BWD® is an aftermarket leader, providing a premium line of engine management products. BWD® manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD® is constantly evolving to give customers the competitive edge they need to compete in today's ever-changing marketplace.

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 manufacture, we custom form the wax pellets for different temperature range specifications. All units are calibrated & tested to confirm switch actuation at their specified temperature 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 In production, all thermal switches are factory-calibrated to make electrical contact at the specified lower-temperature set point Our switches feature a robust design with high grade materials to meet the stringent demands of today's service professional Terminal Quantity : 2