This heavy-duty thermostat is designed for use in Western Star 4900EX, 4900FA, and 6900XD models from 2005 to 2017. It is made by MotoRad and has a manufacturer part number of 4061-60. The thermostat is a engine coolant thermostat and comes in a quantity of 1. It has a brand of MotoRad and is backed by a manufacturer warranty of Other. The SKU for this product is 8-A:4061-60.