The genuine XCMG 803792169 Temperature Sensor is a precision NTC thermistor sender for motor grader engine coolant, hydraulic oil, and transmission temperature monitoring.
This OEM 803792169 sensor features a brass housing, integral sealing washer, and a 2‑pin AMP connector for direct plug‑and‑play replacement.
It provides a variable resistance signal to the cab gauge or ECU, allowing the operator to monitor critical temperatures and avoid overheating.
Engineered for XCMG GR135, GR165, GR180, GR215, GR260, GR300, and GR350 motor graders, this sensor is a direct replacement for original equipment.
A faulty temperature sensor can cause erratic gauge readings, false warnings, or engine damage due to undetected overheating. Replacing a failed sensor with genuine XCMG 803792169 restores accurate temperature feedback and operator confidence.
This sensor is also used in charge air temperature monitoring and fuel temperature circuits. XCMG 803792169 guarantees OE fit, correct resistance curve, and long‑term reliability.
| Parameter | Specification |
|---|---|
| OEM Number | 803792169 |
| Brand | XCMG (Genuine Original Equipment) |
| Sensor Type | NTC thermistor (negative temperature coefficient) |
| Thread Size | M14 × 1.5 (tapered) |
| Hex Size (Wrench) | 22 mm (7/8 in) |
| Electrical Connection | 2‑pin AMP Junior Power Timer (male) |
| Resistance at 25°C (nominal) | 2500 Ω ±5% |
| Resistance at 100°C | 180 Ω ±3% |
| Resistance at 120°C | 100 Ω ±3% |
| Operating Temperature Range | -40°C to +150°C (continuous) |
| Maximum Pressure | 1.5 MPa (15 bar) |
| Body Material | Brass (nickel‑plated) |
| Seal Type | Integrated copper washer (included) |
| Insulation Resistance (at 500V) | ≥ 100 MΩ |
| Response Time (in water) | ≤ 15 seconds (63% of step change) |
| Standards | ISO 1042, SAE J1351 |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350 |
| Superseded Part Numbers | 803792150, 803792162, 803792165 |
The 803792169 temperature sensor monitors the engine coolant temperature and sends a variable resistance signal to the cab gauge or ECU.
If the engine overheats, the sensor triggers a warning light or buzzer, allowing the operator to shut down before costly damage occurs. A failed sensor provides no warning, risking seized pistons or cracked heads.
In the hydraulic system, it monitors oil temperature. Excessive hydraulic oil temperature degrades seals, reduces viscosity, and damages pumps.
Replacing a faulty sensor with genuine XCMG 803792169 restores accurate temperature feedback, prevents undetected overheating, and ensures operator safety.
The NTC thermistor provides a steep resistance change with temperature, giving precise readings across the entire operating range.
Each 803792169 sensor uses a glass‑encapsulated NTC thermistor element for excellent stability and fast response. The element is embedded in thermally conductive epoxy inside the brass tip.
The housing is machined from solid brass and nickel‑plated to resist corrosion from coolant additives and salt spray. The integrated copper washer ensures a leak‑free seal after torquing.
The 2‑pin AMP connector is sealed with a rubber grommet to prevent moisture ingress. XCMG tests each sensor for resistance accuracy at three temperature points (25°C, 80°C, 120°C) with a tolerance of ±5%.
The sensor is also subjected to a thermal shock test: 100 cycles from -40°C to +150°C with less than 2% drift in resistance.
To replace a faulty temperature sensor, drain the coolant or fluid below the sensor level. Disconnect the electrical connector by releasing the locking tab.
Use a 22 mm socket or wrench to unscrew the old sensor. Clean the threaded port with a tap of the same size to remove old sealant or debris.
Apply a small amount of thread sealant to the new 803792169 sensor (do not use PTFE tape on tapered threads). Screw it in by hand until snug, then torque to 15‑20 Nm.
Reconnect the electrical connector, ensuring it clicks into place. Refill the coolant and run the engine. Check for leaks and verify the cab gauge reads expected temperature.
If the gauge still reads incorrectly, the problem may be in the wiring or the gauge itself. Keep a spare 803792169 sensor for rapid field replacement.
Temperature gauge stuck at full cold or full hot, erratic reading that jumps suddenly, warning light on despite normal operating temperature, and no reading at all.
Also, visible corrosion on the connector pins, coolant seepage around the sensor threads, and a resistance measurement that does not match published charts (open circuit or short).
Replace the sensor immediately if any of these symptoms appear – an inaccurate gauge can lead to undetected overheating and engine damage.
Inspect the temperature sensor during every coolant change or every 2,000 operating hours. Check the connector for corrosion and the threads for leaks.
XCMG recommends replacing the 803792169 sensor every 6,000‑8,000 hours or every 5 years, whichever comes first. In harsh environments (salt, high vibration), replace every 4,000 hours.
When replacing the sensor, also inspect the wiring harness for chafing or loose pins. A faulty connector can give false readings even with a new sensor.
Keep the sensor tip clean; a buildup of debris or scale can insulate the element and slow response time. Use only genuine XCMG sensors to guarantee the correct resistance curve.
Genuine XCMG 803792169 temperature sensors are backed by a 12‑month warranty. Regional warehouses: Houston (USA), Rotterdam (Netherlands), Dubai (UAE), Shanghai (China).
Standard air freight delivers within 3‑7 business days worldwide. Express 24‑48 hour shipping available for urgent engine repairs. Bulk orders (10+ sensors) receive volume discounts.
Aftermarket sensors often use low‑grade thermistors with incorrect resistance curves, leading to inaccurate gauge readings and potential engine damage. Genuine XCMG 803792169 ensures the precise R/T curve matched to your grader’s display.
Do not attempt to clean or reuse a failed sensor – the internal element cannot be repaired. Keep a genuine spare sensor in your parts inventory for quick replacement.
Order the genuine XCMG 803792169 Temperature Sensor today and maintain accurate temperature monitoring for your motor grader engine and hydraulic system.
Upgrade your grader’s protection system with XCMG genuine sensors – NTC precision, brass housing, and 100% tested.
