WEAPC Water Temperature Sensor 3944837 394-4837 Compatible with E312D2 E320D2 Engine, Excavator Replacement Part

WEAPC Water Temperature Sensor 3944837 394-4837 Compatible with E312D2 E320D2 Engine, Excavator Replacement Part Product Overview The 3944837 water temperature sensor is a precision-engineered component designed to measure coolant temperature in Perkins and Caterpillar engines. By transmitting accurate temperature data to the engine control unit (ECU), it helps prevent overheating, ensures efficient combustion, and prolongs engine life. ApplicationsGenerator sets: Perkins-powered gensets (C4.4, 1100 Series) and Caterpillar gensets.Construction machinery: Caterpillar 312D2, 312GC, 320D2, 313D2, 318D2, 315D excavators and loaders.Industrial equipment: Compressors, pumps, and other Perkins/CAT-powered machinery. Technical SpecificationsPart number: 3944837 / 394-4837Function: Coolant water temperature sensorCategory: Engine Monitoring & Protection SystemMaterial: OEM-grade sensor housing with corrosion-resistant finishVoltage range: Standard 8–36V DC signal outputMeasurement range: -40°C to +150°C (depending on coolant system)Compatible engines: Perkins C4.4, 1103, 1104, 1106; Caterpillar 312D2, 320D2, 313D2, 318D2, 315DWarranty: 12 monthsInterchange part numbers 3944837 ↔ 3944833 ↔ 3944835

• Accurate Monitoring – Measures coolant temperature, prevents overheating, and ensures efficient combustion
• Engine Compatibility – Fits Perkins C4.4, 1103, 1104, 1106 and Caterpillar 312D2, 320D2, 315D
• Wide Application – Common in gensets, excavators, loaders, compressors, pumps, and industrial machinery
• Durable Build – OEM‑grade housing with corrosion‑resistant finish; reliable under harsh conditions
• Interchangeable Parts – Replaces 3944837, 3944833, 3944835; backed by 12‑month warranty