Walker 256-1127 Engine Oil Pressure Switch

Engine Oil Pressure Switch for Audi and Volkswagen

Walker 256-1127 is an OE replacement engine oil pressure switch built to monitor lubrication pressure and trigger the warning circuit when pressure drops below safe limits. It matches factory-style electrical response, thread size, and terminal configuration for direct replacement service on select Audi and Volkswagen applications.

Use this switch when the oil warning light flickers, the dash shows false pressure alerts, or the engine control system loses the signal it needs for proper oil-pressure monitoring. Walker 256-1127 is built with metal and plastic construction, a white body, a blade terminal, and a male terminal connection for factory-style fitment.

• OE replacement engine oil pressure switch
• Matches OE pressure threshold and electrical response
• Blade terminal, 1 terminal, male terminal gender
• Metal and plastic construction for engine bay exposure
• Direct-fit replacement for factory mounting location
• Walker 256-1127 for select Audi A4, A6, S4, and Volkswagen Golf applications

Detailed Product Overview

Walker Products 256-1127 is engineered for vehicles that rely on a pressure switch to activate the oil warning lamp or send a signal to the ECU. It is a direct replacement for the factory unit and is designed to thread into the original engine location, typically the engine block or oil filter housing, without wiring changes. This part number is used across select 1985-1999 Audi and Volkswagen models, including Audi A4, A4 Quattro, A6, A6 Quattro, Cabriolet, S4, 100 Quattro, 200 Quattro, Coupe Quattro, Quattro, and Volkswagen Jetta, Golf, and EuroVan applications.

Common Problems This Part Can Address

• Oil warning light flickering at idle or during driving
• False low-oil-pressure warnings on the dash
• No warning signal when actual oil pressure drops
• Faulty pressure switch signal to the ECU or gauge circuit
• Intermittent electrical contact at the oil pressure switch

Installation Notes and Tips

Verify the pressure rating, terminal style, and thread specification before installation. This part number 256-1127 is listed for select Audi and Volkswagen vehicles, including 1997-1999 Audi A8 and A8 Quattro, 1997 Audi A4 and A4 Quattro to chassis/VIN #8D-V-054 231, and 1995-1999 Volkswagen Jetta and 1995-1998 Volkswagen Golf with 1.8 Bar applications. Confirm the original switch location and electrical connector style before removal, and inspect the harness for corrosion or damaged terminals during service.

For fitment-specific searches, this part is commonly referenced as an engine oil pressure switch for 1995-1997 Audi A6 and A6 Quattro, 1992-1994 Audi S4, and 1990-1991 Audi 100 Quattro and 200 Quattro applications. Walker 256-1127 also serves 1995 Volkswagen EuroVan and 1985 Audi Quattro applications listed in the catalog fitment data.

Quality Assurance

Walker Products designs this oil pressure switch to OE replacement standards, with attention to pressure threshold, terminal type, and electrical response for factory-style operation. The construction uses high-temperature, oil-resistant materials to withstand prolonged engine exposure and maintain consistent monitoring performance.