Calorstat TS6994 Engine Cooling Fan Switch

Engine Cooling Fan Switch for OE-Style Temperature Control

Calorstat TS6994 is an engine cooling fan switch built around a 92/87 temperature range and an M22x1.5 thread size. It is used in single-speed cooling fan systems where the fan must switch on at a defined coolant temperature and switch off after the engine cools down.

Key Features

• Engine cooling fan switch with 1-speed operation
• Switching temperature: 92°C on / 87°C off
• M22x1.5 thread size for threaded coolant housing applications
• Calorstat TS6994 part number for direct catalog lookup
• Cross-references Hayden 5000 and EXEDY OEM 06031 for the same application

Detailed Description

This Calorstat TS6994 cooling fan switch is specified for vehicles that use a threaded temperature switch to control radiator fan operation. The 92/87 activation range helps manage fan cycling by turning the fan on at 92°C and off at 87°C, supporting stable engine temperature control in everyday driving and stop-and-go traffic. It is listed for Saab 900, Saab 9000, Porsche 924, Porsche 944, Volkswagen Jetta, Audi 4000, and Volkswagen Rabbit Pickup applications. The TS6994 is also referenced under multiple OE and aftermarket numbers, making it easier to match the correct engine cooling fan switch for the vehicle.

Fits 1979-1994 Saab 900, N/A. Fits 1986-1989 Saab 9000, N/A. Fits 1987 Porsche 924, N/A. Fits 1977-1981 Porsche 924, N/A. Fits 1983-1984 Porsche 944, N/A. Fits 1982-1984 Volkswagen Jetta, N/A. Fits 1980-1983 Audi 4000, N/A. Fits 1980-1981 Volkswagen Rabbit Pickup, N/A.

What It Helps Address

• Cooling fan not switching on at the correct temperature
• Cooling fan staying on longer than expected after warm-up
• Erratic fan cycling caused by a worn temperature switch
• Engine temperature control issues in threaded switch applications
• Replacement needs for OE-style fan switch service on Saab, Porsche, Volkswagen, and Audi models

Installation Notes and Tips

Verify the thread size, temperature range, and connector style against the original switch before installation. Confirm the vehicle uses a single-speed fan circuit and match the switch location in the coolant housing or radiator as specified by the application. Use proper coolant service procedures when removing and installing any threaded cooling system switch.

Quality Assurance

Calorstat is listed as an OE supplier for Volkswagen and Audi applications in this catalog data, which supports application accuracy for the TS6994. This part number also cross-references Hayden 5000 and EXEDY OEM 06031 for the same application.