Walker 256-1048 Engine Oil Pressure Switch

Engine Oil Pressure Switch for OE Replacement

Walker 256-1048 is an OE replacement engine oil pressure switch built to monitor lubrication pressure and send the correct signal to the ECU or dashboard warning circuit. It is used on a wide range of Audi and Volkswagen applications, including Volkswagen Jetta, Golf, Passat, and Audi A6 Quattro models.

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 oil-resistant, high-temperature materials
• Blade terminal, male terminal design for direct wiring connection
• Brown housing finish
• Direct-fit replacement for factory mounting locations such as the engine block or oil filter housing
• Part number 256-1048 for catalog and service reference

Detailed Description

Walker 256-1048 is engineered to restore oil pressure warning function in vehicles that rely on a switch-style sender rather than a full pressure sensor. It threads into the original location and connects to the existing harness without modification, helping maintain accurate warning-light operation and ECU input where equipped. This part number 256-1048 is a practical replacement when the original switch is causing flickering oil lights, false warnings, or no signal during a true low-pressure condition.

Compatible With Audi 100, 80, 90, 200, 4000, 5000 Quattro, A6, A6 Quattro, Cabriolet, Coupe, and Volkswagen Cabriolet, Corrado, EuroVan, Fox, Golf, Jetta, Passat, Quantum, Vanagon, and related applications listed in the fitment data. The switch is built for direct OE-style service on 1985-1999 vehicles across the listed Audi and Volkswagen platforms.

Common Issues 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 oil pressure drops below safe limits
• Intermittent oil light operation caused by a failing switch
• Faulty ECU or gauge input from the original pressure switch

Installation Notes and Tips

Install the switch in the factory oil pressure port specified for the vehicle application and verify the correct pressure rating and connector style before installation. Use the fitment notes to confirm the proper color and bar rating for the exact Audi or Volkswagen model, since several applications use different warning thresholds. The blade-style male terminal connects to the existing harness, and the switch should be tightened to the vehicle manufacturer’s service specification.

Quality Assurance

Walker Products manufactures this oil pressure switch to OE replacement standards using materials selected for heat and oil exposure in engine service. The design follows factory requirements for fit and electrical response so the warning system can operate as intended.