BWD TFS688 Engine Cooling Fan Switch

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

• CARQUEST Standard 51766
• Four Seasons 36532
• Kem RF46
• Mighty 2-1922
• ACDelco 15-50363
• ACDelco 89057817
• Chrysler 4221284
• Airtex 1S4372
• Standard Ignition TS-165
• Wells 51766
• Wells SW530
• MTE-THOMSON 3741
• MTE-THOMSON 3746
• CARQUEST Premium By WELLS 53-13833
• Four Seasons 37389
• ACDelco 1550363
• Mighty 21922
• CARQUEST Premium By WELLS 5313833
• Standard Ignition TS165
• Echlin FS324
• Duralast 51766
• Duralast SW530
• Walker Products 2121004

• 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