NGK 4363 Spark Plug

NGK Laser Platinum Spark Plug 4363

NGK Laser Platinum Spark Plug 4363 is built for direct-fit ignition service on a wide range of import and domestic vehicles. It features a platinum center electrode, copper core, nickel ground electrode, and a 0.044 in. pre-gap for OE-style replacement service.

Key Features

• Laser Platinum design with platinum center electrode tip for stable ignition performance
• Copper core center electrode for efficient heat transfer
• Nickel ground electrode with standard tip and standard configuration
• 0.044 in. pre-gap and 5 k? resistance
• 14 mm thread diameter, 0.75 in. reach, flat seat, 5/8 in. hex
• NGK part number PZFR5F-11, stock number 4363

Product Details

NGK 4363 is part of the Laser Platinum spark plug line, a product family focused on OE-style ignition service with durable electrode materials and consistent gap control. NGK’s manufacturing background as a major OE supplier supports applications that demand accurate fitment and dependable operation across everyday driving conditions. This spark plug is listed for vehicles such as the Honda Accord, Honda Civic, Honda Odyssey, Acura TL, Jeep Grand Cherokee, and Dodge Ram 1500, with application-specific gap notes that should be followed during service.

This part cross-references Autolite APP5224 for the same application.

What It Helps Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from inconsistent spark delivery
• Misfire codes related to plug wear or incorrect gap
• Reduced throttle response from degraded ignition performance
• Service intervals on vehicles calling for platinum spark plug replacement

Installation Notes

• Verify vehicle-specific fitment before installation.
• Set the spark plug gap to the value listed for the application; many listings call for 0.044 in., while some require 0.040 in. or 0.045 in.
• Use the correct torque procedure for the cylinder head material and plug seat type.
• Inspect ignition coils, boots, and wires during spark plug service.
• Confirm the plug matches the engine’s thread diameter, reach, and seat type before installation.

Quality Assurance

NGK is a long-established OE supplier with broad coverage across domestic and import vehicle platforms. The 4363 spark plug is manufactured to support original-equipment standards for durability and operational performance.