeep engines

Installation Notes and Tips

Verify the listed application before installation and confirm the plug gap matches engine requirements. The pre-gap size is 0.036 in, and the fitment notes reference a 0.035 in gap for the listed Jeep Cherokee, CJ5, CJ7, and J10 applications. Inspect ignition wires, distributor components, and coil condition during service to help maintain consistent ignition performance. Thread by hand first to avoid cross-threading, then tighten to the vehicle manufacturer’s specification.

Quality Assurance

NGK is a long-established OE supplier and spark plug manufacturer with broad coverage across automotive applications. Part number 6334 is built to original-equipment standards for durability and operational performance in the listed Jeep fitments.

Compatible Vehicles

• Fits 1978-1980 Jeep Cherokee, N/A; OE equivalent spark plug with a 0.035" gap; V-Power Spark Plug
• Fits 1978-1980 Jeep CJ5, N/A; OE equivalent spark plug with a 0.035" gap; V-Power Spark Plug
• Fits 1978-1980 Jeep CJ7, N/A; OE equivalent spark plug with a 0.035" gap; V-Power Spark Plug
• Fits 1978-1980 Jeep J10, N/A; OE equivalent spark plug with a 0.035" gap; V-Power Spark Plug