Walker 256-1275 Engine Oil Pressure Switch

Walker 256-1275 Engine Oil Pressure Switch

Walker 256-1275 is an OE replacement engine oil pressure switch built to monitor lubrication pressure and send a signal to the ECU or dashboard warning circuit when pressure drops below safe limits. It is a direct-fit solution for 2005 Audi A4 Quattro and 2005 Audi A6 Quattro applications listed below.

Key Features

• OE-style engine oil pressure switch for factory-style pressure monitoring
• Matches OE specifications for pressure threshold, thread size, terminal type, and electrical response
• Metal and plastic construction with black finish for engine-bay durability
• Blade pin terminal design with 1 female connector and 1 male terminal
• Built for direct installation at the factory mounting location on the engine block or oil filter housing
• Walker 256-1275 supports accurate oil pressure warning signal delivery in Audi A4 Quattro and Audi A6 Quattro applications

Detailed Description

This Walker oil pressure switch is engineered for exact OE fit and electrical behavior, helping maintain proper warning-light or ECU input function when oil pressure changes. The unit uses high-temperature, oil-resistant materials and is designed to thread into the original location without modification. For drivers searching for a 2005 Audi A4 Quattro oil pressure switch or a 2005 Audi A6 Quattro engine oil pressure switch, Walker 256-1275 provides a direct replacement that matches the factory connection style and response characteristics.

This part cross-references no listed interchange numbers for the same application.

What It Helps Address

• Oil warning light flickering or intermittent illumination
• False low-oil-pressure warnings
• No warning signal when actual oil pressure is low
• Faulty ECU or dash input from a worn pressure switch
• Loss of reliable lubrication-system monitoring

Installation Notes and Tips

Fits 2005 Audi A4 Quattro, N/A, to chassis/VIN #8E-5-581 000. Fits 2005 Audi A6 Quattro, N/A, to chassis/VIN #4F-5-168 000. Confirm the original connector style, thread size, and mounting location before installation. Clean the sealing area and inspect the wiring connector for corrosion or damage so the replacement switch can communicate correctly with the vehicle’s warning system.

Quality Assurance

Walker manufactures this oil pressure switch to OE replacement standards, with attention to pressure thresholds, terminal configuration, and electrical response for factory-style operation.