NGK 4764 Spark Plug

NGK Laser Platinum Spark Plug Overview

The NGK Laser Platinum Spark Plug 4764 is engineered for reliable ignition performance in Mazda RX-7 vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Part Number: 4764 (Bur7eqp)
• Compatible with Mazda RX-7 models
• Center electrode made of copper core with platinum tip
• Surface discharge ground electrode design with nickel core
• Resistance rating of 5000 ohms for noise suppression
• Pre-gap size of 0.056 inches for optimal spark
• Flat seat type with 14mm thread diameter and 21.5mm reach
• Hex size of 13/16 inches for installation
• Non-removable nut electrical terminal
• Manufacturer heat range rating of 7
• Insulator height of 67.00 mm

About the NGK Laser Platinum Spark Plug Line

The Laser Platinum Spark Plug line from NGK features platinum-tipped center electrodes that enhance durability and maintain stable ignition over time. This technology reduces electrode wear and supports consistent spark performance, which is critical for vehicles like the Mazda RX-7 that demand precise ignition timing and efficiency.

Technical Details and Features

This NGK spark plug incorporates a copper core center electrode with a platinum tip, improving thermal conductivity and electrode longevity. The ground electrode uses a surface discharge design with a nickel core, which helps maintain a stable spark gap and reduces fouling. The 5000 ohm resistance rating minimizes electrical interference with vehicle electronics. The flat seat and 14mm thread diameter ensure proper fitment and sealing in the combustion chamber. With a pre-gap of 0.056 inches and a heat range of 7, this spark plug is optimized for the operating conditions of the Mazda RX-7 engine.

Applications and Problem Solving

• Restores consistent ignition performance in Mazda RX-7 engines
• Reduces misfires caused by electrode wear or fouling
• Minimizes radio frequency interference with vehicle electronics
• Improves fuel efficiency through stable combustion
• Supports smooth engine start and idle stability

Installation Notes and Tips

When installing the NGK Laser Platinum Spark Plug 4764, ensure the spark plug gap is set to the specified pre-gap of 0.056 inches if adjustment is necessary. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended torque to avoid damage to the flat seat or threads. The 13/16 inch hex size allows for standard spark plug socket compatibility. Always inspect the spark plug threads and combustion chamber for debris before installation.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Laser Platinum Spark Plug 4764 undergoes rigorous testing for heat range accuracy and material integrity. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support long-term use in Mazda RX-7 vehicles.