Standard PSS4T Power Steering Pressure Switch

Power Steering Pressure Switch for Ford and Mazda

The Standard PSS4T power steering pressure switch is an OE-style replacement built to match original equipment form, fit, and function. It is used in steering systems that rely on pressure feedback to help maintain proper engine idle response during steering load changes.

Compatible with a wide range of Ford, Lincoln, Mercury, and Mazda applications, including Ford Explorer, Ranger, Mustang, and Mazda B2300 models, this switch is a direct-fit service part for vehicles using the listed connector and terminal configuration.

Key Features

• OE-style power steering pressure switch for steering system pressure signaling
• Standard PSS4T replacement part number for catalog lookup and ordering
• Female connector with 1 connector cavity
• 2 blade terminals with male terminal ends
• Silver and white housing finish
• Built to match original equipment form, fit, and function

Detailed Description

The Standard PSS4T is a power steering pressure switch designed for vehicles that use a pressure-sensitive signal to the engine control system. When steering load increases, the switch helps communicate that change so the vehicle can respond appropriately at idle. This OE-style design supports clean replacement on applications such as Ford Explorer, Ford Ranger, Ford Mustang, Mercury Mountaineer, and Mazda B2300.

This part cross-references Wix 57320 for the same application. The PSS4T is also listed under Standard Ignition PSS4 and other interchange numbers for catalog matching.

What It Helps Address

• Erratic or unstable idle when turning the steering wheel
• Power steering pressure signal faults
• Driveability concerns tied to steering load changes
• Replacement needs for a damaged or worn pressure switch
• Electrical connection issues at the steering pressure switch circuit

Installation Notes and Tips

Verify connector style, terminal layout, and vehicle application before installation. This switch uses a female connector and two male blade terminals, so matching the original electrical interface is important for proper fitment. Confirm the vehicle-specific listing, including notes such as the 2006 Ford Freestar with rectangular connector and the 2000-2003 Ford Windstar with gray connector.

Fits 2005-2011 Ford Explorer, N/A; Fits 1991-2002 Ford Explorer, N/A; Fits 2007-2010 Ford Explorer Sport Trac, N/A; Fits 2001-2002 Ford Explorer Sport Trac, N/A; Fits 2001-2010 Mazda B2300, N/A; Fits 1994-1997 Mazda B2300, N/A; Fits 2005-2010 Mercury Mountaineer, N/A; Fits 1997-2002 Mercury Mountaineer, N/A; Fits 2006 Ford Freestar, N/A, w/ Rectangular Connector; Fits 2003-2006 Lincoln LS, N/A; Fits 2000 Lincoln LS, N/A; Fits 2004-2005 Ford Freestar, N/A; Fits 2003-2004 Ford E-150, N/A; Fits 2003-2004 Ford E-150 Club Wagon, N/A; Fits 2003-2004 Ford E-250, N/A; Fits 2003-2004 Ford E-350 Club Wagon, N/A; Fits 2004 Ford E-350 Super Duty, N/A; Fits 2000-2002 Ford E-350 Super Duty, N/A; Fits 1999-2004 Ford Econoline, N/A; Fits 1987-2003 Ford Mustang, N/A; Fits 1983-2003 Ford Ranger, N/A; Fits 2000-2003 Ford Windstar, N/A, Gray; Fits 1987-2002 Ford E-150 Econoline, N/A; Fits 1987-2002 Ford E-150 Econoline Club Wagon, N/A; Fits 1987-2002 Ford E-250 Econoline, N/A; Fits 1987-2002 Ford E-350 Econoline Club Wagon, N/A; Fits 1996-2002 Lincoln Continental, N/A; Fits 1991-2002 Lincoln Town Car, N/A; Fits 1987-2001 Ford Taurus, N/A; Fits 1998-2001 Mazda B2500, N/A; Fits 1987-2001 Mercury Sable, N/A; Fits 1987-2000 Ford E-350 Econoline, N/A; Fits 1999 Ford Windstar, N/A; Fits 1987-1998 Ford F-150, N/A; Fits 1987-1998 Ford F-250, N/A; Fits 1986-1997 Ford Aerostar, N/A; Fits 1987-1997 Ford F-350, N/A; Fits 1987-1996 Ford Bronco, N/A; Fits 1987-1991 Ford E-250 Econoline Club Wagon, N/A; Fits 1984-1990 Ford Bronco II, N/A; Fits 1988-1989 Mercury Tracer, N/A.

Quality Assurance

Standard T-Series switches are engineered to meet original equipment form, fit, and function, supporting consistent replacement quality for steering system service.