Denso 673-4016 Direct Ignition Coil

Reliable Ignition Coil for Nissan Pathfinder and Infiniti QX4

The Denso 673-4016 ignition coil is designed to deliver consistent 12-volt performance for direct ignition systems. Specifically engineered for Nissan Pathfinder and Infiniti QX4 models, this gray coil ensures precise spark delivery for optimal engine function.

Key Features of the Denso 673-4016 Ignition Coil

• Direct ignition coil designed for 12-volt electrical systems
• Gray color housing for easy identification and fitment
• Compatible with Nissan Pathfinder and Infiniti QX4 vehicles
• Part of the Denso Coil on Plug product line for efficient ignition
• Durable construction to withstand engine heat and vibration

About the Denso Coil on Plug Product Line

The Denso Coil on Plug product line focuses on direct ignition coils that mount directly onto the spark plug, eliminating the need for spark plug wires. This design improves ignition efficiency and reduces potential points of failure. The 673-4016 coil benefits from this technology, providing reliable spark delivery tailored for Nissan and Infiniti vehicles.

Detailed Product Description

The Denso 673-4016 ignition coil operates at 12 volts and features a gray casing that matches OEM specifications for easy replacement. This direct ignition coil is engineered to fit Nissan Pathfinder and Infiniti QX4 models, ensuring proper electrical compatibility and mechanical fit. By delivering a strong and consistent spark, it supports smooth engine starts, efficient combustion, and overall vehicle performance.

Common Issues Addressed by This Ignition Coil

• Engine misfires or rough idling in Nissan Pathfinder and Infiniti QX4
• Difficulty starting the engine due to weak spark
• Reduced fuel efficiency caused by incomplete combustion
• Check engine light triggered by ignition system faults
• Intermittent power loss or hesitation during acceleration

Installation Notes and Tips

• Ensure the vehicle’s ignition system is off before installation
• Verify compatibility with Nissan Pathfinder or Infiniti QX4 model year
• Handle the coil carefully to avoid damage to the electrical connectors
• Replace coils one at a time to isolate any ignition issues
• Consult the vehicle’s service manual for torque specifications and installation procedures

Quality Assurance and Warranty

Denso ignition coils, including the 673-4016, are manufactured to meet strict OEM standards for durability and performance. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. This ensures confidence in the coil’s reliability when installed in compatible Nissan Pathfinder and Infiniti QX4 vehicles.