Walker 256-1132 Engine Oil Pressure Switch

Engine Oil Pressure Switch for OE-Style Monitoring

Walker 256-1132 is an engine oil pressure switch built to monitor lubrication pressure and send a warning signal when pressure drops below safe limits. It is an OE replacement part for vehicles that rely on a dash light or ECU input for oil pressure status, including select Isuzu Rodeo, Honda Passport, Isuzu Pickup, Isuzu Amigo, Isuzu Trooper, and Isuzu Impulse applications.

Built with metal and plastic construction, a black finish, 14-gauge wiring, and a 2-terminal male butt connection, this switch is made to match factory electrical and mechanical requirements. Walker 256-1132 threads into the original mounting location and connects to the existing harness without modification.

Key Features

• OE replacement engine oil pressure switch
• Matches factory pressure threshold, thread size, terminal type, and electrical response
• Metal and plastic construction for engine-bay exposure
• Black housing with 2-terminal male butt connection
• 14-gauge wire specification
• Direct-fit design for factory oil pressure monitoring systems
• Part number: 256-1132

Detailed Description

Walker Products 256-1132 is engineered for accurate oil pressure signaling in vehicles that use a switch-style warning circuit. When oil pressure falls below the calibrated limit, the switch sends the signal needed to illuminate the warning lamp or inform the ECU. This helps maintain early warning function in the lubrication system and supports timely diagnosis before internal engine damage occurs. This part cross-references 88924412 for the same application.

Compatible With select 1985-1997 Isuzu and Honda applications, including Fits 1993-1997 Isuzu Rodeo, N/A; Fits 1994-1996 Honda Passport, N/A; Fits 1995 Isuzu Pickup, N/A; Fits 1989-1994 Isuzu Amigo, N/A; Fits 1988-1994 Isuzu Pickup, N/A, For Light; Fits 1992 Isuzu Rodeo, N/A, For Light; Fits 1988-1991 Isuzu Trooper, N/A, For Light; and Fits 1985-1989 Isuzu Impulse, N/A, w/ Light.

Common Issues This Part Can Address

• Oil warning light flickering or staying on
• False low-oil-pressure warnings
• No warning signal when pressure drops
• Faulty switch output to the ECU or dash light
• Intermittent oil pressure indication on Isuzu Rodeo, Honda Passport, or Isuzu Pickup models

Installation Notes and Tips

Install the switch in the factory oil pressure port, typically on the engine block or oil filter housing. Verify thread engagement, terminal style, and connector fit before installation. Inspect the wiring and connector for corrosion or damage, since poor electrical contact can mimic switch failure. Confirm the oil pressure concern with proper testing before replacing the part.

Quality Assurance

Walker oil pressure switches are manufactured to OE-style specifications for fit, electrical response, and pressure calibration. High-temperature and oil-resistant materials are used to support consistent operation in normal engine conditions.