Viscous coupling – Mercedes R129 W140 – M103 M104 engine

Description

Viscous coupling radiator fan – Mercedes R129 W124 W140 W210 – M103 M104 engine

Viscous coupling for the mechanically driven radiator fan, suitable for various Mercedes models with M103 and M104 engines.

The viscous coupling regulates the drive of the cooling fan depending on the temperature. As the cooling demand increases, the fan is driven more strongly, moving more air through the radiator. A defective viscous coupling can lead to insufficient engine cooling, especially at low driving speeds, idling, and in warm weather.

Suitable for Mercedes models

R129

• 280 SL – 129,058 – M104,943 – 08-1993 to 10-2001 – 142 kW – 193 hp
• 300 SL – 129.060 – M103.984 – 03-1989 to 08-1993 – 140 kW – 190 hp
• 300 SL-24 – 129.061 – M104.981 – 03-1989 to 07-1993 – 170 kW – 231 hp
• SL 320 – 129.063 – M104.991 – 09-1993 to 10-2001 – 170 kW – 231 hp

A124

• E 320 – 124.066 – M104.992 – 06-1993 to 03-1998 – 162 kW – 220 hp

W140

• 300 SE 2.8 – 140,028
• S 280 – 140.028
• 300 SE – 300 SEL – S 320 – 140.032 and 140.033

W210

• E 280 – 210.053 – M104.945 – 01-1996 to 06-1997 – 142 kW – 193 hp

Specifications

1. Part: radiator fan viscous coupling
2. Operating mode: thermal
3. Diameter: 160 mm
4. Hole spacing: 130.5 mm
5. Thread size: 10 mm
6. Suitable for manual and automatic transmissions
7. Application: engine cooling
8. Mercedes OEM number: 1032000622
9. Also listed as: A1032000622

Additional information

1. Regulates the drive of the mechanical radiator fan depending on the cooling demand.
2. Ensures that the fan is driven more strongly as the temperature increases.
3. A defective viscous coupling can lead to insufficient cooling, especially at low driving speeds and when stationary.
4. When replacing, also check the radiator fan, mounting, and other parts of the cooling system.
5. Depending on the year of manufacture and vehicle version, a different viscous coupling may have been used.

NB: For a number of the mentioned versions, the supplier indicates that this viscous coupling is intended for vehicles. without air conditioning. Mercedes does not provide a clear description regarding this. Therefore, carefully check the installed version, the Mercedes OEM number, and the dimensions before ordering.

Always check before purchase and installation whether the part is suitable and equivalent based on photos, description, and specifications; installed or used parts cannot be returned.