NGK 97390 Spark Plug

NGK G-Power Spark Plug for OE-Style Ignition Performance

The NGK G-Power Spark Plug, part number 97390, is built for drivers who want dependable ignition performance with OE-level construction. It combines a platinum center electrode tip, nickel ground electrode, and a copper core to support consistent spark delivery across a wide range of Chrysler, Dodge, Jeep, Honda, Hyundai, Kia, Ram, Acura, Mitsubishi, and Volkswagen applications.

As part of NGK’s G-Power Spark Plug line, this plug is engineered for vehicles that call for precise gap control and stable combustion performance. It is a direct-fit spark plug for many 2008-2024 applications, including Honda Odyssey, Dodge Charger, Jeep Grand Cherokee, and Ram 1500 Classic fitments.

Key Features

• NGK G-Power Spark Plug line for OE-style ignition service
• Platinum center electrode tip for durable spark delivery
• Copper core center electrode for efficient heat transfer
• Nickel ground electrode with trapezoid tip design
• 5,000 ohm resistance for ignition system stability
• Flat seat design with 12 mm thread diameter and 5/8 in. hex
• Pre-gapped at .040 in. with application-specific gap notes in fitment
• Manufacturer heat range 7

Detailed Description

NGK 97390 is a G-Power Spark Plug designed around a platinum-tipped center electrode and a nickel ground electrode to support reliable ignition in modern gasoline engines. The copper core helps manage heat, while the non-removable nut terminal and flat seat construction match common OE service requirements. With fitment across vehicles such as the Honda Accord, Chrysler 300, Dodge Challenger, and Jeep Cherokee, this spark plug serves a broad range of late-model import and domestic applications.

This part cross-references Four Seasons 97390 for the same application. For buyers searching long-tail terms such as NGK 97390 spark plug for 2011-2020 Dodge Charger, 2008-2019 Honda Odyssey spark plug replacement, or 2014-2020 Ram ProMaster 1500 ignition service, this part number is a direct reference point.

What It Helps Address

• Misfires caused by worn or fouled spark plugs
• Hard starting from weak ignition output
• Rough idle and inconsistent combustion
• Reduced throttle response from degraded spark performance
• Maintenance replacement for scheduled tune-up service

Installation Notes and Fitment

• Fits 2021-2024 Ram 1500 Classic, N/A; Gap 0.044"; G-Power Spark Plug
• Fits 2021-2023 Chrysler 300, N/A; Gap 0.044"; G-Power Spark Plug
• Fits 2021-2023 Dodge Challenger, N/A; Gap 0.044"; G-Power Spark Plug
• Fits 2021-2023 Dodge Charger, N/A; Gap 0.044"; G-Power Spark Plug
• Fits 2021-2022 Jeep Cherokee, N/A; Gap 0.044"; G-Power Spark Plug
• Fits 2021 Hyundai Tucson, N/A; Gap 0.044"; G-Power Spark Plug
• Fits 2021 Ram ProMaster 1500, N/A; Gap 0.044"; G-Power Spark Plug
• Fits 2021 Ram ProMaster 2500, N/A; Gap 0.044"; G-Power Spark Plug
• Fits 2021 Ram ProMaster 3500, N/A; Gap 0.044"; G-Power Spark Plug
• Fits 2019-2020 Mitsubishi Outlander, N/A; Adjust spark plug gap to 0.032 inches.; G-Power Spark Plug
• Fits 2019-2020 Ram 1500 Classic, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2014-2020 Ram ProMaster 1500, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2014-2020 Ram ProMaster 2500, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2014-2020 Ram ProMaster 3500, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2008-2019 Honda Odyssey, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2009-2019 Honda Pilot, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2017-2019 Honda Ridgeline, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2011-2019 Dodge Journey, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2013-2019 Ram 1500, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2013-2018 Acura RDX, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2017-2018 Chrysler Pacifica, N/A; Set spark plug gap to 0.040 inches.; G-Power Spark Plug
• Fits 2016-2018 Dodge Durango, N/A; Set spark plug gap to 0.040 inches.; G-Power Spark Plug
• Fits 2016-2018 Jeep Grand Cherokee, N/A; Set spark plug gap to 0.040 inches.; G-Power Spark Plug
• Fits 2018 Jeep Wrangler, N/A; Set spark plug gap to 0.040 inches.; G-Power Spark Plug
• Fits 2012-2017 Honda Civic, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2010-2017 Honda Accord, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2012-2016 Hyundai Elantra, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2011-2015 Jeep Grand Cherokee, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2009-2014 Acura TL, N/A; Adjust spark plug gap to 0.044 inches.; G-Power Spark Plug
• Fits 2008-2012 Honda Accord, N/A; w/o PZEV (Federal Emissions); Gap 0.044"; G-Power Spark Plug
• Fits 2008-2012 Honda Accord, N/A; w/PZEV (California Emissions); Gap 0.044"; G-Power Spark Plug

Quality Assurance

NGK is a long-established OE supplier and manufacturer with more than 80 years of automotive experience. Its North American and global manufacturing and distribution network supports original-equipment standards for durability and operational performance across automotive, motorcycle, marine, and small engine applications.