Thermostat housing for all Isuzu 4BD1 naturally aspirated versions including 4x4 Perenties. *** Specific Brand Part *** This product is not specific to one brand. If the product photo shows or the description lists a specific brand, we may provide you with the same or similar part of a different brand. For more information, please see our Terms and Conditions. aturally aspirated versions fitted to Land Rovers. Fitted to the front of the head. DOES NOT include thermostat or thermostat cover.