HomeBelts and Cooling > SwitchesVemo V20-99-1261 Engine Cooling Fan Switch
Part #: V20-99-1261

Vemo V20-99-1261 Engine Cooling Fan Switch

VEMO
⚙️ 19 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦VEMO
🚗Fitment: BMW, 528i, 540i, 740i, 740iL, and 750iL
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Overview of Vemo Engine Cooling Fan Switch V20-99-1261

The Vemo Engine Cooling Fan Switch V20-99-1261 is designed for precise temperature control in BMW vehicles. Specifically compatible with BMW 528i, 540i, 740i, 740iL, and 750iL models, this switch ensures reliable engine cooling system operation.

  • Diameter: 22 mm
  • Height: 50.5 mm
  • Length: 22 mm
  • Number of connectors: 3
  • Thread size: M14 x 1.5
  • Switch point temperature range: 81°C to 104°C
  • Weight: 0.050 kg

Detailed Product Description

The Vemo V20-99-1261 engine cooling fan switch is engineered to activate the cooling fan within a temperature range of 81°C to 104°C, maintaining optimal engine temperature. Its compact dimensions—22 mm diameter and length, with a height of 50.5 mm—allow for seamless integration into the cooling system. The switch features three connectors and a standard M14 x 1.5 thread size, ensuring compatibility with the specified BMW models. This part is part of the VEMO product line, known for delivering reliable and precise automotive electrical components designed to meet OEM specifications.

Compatible BMW Models and Applications

This engine cooling fan switch is compatible with the following BMW models:

  • BMW 528i
  • BMW 540i
  • BMW 740i and 740iL
  • BMW 750iL

It is specifically designed to regulate the engine cooling fan operation, preventing overheating and maintaining engine performance.

Common Issues Addressed by This Cooling Fan Switch

  • Engine overheating due to fan not activating
  • Intermittent cooling fan operation
  • Faulty temperature sensor causing incorrect fan engagement
  • Electrical connector failures affecting fan control
  • Inconsistent engine temperature regulation

Installation Notes and Tips

  • Ensure the engine is cool before installation to avoid burns
  • Verify thread size M14 x 1.5 matches the vehicle’s mounting point
  • Check and clean connector terminals for secure electrical contact
  • Use appropriate torque settings to avoid damage to the switch or housing
  • Test the cooling fan operation after installation to confirm proper function

Quality Assurance and Warranty

The Vemo V20-99-1261 engine cooling fan switch is manufactured to meet strict quality standards, ensuring durability and reliable performance. As part of the VEMO product line, it adheres to OEM specifications for fit and function. Warranty details should be confirmed with the distributor or retailer at the time of purchase.

BrandVemo
Part NumberV20-99-1261
PositionVEMO
Diameter [mm]22
Height [mm]50.5
Length [mm]22
Number of connectors3
Packaging Depth [cm]2,2
Packaging height [cm]5,05
Packaging width [cm]2,2
Switch point from [°C]104
Switch point to [°C]81
Thread SizeM14 x 1,5
Weight [kg]0.050
Width [mm]22

This part fits 19 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
1999BMW528iBase2.8LL6N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; To 09/1998; VEMO
1999BMW540iBase4.4LV8N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; To 09/1998; VEMO
1999BMW740iBase4.4LV8N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; To 09/1998; VEMO
1999BMW740iLBase4.4LV8N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; To 09/1998; VEMO
1998BMW528iBase2.8LL6N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1998BMW540iBase4.4LV8N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1998BMW740iBase4.4LV8N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1998BMW740iLBase4.4LV8N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1998BMW750iLBase5.4LV12N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1997BMW528iBase2.8LL6N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1997BMW540iBase4.4LV8N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1997BMW740iBase4.4LV8N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1997BMW740iLBase4.4LV8N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1997BMW750iLBase5.4LV12N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1996BMW740iLBase4.4LV8N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1996BMW750iLBase5.4LV12N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1995BMW740iBase4.0LV8N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1995BMW740iLBase4.0LV8N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO
1995BMW750iLBase5.4LV12N/AGrade: Aftermarket; Thread Size: M14 x 1,5; Temperature Range (Celsius): 104-94 / 91-81 C; Plug (Connector): 3 Pins; VEMO

* 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:

1S2815201177827053148100000383805041561 31 8 360 857756838 360 8578203178241211508591873SW3011TS2705TS581XEFS321

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.