Denso 673-4232 Direct Ignition Coil

Denso Direct Ignition Coil for Nissan and INFINITI

Denso 673-4232 is a direct ignition coil-on-plug replacement built for 12.0-volt systems and finished in black. It is a DENSO Certified Replacement Part for select Nissan 370Z and INFINITI applications, including models that use coil-on-plug ignition for precise spark delivery.

The DENSO direct ignition coil line is developed with extensive testing and inspection to support consistent ignition performance and OE-style fitment. If you are replacing a failing coil on a Nissan 370Z, INFINITI G37, or other listed application, this part number 673-4232 is built to match the original configuration.

Key Features

• Direct ignition coil-on-plug design
• 12.0-volt electrical specification
• Black housing
• DENSO Certified Replacement Part
• OE-style replacement for select Nissan and INFINITI vehicles
• Part number: 673-4232

Detailed Description

This Denso ignition coil is engineered for vehicles that use a coil-on-plug setup, where each coil mounts directly to the spark plug for individual cylinder ignition control. It is listed for 2009-2020 Nissan 370Z, 2008-2013 INFINITI G37, 2014-2015 INFINITI Q50, 2014-2015 INFINITI Q60, 2011-2013 INFINITI M37, and other supported applications. The Denso 673-4232 is also cross-referenced with AP Exhaust 48748 and Delphi GN10430 for the same application.

For buyers searching for a Nissan 370Z ignition coil, INFINITI G37 coil-on-plug replacement, or a direct ignition coil for select INFINITI V6 models, this part provides a direct-fit service option backed by DENSO’s manufacturing standards.

What It Helps Address

• Engine misfire caused by a weak or failing ignition coil
• Rough idle from inconsistent spark output
• Hard starting related to ignition coil degradation
• Loss of acceleration response from intermittent coil performance
• Check engine light conditions tied to ignition system faults

Installation Notes and Tips

Verify the part number and vehicle application before installation. This coil is intended for coil-on-plug ignition systems, so confirm connector style, mounting location, and engine application against the original part. For best results, inspect spark plugs and related ignition components during replacement, especially on higher-mileage Nissan 370Z and INFINITI G37 vehicles.

Quality Assurance

DENSO states that this ignition coil line is supported by thorough testing and inspection processes to help maintain consistent quality. The 673-4232 is a DENSO Certified Replacement Part for the listed applications.