XCMG NOx Sensor OEM 800172913 – Precision SCR Emissions Monitoring for Articulated Dump Trucks
NOx Sensor
Датчик NOx
Sensor de NOx
The genuine XCMG NOx Sensor with OEM number 800172913 is a precision electrochemical monitoring device engineered specifically for Selective Catalytic Reduction (SCR) aftertreatment systems on XCMG articulated dump trucks, including the XDA40, XDA45, XDA45U, XDA60, and TA30 models.
This high-performance nitrogen oxide sensor 800172913 provides real-time measurement of NOx concentrations in diesel exhaust, enabling the engine control unit to accurately regulate AdBlue® (diesel exhaust fluid) injection rates and ensure compliance with Euro Stage V and EPA Tier 4 Final emission standards.
Engineered to withstand extreme temperatures ranging from -40°C to +800°C at the probe tip and severe vibration conditions common in mining operations, the 800172913 NOx Sensor delivers exceptional service life and maximizes equipment uptime for fleet operators worldwide.
Manufactured under strict XCMG quality standards, the sensor features a robust ceramic sensing element that operates according to the amperometric double-chamber principle, along with a molded sensor control unit (SCU) protected by an IP67-rated housing that resists moisture and dust ingress in the harshest mining environments.
Using genuine OEM 800172913 ensures perfect compatibility with XCMG engine control modules (Mercedes-Benz OM460LA, OM502, Yuchai YC6K, and Weichai WP13), reducing diagnostic errors and unplanned maintenance while lowering total ownership cost for your articulated dump truck fleet.
Technical Specifications of OEM 800172913 NOx Sensor
The NOx Sensor 800172913 utilizes an advanced ceramic sensing element based on yttrium-stabilized zirconia (YSZ) electrolyte technology, operating according to the amperometric double-chamber principle for precise nitrogen oxide measurement across the entire exhaust temperature range.
Measuring range spans from 0 to 3,000 ppm NOx with exceptional accuracy of ±8% of the measured value across the full operating range, providing the ECU with reliable data for precise AdBlue dosage calculation and closed-loop control of the SCR aftertreatment system.
Response time is approximately 1,000 ms (≤1 second), enabling the SCR system to adapt instantly to changing engine loads, throttle inputs, and exhaust flow rates, maintaining NOx conversion efficiency above 92% even under transient operating conditions typical of mining haul cycles.
The sensor is designed for both 12V and 24V DC electrical systems, with a maximum power consumption of 75 watts during the heating phase and reduced current draw of approximately 0.5A–1.7A during normal measurement operation, compatible with XCMG alternator and battery configurations across all ADT models.
Light-off time (time from cold start to full measurement accuracy) is ≤60 seconds, achieved through an integrated heater element that rapidly raises the ceramic sensor element to its operating temperature of approximately 750°C–800°C, allowing the SCR system to begin NOx reduction immediately after engine startup.
The probe section features a thread size of M20 × 1.5 mm or M18 × 1.5 mm depending on the specific exhaust bung configuration, with a maximum permissible sensor control unit temperature of 140°C, requiring the SCU to be mounted away from direct exhaust heat sources using the factory-provided heat shield.
The sensor control unit communicates with the engine management system via Controller Area Network (CAN bus) protocol using SAE J1939 transmission protocol at 250K baud rate, transmitting continuous NOx concentration data, oxygen concentration data (0–21% range), and status signals for real-time diagnostic monitoring.
The sensor design includes a protective coating on the ceramic sensing element that increases resistance to thermal shock and chemical poisoning from sulfur, phosphorus, and other contaminants present in diesel fuel and lubricating oil, extending service life in high-sulfur fuel operating environments.
Critical Role of NOx Sensor 800172913 in SCR Aftertreatment Systems
The Selective Catalytic Reduction (SCR) system in XCMG articulated dump trucks injects AdBlue (32.5% urea solution) into the exhaust stream upstream of the SCR catalyst, where it converts harmful nitrogen oxides into harmless nitrogen gas and water vapor, reducing NOx emissions by 85–95% compared to non-SCR engines.
The NOx Sensor 800172913 is typically installed downstream of the SCR catalyst (post-SCR position) to measure the remaining NOx concentration after the catalytic reaction. The difference between upstream and downstream NOx readings allows the ECU to calculate real-time conversion efficiency and adjust AdBlue dosing accordingly.
In XCMG XDA45U articulated dump trucks equipped with the Mercedes-Benz OM460LA engine and Bosch SCR system, two NOx sensors are used: one upstream (pre-SCR) and one downstream (post-SCR). The 800172913 can serve as either sensor, providing critical feedback for closed-loop dosage control and emissions compliance monitoring.
When the engine operates at high load during uphill hauling in mining applications, NOx production increases significantly. The NOx Sensor 800172913 continuously monitors exhaust composition, enabling the ECU to increase AdBlue injection proportionally, maintaining conversion efficiency above 90% even under peak load conditions in extreme mining environments.
The sensor also performs on-board diagnostic (OBD) functions, detecting faults such as: SCR catalyst efficiency degradation, AdBlue quality issues, dosing system malfunctions, and sensor drift or circuit failures. If NOx readings exceed regulatory thresholds, the ECU triggers a diagnostic trouble code and may initiate engine torque derate for compliance enforcement.
