NGK 372 Spark Plug

NGK Iridium IX Spark Plug Overview

The NGK Iridium IX Spark Plug part number 372 is engineered for reliable ignition performance in select Ford, Lincoln, and Mercury 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
• 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
• Pre-gap size of 0.044 inches for precise spark gap
• Tapered seat type and 12mm thread diameter for secure fit
• Compatible with Ford Expedition, Explorer, F-150, F-250 Super Duty, F-350 Super Duty, Lincoln Navigator, and more

Detailed Product Features and Specifications

The NGK Iridium IX Spark Plug 372 features a copper core center electrode with an iridium tip, which provides a balance of excellent electrical conductivity and wear resistance. The taper cut ground electrode tip design enhances spark exposure, contributing to more efficient combustion. The ground electrode is made from nickel, maintaining durability under high temperatures. This spark plug has a pre-gap size of 0.044 inches and a single ground electrode, ensuring consistent ignition performance. The non-removable nut electrical terminal type simplifies installation and reduces maintenance concerns. With a 14mm hex size and 26.5mm reach, it fits securely in the engine cylinder head with a tapered seat type and 12mm thread diameter.

About the Iridium IX Spark Plug Line

The Iridium IX Spark Plug line from NGK is designed to provide enhanced ignition performance and durability through the use of iridium-tipped center electrodes. This technology allows for a finer electrode that requires less voltage to produce a strong spark, improving combustion efficiency. The 372 part number is part of this line, offering a combination of iridium and copper materials to meet the demands of secondary ignition systems in select Ford, Lincoln, and Mercury models.

Compatible Vehicles and Common Applications

• Ford Expedition
• Ford Explorer and Explorer Sport Trac
• Ford F-150, F-250 Super Duty, F-350 Super Duty
• Lincoln Navigator and Mark LT
• Mercury Mountaineer

This spark plug is suitable for addressing issues such as misfires, rough idling, poor fuel economy, hard starting, and reduced engine power in these vehicles.

Installation Notes and Tips

• Ensure the spark plug gap is set to 0.044 inches before installation if not pre-gapped
• Use a torque wrench to tighten to manufacturer specifications to avoid damage
• Inspect the spark plug threads and cylinder head for debris before installation
• Replace spark plugs in sets to maintain consistent engine performance

Quality Assurance and Warranty

NGK spark plugs, including the Iridium IX 372, are manufactured to meet strict quality standards for durability and performance. While specific warranty details may vary, NGK products typically come with a limited warranty against manufacturing defects. Always consult vehicle and product documentation for warranty coverage and installation guidelines.