Attachment method for fan component assemblies

A fan attachment is provided to attach a fan assembly to a cap of a heat exchanger. The fan attachment includes a feature to manage wires going to the fan motor, a notch for a thermister to sense temperature, snap hooks to be engaged by receiving tabs of the cap, a keying shear load feature to radially align the fan attachment and cap, and Z-height tolerance springs to bias the fan attachment away from the cap. The cap has features to interact with those of the fan attachment, including receiving tabs. The fan attachment may be manually aligned and forced so that the snap hooks are received and engaged by the receiving tabs. Additionally, the snap hooks and keying feature are, in combination, capable of supporting fan and attach mechanism in an undamaged condition during 25 g-force shock to the heat exchanger.