Deliver a strong, consistent spark to keep every cylinder firing with the Standard Ignition Ignition Coil UF839. It drops in as a direct-fit replacement for the listed applications: the 2017-2024 Alfa Romeo Giulia, 2018-2022 Alfa Romeo Stelvio, 2023-2025 Dodge Hornet, 2019-2022 Jeep Cherokee, 2023-2024 Jeep Compass, 2022-2024 Jeep Grand Cherokee, and 2018-2025 Jeep Wrangler.
An ignition coil is a core part of the ignition system, and a failing one can show up as engine misfires, rough idle, hesitation on acceleration, hard starting, or an illuminated check engine light. Because those symptoms can also come from spark plugs, wiring, or other causes, diagnose the source first; if a failed coil is the cause, replacing it with UF839 addresses that fault. Its function is to convert low battery voltage into the high voltage required at the plug.
Interchange: Manufacturer part number UF839.
What does the UF839 ignition coil do?
It transforms the vehicle's low battery voltage into the high voltage needed to fire the spark plug, supplying the ignition energy for its cylinder.
Which vehicles does the UF839 fit?
It's a direct-fit replacement for the 2017-2024 Alfa Romeo Giulia, 2018-2022 Stelvio, 2023-2025 Dodge Hornet, 2019-2022 Jeep Cherokee, 2023-2024 Compass, 2022-2024 Grand Cherokee, and 2018-2025 Wrangler.
What are the signs an ignition coil may need replacing?
Common signs include engine misfires, rough idle, hesitation on acceleration, hard starting, or a check engine light. These can have other causes, so diagnose the source before replacing.
Will this coil stop my check engine light?
If a failed ignition coil is the confirmed cause of the fault, replacing it addresses that condition. Because a light can stem from spark plugs, wiring, or other issues, diagnose the cause first.
Is the UF839 a manufacturer part number?
Yes. UF839 is the Standard Ignition manufacturer part number for this ignition coil.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
