NGK 3764 Spark Plug

NGK Iridium IX Spark Plug Overview

The NGK Iridium IX Spark Plug (Part Number 3764) is engineered for reliable ignition performance across a wide range of vehicles including Acura, Honda, Toyota, and Ford models. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability and ignition
• Taper cut ground electrode tip design for improved spark exposure
• Copper core center electrode for optimal conductivity
• Standard ground configuration with nickel ground electrode core
• Non-removable nut electrical terminal type for secure connection
• Pre-gap size of 0.044 inches for precise spark gap
• Flat seat type with 14mm thread diameter and 0.75 inch reach
• Hex size of 5/8 inch for standard installation tools
• Manufacturer heat range rating of 6 for balanced heat dissipation

Iridium IX Spark Plug Product Line Details

The NGK Iridium IX Spark Plug line is designed to provide enhanced ignition performance and longer service life compared to conventional spark plugs. Featuring an iridium center electrode tip, these plugs offer improved wear resistance and stable spark delivery. The combination of a copper core center electrode and taper cut ground electrode tip optimizes electrical conductivity and combustion efficiency, making it suitable for a variety of vehicles such as the Toyota Camry, Honda Civic, and Ford Ranger.

Technical Description and Compatibility

This spark plug (Part Number Bkr6eix-11) incorporates a single ground electrode with a taper cut design, which increases the spark exposure area and promotes better ignition. The nickel ground electrode core provides durability, while the copper core center electrode ensures excellent heat transfer and electrical conductivity. The iridium tip on the center electrode enhances electrode life and ignition reliability. With a flat seat and a 14mm thread diameter, this spark plug fits many popular models including the Subaru Outback, Lexus RX330, and Nissan Maxima.

Applications and Problem Solving

• Restores engine misfire issues caused by worn or fouled spark plugs
• Improves cold start performance in vehicles like the Acura TL and Mazda Miata
• Enhances fuel efficiency by ensuring consistent combustion
• Reduces rough idling and hesitation in models such as the Jeep Grand Cherokee and Audi A4 Quattro
• Supports stable engine performance under various driving conditions

Installation Notes and Tips

When installing the NGK Iridium IX Spark Plug 3764, ensure the pre-gap size of 0.044 inches is maintained for optimal spark performance. Use a 5/8 inch socket wrench to tighten the spark plug to the manufacturer’s recommended torque specifications. The non-removable nut electrical terminal type requires a secure connection to the ignition wire. This spark plug is compatible with flat seat cylinder heads and requires a reach of 0.75 inches. Always inspect the cylinder head threads before installation to avoid cross-threading.

Quality Assurance and Warranty

NGK spark plugs are manufactured to strict quality standards to ensure consistent performance and durability. The Iridium IX Spark Plug line undergoes rigorous testing for heat range, electrode wear, and electrical resistance, with this model featuring a resistance rating of 5000 ohms. While specific warranty details may vary, NGK typically offers coverage against manufacturing defects. Refer to NGK’s official documentation for complete warranty information.