Denso 673-4233 Direct Ignition Coil

Denso Direct Ignition Coil for Nissan and Infiniti

The Denso 673-4233 direct ignition coil is a coil-on-plug replacement built for 12.0-volt ignition systems. It is engineered for 2011-2013 INFINITI QX56, 2014-2023 INFINITI QX80, and 2017-2023 Nissan Armada applications, with black housing and OE-style fitment for direct ignition service.

Key Features

• Direct ignition coil, coil-on-plug design
• 12.0-volt electrical specification
• Black finish
• Denso part number 673-4233
• Fits INFINITI QX80, Nissan Armada, and INFINITI QX56 applications listed below

Product Details

Denso Direct Ignition Coil - Coil on Plug part number 673-4233 is part of Denso’s direct ignition coil line, a product line focused on stick coil technology for modern engine ignition systems. Denso applies controlled testing and inspection processes to help maintain consistent ignition performance and OE-style replacement quality. This part cross-references Delphi GN10842 for the same application.

Use this ignition coil when servicing a 2014-2023 INFINITI QX80, a 2017-2023 Nissan Armada, or a 2011-2013 INFINITI QX56. The Denso 673-4233 is a direct replacement option for vehicles that use a coil-on-plug ignition setup and require a 12.0-volt coil.

Fitment

• Fits 2014-2023 INFINITI QX80, N/A; DENSO Certified Replacement Part; Direct Ignition Coil - Coil on Plug
• Fits 2017-2023 Nissan Armada, N/A; DENSO Certified Replacement Part; Direct Ignition Coil - Coil on Plug
• Fits 2011-2013 INFINITI QX56, N/A; DENSO Certified Replacement Part; Direct Ignition Coil - Coil on Plug

Common Issues This Part Can Address

• Engine misfire caused by a weak or failing ignition coil
• Rough idle during startup or at stoplights
• Hard starting related to inconsistent spark delivery
• Loss of acceleration response under load
• Check engine light conditions tied to ignition coil faults

Installation Notes

Confirm the vehicle year, make, and model before ordering, and match the coil-on-plug configuration to the original part. Inspect the ignition connector, spark plug condition, and surrounding wiring during service to help avoid repeat ignition faults. Verify the 12.0-volt specification and compare the original coil shape and connector layout before installation.

Quality Assurance

Denso backs this ignition coil with its established testing and inspection process used for direct ignition components. The 673-4233 is built as a Denso-certified replacement part for the listed Nissan and INFINITI applications.