The Walker Products Engine Oil Pressure Switch (part number 256-1008) is a direct-fit replacement for 1992-2014 Buick, Chevrolet, Dodge, and GMC vehicles with 3.8L, 4.3L, and 8.0L 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:
- 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.
- Prevents Engine Damage:Â Helps protect vital components by alerting the driver or system to low oil pressure conditions.
- OE Replacement Calibration:Â Matches original specs for pressure activation point, thread pitch, and electrical response.
- Monitors Oil Pressure Levels:Â Activates dashboard warning or ECU input when oil pressure falls below safe operating thresholds.
Specifications:
| Number of Terminals | 3 |
| Connector Type | Pin |
| Connector Gender | Male |
| Terminal Gender | Female |
Fits: 1992-2014 Buick, Chevrolet, Dodge, GMC, and Pontiac models including LeSabre, Park Avenue, Express 1500, Express 2500, Silverado 1500, Silverado 1500 Classic, Viper, Savana 1500 and more — 3.8L, 4.3L, and 8.0L 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.
Interchanges With: Forecast 80001, Chrysler 33004625, Chrysler 33004791, Chrysler 33004791AB, Wells PS421, SMP PS309, SMP PS309T, BWD S4201 and 20 more
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.
