| Parameter | Specification |
|---|---|
| OEM Number | 860126157 |
| Brand | XCMG (Original Equipment) |
| Sensor Type | NTC Thermistor (Negative Temperature Coefficient) |
| Thread Size | M14 x 1.5 mm |
| Connector Type | 2-pin waterproof (Deutsch / AMP compatible) |
| Resistance @ 25°C | 2.5 kΩ ±5% |
| Resistance @ 80°C | 290 Ω ±4% |
| Resistance @ 100°C | 175 Ω ±3% |
| Operating Temperature Range | -40°C to +150°C |
| Response Time (in water) | ≤ 8 seconds (63.2% step change) |
| Sealing Class | IP67 (with mating connector) |
| Housing Material | Brass with nickel plating / high-temp polymer |
| Compatible XCMG Graders | GR135, GR165, GR180, GR200, GR2003, GR215, GR260, GR300 series |
The XCMG 860126157 Temperature Sensor employs a hermetically sealed NTC thermistor element that provides a highly predictable negative temperature coefficient. As coolant temperature rises, resistance drops linearly, allowing the engine ECU to calculate exact temperature with ±1.5°C accuracy. This precision is critical for modern XCMG graders equipped with electronic injection and aftertreatment systems.
Unlike low-quality aftermarket sensors that suffer from thermal drift, the genuine 860126157 is laser-trimmed at five temperature points (-20°C, 0°C, 25°C, 80°C, 120°C) to guarantee conformity to the factory resistance table. The glass-coated thermistor bead resists moisture ingress and vibration-induced cracking, ensuring stable readings over thousands of operating hours.
The 860126157 sensor outputs a clean analog voltage (typically 0.3V at 130°C to 4.8V at -40°C when used with a 5V pull-up). XCMG’s engine management relies on this data for critical functions: adjusting injection timing, controlling the viscous fan clutch, enabling cold start glow plugs, and preventing head gasket failure. A drifting or erratic sensor can trigger false check-engine lights, reduced power mode, or poor fuel economy.
By installing genuine 860126157, you restore factory-spec temperature reporting. The sensor’s internal construction minimizes self-heating error, and the gold-plated terminals ensure a corrosion-free connection even in high-humidity environments. This level of reliability is especially important for graders working in extreme climates, from Canadian winter road maintenance to Australian mine sites.
Replacing the temperature sensor (part 860126157) is straightforward. Always work on a cool engine to avoid burns and pressure. Drain coolant below the sensor port or be prepared to catch minor spillage. Disconnect the electrical plug by pressing the locking tab. Using a 22mm deep socket or crowfoot wrench, unscrew the old sensor counterclockwise.
Clean the threads in the cylinder head or thermostat housing. Apply a small amount of anti-seize compound to the new 860126157 sensor threads (avoid the sensing tip). Hand-start then torque to 18-22 N·m – overtightening can crack the brass housing. Reconnect the harness plug until it clicks. Refill coolant and bleed air according to your grader’s manual.
After installation, start the engine and verify that the temperature gauge rises steadily. Use a diagnostic scanner to compare the sensor reading with an infrared thermometer on the thermostat housing – they should match within 3°C. If not, check wiring resistance or replace the sensor. Always use genuine 860126157 for guaranteed calibration.
Using the XCMG 860126157 sensor directly improves engine protection. Accurate temperature data prevents the ECU from over-fueling during warm-up (reducing cylinder wash and oil dilution) and enables precise fan activation, which lowers parasitic drag and saves fuel. Field data from XCMG GR2003 graders shows that genuine sensors last over 12,000 hours, while generic units often fail within 2,500 hours due to internal corrosion or cracked thermistors.
The sensor’s robust design includes a viton O-ring pre-installed at the base, sealing against coolant leaks even under 2.5 bar pressure. The brass housing dissipates heat evenly, preventing localized overheating of the sensing element. XCMG’s validation includes 15,000 thermal cycles from -40°C to +135°C, ensuring no drift or seal failure.
≤8 sec thermal response, protects against overheating.
Waterproof connector, withstands pressure washing and dust.
12,000+ hours proven in heavy-duty grading.
The XCMG 860126157 temperature sensor replaces older part numbers: 860126156, 612640030011, and 3836006. It is identical to sensors used on Cummins QSB, Deutz TCD, and Weichai engines found in XCMG graders. Always verify the connector shape (2-pin, rectangular with locking tab) and thread size before ordering.
Each genuine 860126157 sensor is supplied in a sealed XCMG bag with a desiccant pouch and includes a new copper sealing washer. For bulk orders (5+ pieces), batch test certificates are available. Avoid costly engine damage caused by inaccurate aftermarket sensors – choose OEM.
Counterfeit temperature sensors often use cheap epoxy-sealed thermistors that degrade quickly, leading to incorrect resistance values. Some fakes have undersized threads or poor plating, causing coolant leaks and seizure. Always purchase 860126157 from authorized XCMG distributors. The genuine sensor features a laser-etched XCMG logo and a green dot on the connector face. Verify the resistance at 25°C before installation.
Test the 860126157 sensor every 2,000 hours using a digital multimeter. Measure resistance between the two pins: at 25°C (room temp) it should read 2.2kΩ – 2.8kΩ. Dip the tip in boiling water (100°C) – resistance must drop to 160–190Ω. If out of range, replace immediately. Also inspect the wiring harness for chafing or loose pins.
During cooling system service (every 4,000 hours), replace the sensor preemptively to avoid unexpected failure. Use only XCMG-approved coolant with proper corrosion inhibitors to extend sensor life. The 860126157 is compatible with all ethylene glycol and OAT-based coolants.
XCMG graders are used worldwide in construction, mining, and road maintenance. The 860126157 temperature sensor is manufactured in an IATF 16949 certified facility, with 100% end-of-line functional testing. Each sensor is marked with a production date code and batch number for full traceability. By choosing genuine, you ensure that your grader’s engine management system receives accurate data, maximizing uptime and minimizing repair costs.
For fleet managers, stocking the 860126157 sensor reduces diagnostic headaches – when a temperature fault appears, you can confidently replace the sensor knowing it will solve the issue. Keep one spare per three graders to avoid emergency downtime. Order today through the buttons above.
*All technical data based on XCMG original equipment specifications. Part number 860126157 is a registered OEM component. Always refer to your grader’s service manual before installation.
For any inquiries regarding the 860126157 XCMG Temperature Sensor or other motor grader parts, please contact our parts specialists via the “Send Email” or “Inquiry Now” buttons above. We provide 100% genuine components with global logistics support.
