Walker 921-2176 Ignition Coil - Rear

Ignition Coil for Nissan and INFINITI V8 Applications

Walker ThunderSpark ignition coil Part Number 921-2176 is a direct-fit ignition coil for select Nissan Armada and INFINITI QX80 and QX56 applications. It is listed for rear-cylinder positions on the covered vehicles and supports reliable spark delivery for proper engine operation.

Key Features

• Walker ThunderSpark ignition coil line
• Part Number: 921-2176
• Fits 2017-2024 INFINITI QX80, rear four cylinders; single coil
• Fits 2017-2024 Nissan Armada, rear four cylinders; single coil
• Fits 2014-2016 INFINITI QX80, rear
• Fits 2011-2013 INFINITI QX56, rear

Product Details

The ThunderSpark product line from Walker covers ignition components for vehicle-specific service needs. This ignition coil is cataloged for rear-position applications on INFINITI QX80, INFINITI QX56, and Nissan Armada models, making Part Number 921-2176 a focused replacement choice for the listed engine locations. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Can Address

• Engine misfire codes tied to a weak ignition coil
• Rough idle on rear-cylinder bank applications
• Hard starting caused by inconsistent spark output
• Loss of power under load from ignition breakdown
• Check engine light related to coil failure

Installation Notes and Tips

Verify the engine position and model year before ordering. Match the rear-cylinder application exactly to the vehicle listing, and inspect related ignition components during service. Confirm connector style and mounting location against the original part before installation.

Quality Assurance

Walker ThunderSpark Part Number 921-2176 is cataloged for the specified Nissan Armada and INFINITI QX80/QX56 fitments and is intended to meet the application requirements shown in the vehicle listing.