Denso 673-4030 Direct Ignition Coil

Reliable Ignition Performance for Nissan and INFINITI Vehicles

The Denso 673-4030 Direct Ignition Coil is designed to deliver consistent 12-volt ignition power for select Nissan and INFINITI models. Engineered to meet OEM specifications, this ignition coil ensures efficient spark delivery for smooth engine operation.

• Direct Ignition Coil with 12-volt operation
• Durable black housing for heat and corrosion resistance
• Compatible with Nissan Armada, NV2500, NV3500, Pathfinder, TITAN, and INFINITI QX56
• Part number 673-4030 for precise fitment
• Part of Denso's Coil on Plug product line for optimized ignition system integration

About the Denso Coil on Plug Product Line

The Coil on Plug product line from Denso is designed to provide direct ignition coil solutions that mount directly onto the spark plug. This design reduces energy loss and improves ignition efficiency by eliminating the need for spark plug wires. The 673-4030 coil is part of this line, offering reliable voltage delivery and a compact form factor tailored for specific Nissan and INFINITI engines.

Product Details and Specifications

This ignition coil operates at 12 volts and features a black exterior designed to withstand engine bay conditions. The direct ignition coil design allows for a straightforward installation directly onto the spark plug, improving ignition timing and engine responsiveness. The Denso 673-4030 is engineered to meet the exact requirements of Nissan Armada, NV2500, NV3500, Pathfinder, TITAN, and INFINITI QX56 models, ensuring compatibility and performance.

Common Applications and Issues Addressed

• Restores proper ignition spark in Nissan Armada and Pathfinder engines
• Resolves misfires and rough idling in INFINITI QX56 and Nissan TITAN
• Improves engine start-up reliability for NV2500 and NV3500 models
• Eliminates ignition coil failure symptoms such as poor acceleration
• Supports consistent engine performance under various driving conditions

Installation Notes and Tips

When installing the Denso 673-4030 ignition coil, ensure the engine is cool to prevent injury. Disconnect the battery before removal to avoid electrical shock. Carefully remove the old coil and inspect the spark plug for wear or damage. Install the new coil by firmly pressing it onto the spark plug until seated. Reconnect all electrical connectors securely and verify proper engine operation after installation.

Quality Assurance and Warranty

Denso ignition coils are manufactured to meet strict quality standards and OEM specifications. The 673-4030 part undergoes rigorous testing to ensure durability and reliable performance. While specific warranty details may vary, Denso products typically include coverage against manufacturing defects to provide confidence in your purchase.