Fan clutch for automobile
Thermal fan clutch - Find your car parts
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MITSUBISHIInformation - Engine fan clutch
Viscous fan coupling: replacement and selection
When and why it is necessary to replace viscous fan coupling
Manufacturers do not specify the intervals of the viscous fan coupling replacement. Part replacement is performed at its jamming, cracking or deformation of the heated plate or casing, in case of free play or mechanical damage of the bearing, working liquid leakage, and loss of ability of liquid to transmit rotational torque.
As a rule, the cause of working liquid leakage lies in seal elements elasticity loss. Changing of liquid operational characteristics occurs in course of time due to contamination by wear debris and oxidation products. Breakages of the bearing usually occur as a result of impacts, metal fatigue wear and abrasive wear appearing due to grease contamination. Damaging of the heated plate can happen as a result of impact, for instance in a road accident, and due to specifics of its operation (frequent bending and unbending).
Defectiveness of the viscous coupling is indicated by increasing of engine temperature at idling or low rpm (for example, in a traffic jam).
It is recommended to perform replacement of the viscous fan coupling at a service station, as access to this component is complicated. Also, during the procedure, special equipment can be necessary.
How to select viscous fan coupling
The viscous fan couplings for various cars are presented in the assortment of such brands as Swag, Thermotec, Van Wezel, Dasis. The components of these brands are notable for durability and high quality.
In order to select the part properly, you need to take into account the car model, production year and the engine type. Particularly, compatibility of the part by outer diameter, mounting seat diameter, and quantity of mounting holes depends on this.
Fan clutch at low cost: Top Spares
Article №: 509C0029 
- Operating Mode Hydraulic
- Condition New
Article №: 8MV 376 732-231 
- Number of Thread Bores 4
- Diameter [mm] 138
- Version produced by BEHR
- Supplementary Info BEHR HELLA SERVICE *** PREMIUM LINE ***
- Condition New
Article №: 49584 
- Heating/Cooling for vehicles with fan (fluid friction coupling), without fan
- Diameter [mm] 139
- Height [mm] 71
- Operating Mode Thermic
- Condition New
Article №: 18685 
- Weight [kg] 0,893
- Condition New
Article №: 314 115 2101 
- Diameter [mm] 138
- Supplementary Info MEYLE-ORIGINAL Quality
- Condition New
Article №: 500 404 
- Heating/Cooling Fluid Friction Coupling
- Manufacturer Restriction Behr
- Condition New
Article №: 128260N 
- Hole Pitch 1/ Hole Pitch 2 131mm
- Diameter [mm] 151
- Weight [kg] 0,997
- Thread Size 28mm
- Spanner Size 36mm
- Weight [g] 1000
- New Part
- Packaging length [cm] 17,5
- Packaging width [cm] 17,2
- Packaging height [cm] 8,8
- Condition New
Article №: 058250N 
- Hole Pitch 1/ Hole Pitch 2 127mm
- Diameter [mm] 160
- Weight [kg] 0,907
- Thread Size 22mm
- Spanner Size 32mm
- Weight [g] 907
- New Part
- Packaging length [cm] 16,5
- Packaging width [cm] 16,5
- Packaging height [cm] 7,5
- Condition New
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