Denso 3051 Spark Plug

Overview of Denso 3051 Spark Plug for Nissan 280ZX

The Denso 3051 spark plug is designed specifically for the Nissan 280ZX, providing reliable ignition performance. Featuring a U-groove ground electrode tip, this spark plug supports efficient combustion and consistent engine operation.

• U-groove ground electrode tip design for improved spark exposure
• Standard ground configuration with a single ground electrode
• Nickel ground electrode core and tip for durability
• Copper center electrode core with nickel tip for optimal conductivity
• Pre-gap size of 0.8 mm for precise ignition timing
• Flat seat type with 14 mm thread diameter and 19 mm reach
• Hex size of 20.6 mm for easy installation
• Manufacturer heat range rating of 20 suitable for Nissan 280ZX engines

Details on the U-Groove Conventional Product Line

The Denso U-Groove Conventional spark plug line is engineered to enhance ignition efficiency through its unique U-groove ground electrode tip design. This design increases the spark exposure area, which can contribute to more complete combustion. The conventional construction balances durability and performance, making it suitable for vehicles like the Nissan 280ZX that require consistent ignition characteristics.

Technical Description of Denso 3051 Spark Plug

The Denso 3051 spark plug incorporates a nickel ground electrode core and tip, providing resistance to wear and corrosion. The center electrode features a copper core with a nickel tip, combining excellent thermal conductivity with durability. The single ground electrode with a U-groove tip design improves spark efficiency by increasing the spark gap exposure. With a pre-gap size of 0.8 mm, this spark plug is optimized for the ignition system of the Nissan 280ZX. The flat seat and 14 mm thread diameter ensure proper fitment and sealing within the engine cylinder head, while the 19 mm reach accommodates the engine’s combustion chamber design. The 20.6 mm hex size allows for straightforward installation using standard tools.

Compatible Applications and Common Issues Addressed

• Compatible with Nissan 280ZX models requiring a 14 mm thread diameter spark plug
• Helps resolve misfires caused by worn or inefficient spark plugs
• Improves engine starting reliability and throttle response
• Reduces incomplete combustion and associated emissions
• Supports consistent engine performance under varied operating conditions

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 0.8 mm as specified. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended torque to avoid damage to the threads or improper sealing. The 20.6 mm hex size is compatible with standard spark plug sockets. Inspect the spark plug threads and cylinder head for cleanliness to ensure proper fitment. It is advisable to replace spark plugs in sets to maintain balanced engine performance.

Quality Assurance and Warranty

Denso spark plugs, including the 3051 part number, are manufactured to meet strict quality standards for durability and performance. The materials used, such as nickel and copper electrodes, are selected for their resistance to wear and thermal stress. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Nissan 280ZX vehicles.