The Walker Products Engine Oil Pressure Switch (part number 256-1028) is a direct-fit replacement for 2013-2023 Buick, Cadillac, Chevrolet, and GMC vehicles with 2.0L, 2.5L, and 3.6L engines. Walker Products Oil Pressure Switches are OE Replacement components that monitor engine lubrication pressure to protect against low-oil conditions and prevent engine damage.
Features:
- OE Replacement Calibration:Â Matches original specs for pressure activation point, thread pitch, and electrical response.
- Exact OE Fit: Installs directly in the factory location using original threads and connectors—no modifications required.
- Engineered for Harsh Conditions:Â Built to resist high temperatures, oil exposure, and vibration in demanding engine environments.
- Monitors Oil Pressure Levels:Â Activates dashboard warning or ECU input when oil pressure falls below safe operating thresholds.
- Prevents Engine Damage:Â Helps protect vital components by alerting the driver or system to low oil pressure conditions.
Specifications:
| Number of Terminals | 3 |
| Connector Type | Blade Pin |
| Connector Gender | Male |
| Terminal Gender | Female |
Fits: 2013-2023 Buick, Cadillac, Chevrolet, and GMC models including Envision, LaCrosse, Regal, Regal Sportback, Regal TourX, ATS, CT6, CTS and more — 2.0L, 2.5L, and 3.6L engines.
Confirm the year, make, model, and engine against your vehicle before ordering. Full application data is shown in the fitment lookup on this page.
WARNING: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm.
