BWD TFS518 Engine Cooling Fan Switch

Buyer fitment guide only intended as reference. Please use catalogue search by vehicle to ensure proper fitment.

• Kem RF70
• ACDelco 88923746
• ACDelco E1876C
• Airtex 1S4421
• Standard Ignition TS-218
• Wells SW585
• CARQUEST Premium By WELLS 53-13883
• Four Seasons 37411
• CARQUEST Premium By WELLS 5313883
• Standard Ignition TS218
• Audi 811 959 481
• Volkswagen 811 959 481
• Echlin FS152
• Duralast SW585
• Audi 811959481
• Hella 007801011

• BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
• In design, we specify custom wax formulations that will expand when heated, activate a snap action electrical contact and transfer the electrical signal to the fan controller
• In manufacturing, we custom form the wax pellets for different temperature range specifications. All units are calibrated and tested to confirm switch actuation at their specified temperature
• In production, all thermal switches are factory-calibrated to make electrical contact at the specified lower-temperature set point
• Robust design and high grade materials meet the stringent demands of today's service professional
• The switch is designed using a formed bimetallic contact arm. The bimetal contact movement is achieved using the different expansion rates of two metals fused together. This is a creep action device, provides precise performance