Walker Products Engine Oil Pressure Switch P/N:256-1018
Keep an eye on engine lubrication with the Walker Products Engine Oil Pressure Switch 256-1059, an OE-replacement switch that monitors oil pressure and signals the ECU or dashboard warning light when levels fall below safe operating thresholds. It's a direct-fit replacement for a wide range of Hyundai, Kia, and Genesis models — including the 2003-2020 Hyundai Santa Fe, 2011-2020 Hyundai Elantra, 2006-2019 Hyundai Sonata, 2010-2021 Kia Forte, 2006-2020 Kia Optima, and 2018-2021 Kia Stinger. With 58 applications in all, see the Buyer's Guide tab for the full list and the engine details for your vehicle.
If a flickering oil light, false warnings, or a missing signal traces back to a failed switch, this Walker unit restores the lubrication system's early-warning function. Whether for scheduled service, a drivability repair, or an engine rebuild, it delivers dependable pressure monitoring.
What does the Walker 256-1059 oil pressure switch do?
It monitors engine oil pressure and triggers the dashboard warning light or sends a signal to the ECU when pressure falls below safe operating thresholds, providing early warning of low-lubrication conditions.
What are the signs this switch may need replacing?
Common signs include an oil light that flickers, false low-pressure warnings, or no signal under actual low-pressure conditions. Diagnose the cause before replacing, as other components can produce similar symptoms.
Will this switch fit my vehicle?
It's cataloged for 58 Hyundai, Kia, and Genesis applications, such as the 2003-2020 Santa Fe and 2010-2021 Kia Forte. Check the Buyer's Guide tab to confirm your year, make, and model.
Where does the 256-1059 install?
Per Walker, it threads directly into the factory location—typically the engine block or oil filter housing—using the original threads and connectors with no modifications required.
Is this a direct replacement for the original switch?
Yes. It's an OE-replacement switch calibrated to match original specs for pressure activation point, thread pitch, and electrical response, connecting to the existing wiring.
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.