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Hella 007837101 Engine Cooling Fan Switch
Hella Engine Cooling Fan Switch 007837101
The Hella 007837101 engine cooling fan switch is a 12V, 3-pin thermal switch built for vehicles that use a normally open contact and a bolted M14 x 1.5 mounting design. It switches at 75°C to 88°C, helping control electric cooling fan operation in confirmed BMW applications including 318i, 318ti, and Z3 models.
Key Features
- Part number: 007837101
- 12V DC engine cooling fan switch
- Double thermal switch with normally open contact
- 3 terminals / 3-pin round plug design
- M14 x 1.5 thread size with bolted mounting
- Switch point range: 75°C to 88°C (167°F to 190.4°F)
- Black female connector with male bullet terminals
- No gasket or seal included
- No wiring harness included
Detailed Description
Hella 007837101 is an engine cooling fan switch engineered for thermal fan control in select BMW cooling systems. It uses a 3-pin, round-plug electrical connection and a normally open contact layout, with a dual thermal switching range that activates between 75°C and 88°C. This configuration supports fan engagement based on coolant temperature, making it a direct-match option for BMW 318i, BMW 318ti, and BMW Z3 applications listed below. This part cross-references Hayden 2706 for the same application.
What It Helps Address
- Cooling fan that does not switch on at the correct temperature
- Fan operation that starts too late or too early
- Temperature-related overheating concerns tied to fan control
- Faulty thermal switch signal in the cooling circuit
- Electrical connection issues at the fan switch due to worn terminals
Installation Notes and Tips
Verify the thread size, connector style, terminal count, and switch temperature range before installation. This unit uses an M14 x 1.5 threaded, bolted mount with a 24 mm hex size and a 3-pin round plug connection. Professional installation is required for proper cooling-system service, and the cooling system should be checked for leaks and correct coolant level after replacement.
- Fits 1996-1998 BMW 318i, N/A
- Fits 1997 BMW 318ti, N/A
- Fits 1996 BMW 318ti, N/A
- Fits 1997 BMW Z3, N/A
- Fits 1996 BMW Z3, N/A
- Fits 1995 BMW 318ti, N/A
Quality Assurance
Hella supplies a broad range of vehicle switches with a focus on consistent build quality and OE-style electrical fitment. Part number 007837101 is built to the listed specifications for confirmed BMW cooling fan switch applications.
| Brand | Hella |
|---|---|
| Part Number | 007837101 |
| 11589 | Metric |
| Voltage | 12.00 |
| Connector Color | Black |
| Terminal Type | Bullet |
| Connector Quantity | 1 |
| Gasket Or Seal Included | No |
| Terminal Quantity | 3 |
| Connector Gender | Female |
| Terminal Gender | Male |
| Head Tool Size | 24.00 |
| Wiring Harness Included | No |
| Thread Size | M14 - 1.5 |
| Assy/Disassy by Qualified Personnel Required! | . |
| Combi Switch Function | Normally open contact |
| Mounting Type | Bolted |
| Number of pins | 3 |
| Plug Type | Round plug |
| Spanner Size [mm] | 24 |
| Switch | With double thermal switch |
| Switch point from [°C] | 75 |
| Switch point from [°F] | 167 |
| Switch point to [°C] | 88 |
| Switch point to [°F] | 190.4 |
| Thread Size | M14 x 1.5 |
| Voltage [VDC] | 12 |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1998 | BMW | 318i | Base | N/A | 12V - 3-Pin Connector - Round Plug - Bolted - Dual Output/Normally Open Contact | ||
| 1997 | BMW | 318i | Base | N/A | 12V - 3-Pin Connector - Round Plug - Bolted - Dual Output/Normally Open Contact | ||
| 1997 | BMW | 318ti | Base | N/A | To 03/1997 | ||
| 1997 | BMW | Z3 | Roadster | 1.9L | L4 | N/A | To 03/1997 |
| 1996 | BMW | 318i | Base | N/A | 12V - 3-Pin Connector - Round Plug - Bolted - Dual Output/Normally Open Contact | ||
| 1996 | BMW | 318ti | Base | N/A | 12V - 3-Pin Connector - Round Plug - Bolted - Dual Output/Normally Open Contact | ||
| 1996 | BMW | Z3 | Roadster | N/A | From 07/1996 | ||
| 1995 | BMW | 318ti | Base | N/A | 80-88 Degrees C |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.