This Bosch Thermo-Time Switch is a direct-fit replacement for Porsche applications listed in the fitment table below.

Bosch has been engineering automotive systems in Germany for over a century and is one of the world’s leading OEM suppliers. Providing components to manufacturers like Porsche, Bosch is known for precision manufacturing, durability, and consistent performance. Their components are built to meet strict European standards and deliver reliable operation.

Technical Details
Manufacturer part number: BBHK_F-026-T03-100
Type: Thermo-Time Switch

Fitment & Compatibility
Use the fitment table below to confirm year and model details. If you’re unsure on fitment, send us your VIN and we’ll help verify it.

Year	Make	Model
1984	BMW	318i
1985	BMW	318i
1977	BMW	320i
1978	BMW	320i
1979	BMW	320i
1980	BMW	320i
1981	BMW	320i
1982	BMW	320i
1983	BMW	320i
1986	BMW	325
1987	BMW	325
1988	BMW	325
1984	BMW	325e
1985	BMW	325e
1986	BMW	325e
1987	BMW	325e
1986	BMW	325es
1987	BMW	325es
1982	BMW	528e
1983	BMW	528e
1984	BMW	528e
1985	BMW	528e
1986	BMW	528e
1987	BMW	528e
1988	BMW	528e
1979	BMW	528i
1980	BMW	528i
1981	BMW	528i
1983	BMW	533i
1984	BMW	533i
1985	BMW	535i
1986	BMW	535i
1987	BMW	535i
1988	BMW	535i
1988	BMW	535is
1977	BMW	630CSi
1978	BMW	630CSi
1980	BMW	633CSi
1981	BMW	633CSi
1983	BMW	633CSi
1984	BMW	633CSi
1985	BMW	635CSi
1986	BMW	635CSi
1987	BMW	635CSi
1988	BMW	635CSi
1989	BMW	635CSi
1980	BMW	733i
1981	BMW	733i
1983	BMW	733i
1984	BMW	733i
1985	BMW	735i
1986	BMW	735i
1987	BMW	735i
1988	BMW	M5
1987	BMW	M6
1988	BMW	M6
1976	Porsche	912
1977	Porsche	924
1978	Porsche	924
1979	Porsche	924
1980	Porsche	924
1981	Porsche	924
1982	Porsche	924
1978	Porsche	928
1979	Porsche	928
1980	Porsche	928
1981	Porsche	928
1982	Porsche	928
1983	Porsche	928
1984	Porsche	928

Thermo-Time Switch

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Bosch Thermo-Time Switch for Porsche 912/924/928 (1976–1984)