Denso 673-4029 Direct Ignition Coil

Reliable Ignition Coil for Nissan and INFINITI Vehicles

The Denso 673-4029 Direct Ignition Coil is designed to deliver consistent 12-volt performance for a range of Nissan and INFINITI models. Its black finish complements engine components while providing durable operation under various driving conditions.

• Direct Ignition Coil with 12-volt rating
• Compatible with multiple Nissan and INFINITI models including 350Z, Altima, Maxima, and Q50
• Black color for seamless engine bay integration
• Part of the Denso Coil on Plug product line for efficient ignition delivery
• OEM-quality fit and function with part number 673-4029

About the Denso Coil on Plug Product Line

The Denso Coil on Plug line features ignition coils designed to mount directly onto spark plugs, eliminating the need for spark plug wires. This design improves ignition efficiency and reduces energy loss, which is critical for maintaining engine performance and fuel economy. The 673-4029 coil is engineered to meet the specific electrical and mechanical requirements of Nissan and INFINITI vehicles, ensuring reliable ignition system operation.

Product Details and Specifications

This direct ignition coil operates at 12 volts and is finished in black to resist corrosion and wear. It is engineered to provide a stable and strong spark for optimal combustion in compatible vehicles. The coil is designed to fit a variety of Nissan and INFINITI models, including the 350Z, Altima, EX35, FX35, G25, G35, JX35, M35, M35h, Maxima, Murano, Pathfinder, Q50, Q70, Quest, and QX60. The part number 673-4029 ensures precise identification and compatibility.

Common Applications and Issues Addressed

• Restores proper ignition spark in Nissan 350Z and INFINITI Q50 engines
• Resolves misfires and rough idling in Altima and Maxima models
• Improves engine start-up reliability for Pathfinder and Murano vehicles
• Addresses ignition coil failure symptoms such as poor acceleration and engine hesitation
• Supports emission control by maintaining efficient combustion

Installation Notes and Tips

Installation of the Denso 673-4029 ignition coil requires removal of the engine cover and disconnecting the electrical connector from the old coil. Ensure the ignition is off and the engine is cool before starting. Carefully align the coil onto the spark plug and secure it according to manufacturer torque specifications. Verify all electrical connections are secure before testing engine operation.

Quality Assurance and Warranty

Denso ignition coils are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 673-4029 coil undergoes rigorous testing for voltage consistency and resistance. While specific warranty details may vary, Denso products typically include a limited warranty against defects in materials and workmanship.