CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts

CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts

$20.00
$20.00
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CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts
  • CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts
  • CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts
  • CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts
  • CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts
  • CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts
  • CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts
  • CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts
  • CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts
CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts

CAT 165-6634 111-3794 Coolant Level Sensor | Caterpillar 3508 3512 3516 Parts

$20.00
$20.00

165-6634 111-3794 Caterpillar Coolant Level Sensor

OEM-grade engine coolant level sensor (Part No. 165-6634 / 111-3794) engineered specifically for Caterpillar 3500 series large-bore diesel engines, including 3508, 3512, and 3516 configurations. Installed directly into the radiator expansion tank or surge tank to continuously detect coolant fluid levels. Transmits real-time alert signals to the engine monitoring control panel and Electronic Control Module (ADEM / ECM), warning operators of low coolant conditions to prevent catastrophic cylinder head cracking, severe thermal stress, and engine overheating.

Part Specifications

  • Part Numbers: 165-6634 (1656634), 111-3794 (1113794)
  • Brand: Caterpillar (CAT)
  • Component: Engine Coolant Level Sensor (Sensor GP-Coolant Level / Sensor AS-Level)
  • Condition: New / OEM Replacement
  • Connector Type: Weather-Sealed Multi-Pin Electrical Connector
  • Country of Origin: China
  • HS Code: 9026.10
  • Application: Heavy-Duty Engine Cooling System & Protection

Compatible Caterpillar Engine Models

Engineered for high-horsepower Caterpillar commercial, marine, industrial, and generator set platforms, including:

  • Caterpillar 3500 Series: 3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C
  • Applications: Marine Propulsion & Auxiliary Power, Diesel Locomotive Power, Heavy Mining Trucks, Petroleum Pumping Units, and Standby / Prime Diesel Generator Sets
  • Please verify engine serial number and terminal connection before ordering.

Cross-Reference & Alternate Part Numbers

165-6634 | 1656634 | 111-3794 | 1113794 | 239-9957 | 2399957 | 430-9449 | 4309449 | 362-2913 | 3622913 | CAT1656634

Why Choose Us?

  • Global B2B wholesale supply for heavy equipment fleets and rebuild facilities
  • Competitive bulk tier pricing and reliable inventory availability
  • Rigorous thermal shock, vibration, and liquid seal testing
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