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Kysor · Probes & Sensors
1002-05511-37
In stock · ships from Knoxville
This is a Kysor Alarmstat high-temperature switch, not a low coolant sensor despite the listing title.
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Peterbilt
Peterbilt
Often mislabeled as a low coolant switch. This part is a temperature switch for overheat alarm; check that your truck needs an alarmstat, not a coolant level sensor.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 3 of 3.
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It monitors coolant temperature and is normally open, closing at 225°F (107°C) to trigger an overheat warning light or buzzer, helping prevent engine damage. Commonly used on Paccar (Kenworth/Peterbilt) trucks, it replaces a faulty overheat alarm switch. Always verify that your application calls for an overheat alarmstat rather than a coolant level switch before purchasing.
Part Number: 1002-05511-37
LOW COOLANT SWITCH
Vendor: Peterbilt of Knoxville
Dealer: KP Services Crossville
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