NGK 90117 Spark Plug

Reliable Ignition Performance for Select GM and Ford Vehicles

The NGK Laser Iridium Spark Plug 90117 is engineered to deliver consistent ignition performance for a range of vehicles including Buick, Cadillac, Chevrolet, Ford, GMC, Mazda, Pontiac, Saab, and Saturn models. Designed with precision materials and specifications, this spark plug supports efficient combustion and engine reliability.

• Iridium center electrode tip for enhanced durability and ignition
• Copper core center electrode for improved conductivity
• Standard ground electrode with nickel core material
• Non-removable nut electrical terminal type for secure connection
• Pre-gap size of 0.044 inches optimized for ignition efficiency
• Tapered seat type ensuring proper fit and sealing
• Thread diameter of 14 mm and reach of 25 mm for compatible engine fitment
• Hex size of 5/8 inch for standard installation tools
• Manufacturer heat range rating of 6 suitable for specified vehicle applications

About the NGK Laser Iridium Spark Plug Line

The Laser Iridium Spark Plug line from NGK combines iridium's high melting point and fine electrode design to provide stable ignition and longer service life. This product line focuses on delivering precise spark timing and improved fuel efficiency, making it suitable for modern engines requiring reliable secondary ignition components. The 90117 part number is a specific fitment within this line, tailored to meet the ignition needs of various GM and Ford vehicles.

Technical Details and Compatibility

The NGK 90117 spark plug features a single ground electrode with a standard tip design made from nickel, paired with a copper core center electrode tipped with iridium. This combination balances conductivity and durability, supporting consistent spark delivery. The non-removable nut terminal type ensures a secure electrical connection, while the tapered seat and 14 mm thread diameter provide a precise fit for compatible engines. With a pre-gap of 0.044 inches and a heat range of 6, this spark plug is engineered to maintain optimal combustion conditions in vehicles such as the Chevrolet Camaro, Ford F-150, Buick LaCrosse, and Cadillac CTS.

Common Applications and Problem Solving

• Restores engine misfire issues caused by worn or fouled spark plugs
• Improves cold start performance in Buick, Chevrolet, and Ford models
• Enhances fuel efficiency by ensuring consistent ignition timing
• Reduces rough idling and hesitation during acceleration
• Supports stable combustion in vehicles with secondary ignition system requirements

Installation Notes and Tips

When installing the NGK Laser Iridium Spark Plug 90117, 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. The 5/8 inch hex size allows for compatibility with standard spark plug sockets. Verify the pre-gap size of 0.044 inches before installation, adjusting if necessary to match vehicle specifications. This spark plug is compatible with a range of models including the GMC Terrain, Mazda CX-9, and Saturn Vue.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Laser Iridium Spark Plug 90117 undergoes rigorous testing for heat resistance and electrical conductivity. While specific warranty details may vary, NGK typically offers coverage against manufacturing defects, supporting confidence in product longevity and function.