Walker 256-1213 Engine Oil Pressure Switch

Walker 256-1213 Engine Oil Pressure Switch

Walker 256-1213 is an OE replacement engine oil pressure switch built to monitor oil pressure and send a warning signal when pressure drops below safe limits. It is a direct-fit solution for 1995 Audi 90 and 1995 Audi 90 Quattro applications with a 2.5 Bar specification.

Key Features

• OE replacement oil pressure switch for engine lubrication monitoring
• Red housing with 1 female spade connector and 1 male terminal
• Built to match OE pressure threshold, thread size, terminal type, and electrical response
• High-temperature, oil-resistant construction for engine bay exposure
• Direct factory-style fit for the engine block or oil filter housing location
• Walker 256-1213 supports dashboard warning light and ECU signal functions

Detailed Description

This Walker oil pressure switch is engineered for direct replacement in the lubrication warning circuit. On 1995 Audi 90 and 1995 Audi 90 Quattro models, the 2.5 Bar specification helps maintain the correct pressure threshold for the factory warning system. The Walker 256-1213 threads into the original mounting point and connects to the existing wiring without modification, making it a practical choice for service work, drivability repairs, or engine rebuilds.

This part cross-references Bosch (e.g., 028919081D) for the same application.

What It Helps Address

• Oil warning light flickering or staying on
• False low-oil-pressure warnings
• No warning signal when actual oil pressure drops
• Faulty electrical response from the original switch
• Loss of reliable oil pressure monitoring on Audi 90 and Audi 90 Quattro

Installation Notes and Tips

Verify the 2.5 Bar specification before installation and confirm the connector style matches the vehicle harness. Inspect the sealing surface and threads in the engine block or oil filter housing before threading in the new switch. Use the factory wiring connection and avoid altering the terminal or connector layout. For 1995 Audi 90 and 1995 Audi 90 Quattro, confirm the original warning circuit is functioning after installation.

Quality Assurance

Walker manufactures this oil pressure switch to OE specifications for fit, terminal configuration, and electrical response. The design uses materials selected for heat and oil exposure in engine service.