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Low Coolant Detection – The sensor provides a low-coolant alarm with a built-in 10-second delay to prevent false readings.
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Rugged Construction – Made from bichromate-dipped brass that resists coolant exposure and adverse chemical conditions; designed without moving parts for enhanced longevity.
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Robust Electrical Interface – Features a 4-prong connector for dependable signal delivery.
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Easy Mounting – Standard ¼″ NPT threaded design ensures compatibility with most radiator ports.
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Versatile Fitment – Direct replacement for Freightliner, Navistar, and other OEM part references, supporting engine protection/shutdown functionality
Coolant Level Sensor – RSC85927C1, Navistar 1673785C92
$49.99Current price is: $49.99. Original price was: $59.99.
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Detects low coolant levels and triggers engine protection or shutdown
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Mounts directly on top of the radiator for reliable placement
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4-prong connector, ¼″ NPT threaded body, chemically resistant brass housing
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No internal moving parts for enhanced durability


