The thermostat that is found in your 1996 Volkswagen Jetta is essential in controlling the engine’s warming up period. Similar with human beings, warming up the car’s engine system is also important if you want your engine to perform excellently. Thermostat is actually found between the engine and the radiator and is kept close when the engine is warming up. This then prevents the coolant to get out of the engine before proper temperature is reached. When the right temperature takes place, that’s the time when the spring valve is opened. This correct temperature is helpful in burning more pollutants that can be of great advantage in emission controlling. But the proper function of the thermostat may vary according to the condition of its housing. Trouble with its housing may actually cause the thermostat to affect the engine. The result is wearing of the engine as well as an increase in fuel consumption. Replacing the thermostat housing when you noticed that it’s old and weary is important to restore the thermostat’s function. This housing is mounted to the engine. You can remove it by unfastening the pair of bolts found on its top. Installing a new set is actually easy. And for your 1996 Volkswagen Jetta, the Aftermarket thermostat housing will do better. Its design ensures an exact fitting with its OEM specifications. Quality and durability are also expected in this product. Now if you want to learn more about this product, you can always talk to our customer service representative.