NGK 90656 Spark Plug

NGK Laser Iridium Spark Plug Overview

The NGK Laser Iridium Spark Plug 90656 is engineered for reliable ignition performance in Ford Focus vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability
• Copper core center electrode for improved conductivity
• Standard ground electrode with nickel core material
• Non-removable nut electrical terminal type
• Pre-gap size of 0.036 inches for optimal spark
• Tapered seat type with 14mm thread diameter and 25mm reach
• Hex size of 5/8 inch for easy installation
• Manufacturer heat range rating of 6
• Resistance value of 5000 ohms to reduce electrical noise

About the NGK Laser Iridium Spark Plug Line

The Laser Iridium Spark Plug line by NGK combines iridium-tipped electrodes with copper core technology to balance longevity and electrical performance. This product line is designed to provide stable ignition and improved fuel efficiency, making it suitable for secondary ignition systems in vehicles like the Ford Focus. The iridium tip offers wear resistance while the copper core enhances heat dissipation.

Technical Details and Specifications

This NGK spark plug features a single ground electrode with a standard tip design made from nickel, ensuring consistent spark delivery. The center electrode uses a copper core for excellent electrical conductivity, topped with an iridium tip to withstand high temperatures and reduce electrode wear. The spark plug has a pre-gap size of 0.036 inches, a tapered seat for secure fitment, and a thread diameter of 14mm with a 25mm reach, matching OEM specifications for the Ford Focus. The non-removable nut terminal type simplifies connection, and the 5/8 inch hex size allows for straightforward installation with common tools.

Compatible Vehicles and Applications

• Compatible with Ford Focus models requiring part number 90656
• Designed for secondary ignition systems in gasoline engines
• Suitable for addressing ignition misfires and poor fuel economy
• Helps resolve rough idling and hard starting issues
• Supports stable engine performance under various driving conditions

Installation Notes and Tips

When installing the NGK Laser Iridium Spark Plug 90656, ensure the engine is cool to prevent damage to the threads. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid over-tightening or under-tightening. Verify the pre-gap size of 0.036 inches before installation, although the plug comes pre-gapped. The 5/8 inch hex size fits standard spark plug sockets, facilitating straightforward replacement in the Ford Focus ignition system.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable ignition performance and durability. The Laser Iridium Spark Plug 90656 undergoes rigorous testing for heat range, electrode wear, and electrical resistance. While specific warranty details are not provided here, NGK typically offers coverage against manufacturing defects. Refer to NGK’s official documentation for warranty terms applicable to this part.