Walker 921-2175 Ignition Coil - Front

Ignition Coil for Infiniti and Nissan V8 Applications

Walker ThunderSpark ignition coil Part Number 921-2175 is a direct-fit ignition component for select Infiniti QX80, Infiniti QX56, and Nissan Armada applications. It is built for front-cylinder fitment on the listed vehicles and supports reliable spark delivery in the ignition system.

Key Features

• Walker ThunderSpark ignition coil for OE-style replacement use
• Fits 2017-2024 INFINITI QX80, front four cylinders; single coil
• Fits 2017-2024 Nissan Armada, front four cylinders; single coil
• Fits 2014-2016 INFINITI QX80, front
• Fits 2011-2013 INFINITI QX56, front
• Part Number: 921-2175

Detailed Description

This ignition coil is intended for vehicles that require a front-mounted coil in the ThunderSpark line. Walker 921-2175 is listed for 2017-2024 Infiniti QX80 and 2017-2024 Nissan Armada front four-cylinder applications, plus 2014-2016 Infiniti QX80 front and 2011-2013 Infiniti QX56 front fitments. If you are replacing a failing coil on an Infiniti QX80 or Nissan Armada, this part number provides a direct reference for the correct application.

This part cross-references no additional part numbers in the provided data.

Common Issues It Can Address

• Engine misfire caused by a weak or failed ignition coil
• Rough idle during cold start or under load
• Hard starting related to inconsistent spark output
• Loss of power from ignition breakdown in the front cylinder bank
• Check engine light conditions tied to coil performance

Installation Notes and Tips

Verify engine configuration and cylinder-bank location before installation. Confirm the connector style, mounting location, and vehicle year against the fitment list for 2011-2024 Infiniti and Nissan applications. Use the vehicle service information to clear diagnostic trouble codes after replacement and inspect related ignition components if misfire symptoms remain.

Quality Assurance

Walker ThunderSpark 921-2175 is cataloged as an ignition coil for the listed Infiniti and Nissan applications and should be matched to the exact year, model, and position shown above.