Denso 5016 Spark Plug

Reliable Ignition Performance for Acura, Honda, Nissan, and More

The Denso 5016 spark plug from the U-Groove Conventional line offers dependable ignition for a variety of vehicles including Acura Integra, Honda Prelude, Nissan 200SX, and Pontiac Firebird. Designed with precision materials and a unique U-groove ground electrode tip, this spark plug supports consistent engine performance and efficient combustion.

• U-groove ground electrode tip design for improved spark exposure
• Nickel ground electrode core and tip for durability
• Copper center electrode core with nickel tip for optimal conductivity
• Standard ground configuration with a single ground electrode
• Flat seat type with 14.00 mm thread diameter and 19.00 mm reach
• Pre-gap size of 1.1 mm for precise ignition timing
• Hex size of 16.0 mm for easy installation
• Manufacturer heat range of 16 suitable for various driving conditions

About the Denso U-Groove Conventional Spark Plug Line

The U-Groove Conventional spark plug line by Denso features a distinctive U-shaped groove on the ground electrode tip. This design enhances spark exposure to the air-fuel mixture, promoting more efficient combustion and stable ignition. The conventional construction balances performance and durability, making it suitable for a wide range of secondary ignition applications in vehicles like the Honda CRX, Nissan Sentra, and Saturn SL2.

Technical Details and Material Composition

The Denso 5016 spark plug incorporates a copper core center electrode with a nickel tip, providing excellent thermal conductivity and reliable spark generation. The ground electrode is made from nickel with a U-groove tip, which improves spark efficiency by increasing the spark gap surface area. The flat seat design ensures a secure fit in the cylinder head, while the 14.00 mm thread diameter and 19.00 mm reach match OEM specifications for compatible models. The pre-gap size of 1.1 mm is factory set to optimize ignition timing and combustion efficiency.

Compatible Vehicles and Common Applications

• Acura Integra and Prelude models requiring secondary ignition spark plugs
• Honda CRX and Civic models with compatible ignition systems
• Nissan 200SX, Sentra, and Pulsar NX vehicles
• Pontiac Firebird and Grand Am with specified ignition requirements
• Saturn SL, SL1, and SL2 models needing reliable spark plugs

Installation Notes and Tips

• Verify thread size and reach to ensure compatibility with your engine
• Use a 16 mm socket wrench for proper torque application
• Check and adjust spark plug gap if necessary before installation
• Apply anti-seize compound on threads to prevent galling
• Follow manufacturer torque specifications to avoid damage

Quality Assurance and Warranty Information

Denso spark plugs, including the 5016 part number, are manufactured to meet strict OEM standards for fit, form, and function. The use of high-quality materials such as copper and nickel ensures durability and consistent performance. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship.