Part of emissions control system
A metallic and/or non-metallic device with various ports on one end and a wrenching facility between ends. The opposite end may be threaded and contain a temperature probe. It is normally located on the upper engine block, on the water jacket or screwed into the upper radiator tank. Depending on individual temperature calibration it opens or closes various ports in order to channel manifold vacuum to devices which activate, de-activate or modify functions in fuel economy, cold temperature override, thermal ignition control, exhaust gas recirculation and other systems by sensing engine water temperature.
Classification: Parts for spark-ignition internal combustion piston engines, nesoi
NSN 6145-01-172-3363
NSN 5895-00-935-1337
NSN 4140-00-500-2718
NSN 5998-01-422-3162
NSN 4140-01-114-6633
NSN 6645-01-147-5579
NSN 4140-01-519-9343
NSN 6240-01-245-8996
NSN 6145-01-217-4749
NSN 5920-01-158-4517
NSN 6620-01-521-0580
NSN 5925-00-813-2474