Yuchai engine spare parts temperature sensor K08-1205250-14

Built to monitor engine coolant and oil temperature with exceptional accuracy, this sensor adopts a negative temperature coefficient (NTC) thermistor core with a measurement range of -40℃ to 150℃—covering all operating conditions of Yuchai engines. It delivers a temperature resolution of ±0.1℃ and a measurement error of ≤±1℃, outperforming the ±2℃ industry average. For coolant temperature monitoring, it transmits real-time data to the ECU, enabling precise adjustment of the thermostat and cooling fan—maintaining engine temperature at 82-90℃ for optimal fuel efficiency. For oil temperature detection, it triggers warnings when temperatures exceed 120℃, preventing lubrication failure. The sensor’s response time is ≤200ms, ensuring the ECU receives timely data to avoid overheating or cold-start wear

Engineered for the extreme environment of engine compartments (high temperature, vibration, oil mist), the sensor features a durable, anti-interference structure. The housing is made of 304 stainless steel, resisting corrosion from coolant, engine oil, and chemical additives—with no rust after 1000-hour immersion in coolant. The sensing probe is encapsulated in a ceramic sleeve, protecting the thermistor from mechanical impact and thermal shock. The 3-pin connector uses a Viton O-ring seal, achieving IP67 waterproof/dustproof rating and preventing moisture intrusion. The sensor withstands 20g vibration loads (5-2000Hz, ISO 16750-3) and 500 thermal cycles (-30℃ to 140℃) without performance degradation, ensuring stable operation in off-road and heavy-load scenarios

Designed to adapt to Yuchai engines’ diverse operating regions—from frigid northeast China to hot and humid southern areas—the sensor exhibits exceptional environmental resilience. It operates stably at ambient temperatures ranging from -40℃ to 125℃, with the thermistor maintaining consistent resistance-temperature characteristics even in extreme cold (ensuring accurate cold-start data) and high heat (avoiding signal drift). The sensor’s wiring harness uses high-temperature cross-linked polyethylene (XLPE) insulation, resisting 150℃ continuous heat and -40℃ cold without cracking. It also resists electromagnetic interference (EMI) from the engine and electrical system, with a signal-to-noise ratio (SNR) ≥85dB, ensuring reliable data transmission in environments with strong electrical interference (e.g., construction sites with heavy machinery)

Optimized for efficient fleet maintenance and repair, the temperature sensor features a user-friendly plug-and-play design. The M12×1.5 threaded base allows installation with a standard wrench, requiring a torque of 25-30N·m to secure—no specialized tools needed. The 3-pin waterproof connector plugs directly into the engine wiring harness, eliminating on-site crimping or soldering. A single technician can complete replacement in 10 minutes, 60% faster than non-OE sensors. The sensor’s long service life (≥150,000km) and self-diagnostic function (transmitting fault codes to the ECU if it malfunctions) reduce maintenance frequency and costs. Clear laser markings on the housing (“COOLANT”/“OIL” for different applications) prevent installation errors, ensuring the sensor is used in the correct system for maximum engine protection