NGK 49023 Ignition Coil

NGK COP Ignition Coil for Nissan and INFINITI

The NGK COP Ignition Coil is built for distributorless ignition systems and coil-on-plug applications that demand stable voltage delivery and consistent spark performance. This NGK ignition coil is a direct-fit option for a wide range of Nissan and INFINITI vehicles, including the Nissan Altima, Maxima, Murano, Pathfinder, and INFINITI QX60.

Key Features

• 12-volt ignition coil for distributorless systems
• COP (coil on plug) design for direct spark delivery
• Female connector with 3 terminals
• Blade terminal type with male terminal gender
• Oil-filled: No
• Mounting bracket included: No
• NGK Part Number: 49023
• Also identified as Part Number U5128

Product Details

NGK designs its ignition coils to meet or exceed OE standards, with testing performed under demanding conditions in an ISO 17025 accredited lab. That engineering focus supports dependable operation across late-model domestic and import vehicles, including applications such as the 2007-2018 Nissan Altima, 2009-2024 Nissan Murano, 2016-2023 Nissan Maxima, and 2014-2023 INFINITI QX60. This part cross-references DENSO Auto Parts 673-4029 for the same application.

As part of the NGK COP Ignition Coil line, this ignition coil is built for vehicles that use coil-on-plug ignition architecture. The line reflects NGK’s long-standing OE legacy and broad vehicle coverage, making it a practical replacement choice for drivers servicing Nissan Maxima ignition coil, Nissan Pathfinder ignition coil, or INFINITI Q50 ignition coil applications.

What It Helps Fix

• Engine misfire caused by weak or inconsistent spark output
• Rough idle or hesitation during acceleration
• Hard starting related to ignition coil failure
• Check engine light conditions tied to ignition performance
• Loss of power under load from degraded coil operation

Installation Notes

Verify connector style, terminal count, and engine application before installation. This NGK ignition coil uses a 3-terminal blade connection and is intended for distributorless COP systems. Confirm the vehicle’s exact year and model match the fitment list, especially on Nissan Altima, Nissan Murano, Nissan Pathfinder, and INFINITI QX60 applications. No mounting bracket is included.

Quality Assurance

NGK manufactures ignition coils to OE-level standards and validates designs through rigorous lab testing under extreme conditions. The brand’s North American and global manufacturing, inventory, and distribution network supports consistent product availability and application coverage. No warranty information was provided in the product data.

Fitment

• Fits 2009-2024 Nissan Murano, N/A
• Fits 2022-2024 Nissan Pathfinder, N/A
• Fits 2013-2020 Nissan Pathfinder, N/A
• Fits 2022-2023 INFINITI QX60, N/A
• Fits 2014-2020 INFINITI QX60, N/A
• Fits 2016-2023 Nissan Maxima, N/A
• Fits 2009-2014 Nissan Maxima, N/A
• Fits 2017-2019 Nissan Frontier, N/A
• Fits 2017-2018 INFINITI Q70, N/A
• Fits 2014-2015 INFINITI Q70, N/A
• Fits 2007-2018 Nissan Altima, N/A
• Fits 2014-2017 INFINITI Q50, N/A
• Fits 2011-2017 Nissan Quest, N/A
• Fits 2017 Rolls-Royce Dawn, N/A
• Fits 2017 Rolls-Royce Ghost, N/A
• Fits 2017 Rolls-Royce Phantom, N/A
• Fits 2017 Rolls-Royce Wraith, N/A
• Fits 2015 Nissan Xterra, N/A
• Fits 2013 INFINITI JX35, N/A
• Fits 2012-2013 INFINITI M35h, N/A
• Fits 2008-2012 INFINITI EX35, N/A
• Fits 2009-2012 INFINITI FX35, N/A
• Fits 2011-2012 INFINITI G25, N/A
• Fits 2009-2010 INFINITI M35, N/A
• Fits 2007-2009 Nissan 350Z, N/A
• Fits 2007-2008 INFINITI G35, N/A
• Fits 2008 Nissan Maxima, N/A