Denso 673-4025 Direct Ignition Coil

Reliable Ignition Coil for Infiniti and Nissan Vehicles

The Denso 673-4025 ignition coil is designed to deliver consistent 12-volt performance for select Infiniti and Nissan models. This direct ignition coil ensures efficient spark delivery, helping maintain engine reliability and smooth operation.

• Direct ignition coil with 12-volt rating
• Black color housing for durability and heat resistance
• Compatible with Infiniti 350Z, FX35, G35, M35, M45 and Nissan models
• Part number 673-4025 for precise replacement
• Part of Denso's Coil on Plug product line

About the Denso Coil on Plug Product Line

The Coil on Plug line by Denso features ignition coils designed to mount directly on the spark plug, eliminating the need for spark plug wires. This design reduces electrical losses and improves ignition efficiency. The 673-4025 coil benefits from this technology, providing reliable spark delivery tailored for specific Infiniti and Nissan engines.

Product Details and Specifications

This ignition coil operates at a standard 12 volts and comes in a black housing that withstands engine bay conditions. The direct ignition coil design simplifies installation and enhances ignition system performance by delivering voltage directly to the spark plug. The Denso 673-4025 is engineered to meet OEM specifications for the Infiniti 350Z, FX35, G35, M35, M45 models, ensuring compatibility and reliable operation.

Common Applications and Issues Addressed

• Replaces faulty or worn ignition coils in Infiniti 350Z, FX35, G35, M35, M45
• Resolves engine misfires and rough idling caused by ignition coil failure
• Improves starting performance and fuel efficiency
• Eliminates ignition-related check engine light codes
• Restores proper spark delivery for smooth engine operation

Installation Notes and Tips

• Ensure the ignition system is powered off before installation
• Verify compatibility with your specific Infiniti or Nissan model
• Handle the coil carefully to avoid damage to the housing or connectors
• Follow vehicle manufacturer torque specifications when securing the coil
• Inspect spark plugs and wiring during installation for optimal performance

Quality Assurance and Warranty

Denso ignition coils are manufactured to meet strict quality standards and OEM specifications. The 673-4025 part undergoes rigorous testing to ensure durability and consistent performance. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship.