Standard Ignition TS-329 Engine Cooling Fan Switch

Engine Cooling Fan Switch for Toyota and Lexus

Standard Ignition TS-329 is an engine cooling fan switch built for direct-fit service on select Toyota and Lexus applications. It uses a plug-in attachment method, a female oval connector, and a 16mm x 1.50 thread size for a straightforward replacement on the radiator or engine-mounted location specified by the vehicle.

With a metal housing, 12-volt operation, and a 2-blade male terminal layout, this TS-329 cooling fan switch is made for vehicles that rely on accurate coolant temperature signaling to control fan operation. It is a practical replacement for Toyota Camry, Toyota Celica, Toyota RAV4, Lexus GS300, and related fitments.

Key Features

• Standard Ignition TS-329 engine cooling fan switch
• Plug-in attachment method with 1 female oval connector
• 16mm x 1.50 thread size for specified applications
• 12-volt electrical design
• Metal housing with white and gold finish
• Open at idle configuration
• 2 blade terminals, male terminal gender
• Oval switch shape with toggle actuation style

Detailed Description

The Standard Ignition TS-329 is an engine cooling fan switch used to manage fan operation based on coolant temperature. It is listed for a wide range of Toyota and Lexus vehicles, including 1992-2001 Toyota Camry, 1999-2001 Toyota Solara, 1996-2000 Toyota RAV4, 1996-1999 Toyota Celica, 1995-2000 Lexus LS400, 1998-2000 Lexus GS400, 1998-1999 Lexus GS300, 2000-2003 Lexus GS300, and 2001-2003 Lexus GS430. Additional fitments include Toyota Paseo, Toyota Tercel, and Toyota MR2 applications noted in the fitment data.

This part cross-references Four Seasons 36549 and Beck/Arnley 201-1609 for the same application. If you are replacing a failed Toyota Camry radiator fan switch or a Lexus engine-mounted cooling fan switch, TS-329 provides the specified connector, thread, and terminal configuration for the listed vehicles.

Common Problems This Part Can Address

• Cooling fan not switching on at the proper temperature
• Cooling fan running inconsistently or cycling incorrectly
• Temperature-related overheating concerns tied to fan control
• Failed radiator-mounted or engine-mounted fan switch replacement needs
• Connector or terminal mismatch during cooling system repair

Installation Notes and Tips

• Verify the thread size, connector shape, and terminal layout before installation.
• Confirm whether the vehicle uses a radiator-mounted, water inlet, or engine-mounted switch location.
• Inspect the connector for corrosion or heat damage before plugging in the replacement.
• Use the vehicle service information for coolant draining, torque, and sealing procedures.
• Match the application notes carefully on Toyota Camry, Toyota Celica, and Lexus GS300 fitments.

Quality Assurance

Standard Ignition TS-329 is built as a replacement cooling fan switch for the listed Toyota and Lexus applications. Its specified connector style, terminal configuration, and threaded mounting design support accurate fitment selection for service work on the cooling system.