Walker 256-1041 Engine Oil Pressure Switch

Engine Oil Pressure Switch for Mazda Applications

Walker 256-1041 is an OE replacement engine oil pressure switch built to monitor lubrication pressure and send the proper signal to the ECU or dashboard warning circuit. It is made with metal and plastic construction, a black finish, and a blade pin terminal layout for direct connection to the factory harness.

• OE replacement oil pressure switch for engine lubrication monitoring
• Matches OE pressure thresholds, thread size, terminal type, and electrical response
• Blade pin terminal with 1 connector and 1 terminal
• Female connector / male terminal configuration
• High-temperature, oil-resistant materials for engine bay exposure
• Direct-fit design for factory mounting locations

Detailed Product Overview

Walker 256-1041 is engineered for vehicles that rely on an accurate oil pressure signal to trigger the warning light or communicate with engine management. When oil pressure drops below the safe threshold, the switch provides the signal needed for early driver notification and system response. This part number is a direct OE-style replacement for Mazda MX-5 Miata, Mazda 3, Mazda CX-3, Mazda 6, and Mazda CX-5 applications listed in the fitment data. Walker 256-1041 is built to match the original switch’s electrical behavior and physical dimensions for straightforward replacement service.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Can Address

• Oil warning light flickering during normal driving
• False low-oil-pressure warnings
• No warning signal when actual oil pressure is low
• Intermittent or inconsistent oil pressure switch output
• Fault codes or drivability concerns tied to oil pressure signal loss

Installation Notes and Fitment

Compatible With 2016-2025 Mazda MX-5 Miata, N/A; 2012-2018 Mazda 3, N/A; 2016-2018 Mazda CX-3, N/A; 2014-2017 Mazda 6, N/A; and 2013-2017 Mazda CX-5, N/A. The switch threads into the factory oil pressure port, typically on the engine block or oil filter housing, and connects to the existing wiring without modification. Verify connector style, thread size, and OE pressure specification before installation. For Mazda MX-5 Miata, Mazda 3, and Mazda CX-5 service work, confirm the original sensor location and electrical connector match the replacement part before final assembly.

Quality Assurance

Walker manufactures this oil pressure switch to OE replacement standards for fit, terminal configuration, and electrical response. The design uses oil-resistant materials selected for sustained engine heat and exposure, supporting consistent pressure monitoring in normal service.