Thermostats Once again, to us, it is no shock to see other companies taking shortcuts to consolidate part numbers. Why have multiple perfect individual parts when you can have 1 part that "works" for a bunch of applications? Well, Beck/Arnley missed that memo and is still sourcing part-by-part to ensure that you don't end up taking a thermostat out of your vehicle and replacing it with something that isn't OE Quality. Beck/Arnley offers OEM temperature spec thermostats, however, we also offer alternate temperatures to allow you to have a better adapted engine heating/cooling temperature based on your climate. We offer some thermostats that include the built in housing and some even include a coolant temperature sensor.