Additionally, the NOx Sensor 800172913 can detect ammonia slip, which occurs when excess AdBlue is injected and ammonia passes through the catalyst without reacting. The sensor detects ammonia cross-sensitivity and signals the ECU to reduce injection quantity, preventing downstream deposits and optimizing reagent usage across the fleet.
Extreme Condition Performance & Durability Validation
Field validation tests on XCMG XDA45 articulated dump trucks operating in Australian iron ore mines show that the 800172913 NOx Sensor maintains measurement accuracy within specified tolerances after 6,000 hours of continuous operation, with no significant signal drift or sensitivity degradation observed in the ceramic sensing element even under continuous high-soot exhaust conditions.
Thermal shock testing from ambient temperature to 800°C for 500 cycles (each cycle: 30 seconds at 800°C, 30 seconds forced cooling) resulted in no cracking of the ceramic element, no change in sensor response time, and no degradation of the protective coating that prevents sulfur poisoning of the sensing electrode.
Vibration endurance according to ISO 16750-3 (random vibration profile for off-highway vehicles with 5G peak acceleration across three orthogonal axes) confirmed no mechanical failure, no intermittent signal loss, and no connector loosening after 500 hours of continuous simulation of severe haul road conditions typical of mining operations.
The sensor control unit (SCU) has passed IP67 and IP69K ingress protection tests, withstanding high-pressure water jets (at 100 bar, 80°C) during daily washing operations and complete immersion in muddy water for 30 minutes without moisture ingress into the sealed electronics cavity or damage to the circuit board components.
Chemical exposure testing to diesel exhaust condensate, AdBlue residues, sulfur compounds (up to 500 ppm fuel sulfur content), and chloride salts (common in underground mining environments) for 3,000 hours resulted in no corrosion of the probe housing or connector pins, and no degradation of the wiring harness insulation materials that could cause signal interference.
Technical Data Sheet – NOx Sensor (OEM 800172913)
| Parameter | Specification (NOx Sensor – 800172913) |
|---|
| OEM Part Number | 800172913 |
| Product Name | NOx Sensor / Nitrogen Oxide Sensor / SCR Downstream/Upstream Sensor |
| Brand | XCMG (Genuine OEM) |
| Sensor Type | Amperometric ceramic NOx sensor (YSZ electrolyte) |
| Measuring Principle | Double-chamber amperometric (pump current measurement with electrochemical cell) |
| Measuring Range (NOx) | 0 to 3,000 ppm (standard configuration) |
| Measuring Range (O2) | 0 to 21% (oxygen concentration in exhaust) |
| Accuracy | ±8% of measured value over full measuring range |
| Resolution | ≤ 5 ppm (typically 1–5 ppm depending on measurement range) |
| Response Time (NOx) | ≤ 1,000 ms (approx. 1 second, 90% step change) |
| Refresh Rate | 50 ms (20 Hz) |
| Light-Off Time | ≤ 60 seconds (to full measurement accuracy) |
| Heater Element Temperature | Approx. 750°C–800°C at sensing tip |
| Operating Voltage | 16V–36V DC (12V/24V compatible systems) |
| Power Consumption (Heating phase) | ≤ 75 W (peak during warm-up) |
| Power Consumption (Measurement) | ≤ 7 W typical (≤ 0.5A at 14V / ≤ 0.3A at 24V) |
| Probe Operating Temperature | 100°C to +800°C (continuous exhaust gas temperature) |
| Sensor Control Unit Temperature | -40°C to +140°C (ambient, with proper heat shielding) |
| Thread Size | M20 × 1.5 mm or M18 × 1.5 mm (exhaust bung dependent) |
| Communication Protocol | CAN bus (SAE J1939, 250K baud rate) |
| Ingress Protection (SCU) | IP67 (mated connector) / IP69K (high-pressure washdown) |
| Connector Type | 5-pin / 6-pin (compatible with Continental/Bosch interfaces) |
| Wiring Harness Length | Approx. 500–800 mm (probe to SCU, application-specific) |
| Design Life | 15,000 hours (typical under normal operating conditions) |
| Compatible ADT Models | XCMG XDA30, XDA40, XDA45, XDA45U, XDA60, XDA80, TA30 series |
| Compatible Engines | Mercedes-Benz OM460LA / OM502 / OM471, Yuchai YC6K, Weichai WP13, Cummins QSL |
| Quality Certifications | IATF 16949:2023, ISO 9001:2025, ISO 14001 |
| Standards Compliance | ISO 16750 (vehicle electrical/electronic), Euro Stage V, EPA Tier 4 Final |
Installation & Maintenance Guide for NOx Sensor 800172913
Before installing the new NOx Sensor 800172913, allow the exhaust system to cool completely (exhaust gas temperature below 50°C) to prevent burns and thermal shock damage to the new sensor. Wear appropriate personal protective equipment including heat-resistant gloves and safety glasses when working near exhaust components.
Disconnect the battery negative terminal or remove the corresponding fuse for the SCR system to prevent electrical short circuits during sensor replacement. Locate the existing NOx sensor on the exhaust pipe downstream of the SCR catalyst or upstream of the catalyst depending on which position is being replaced.
Disconnect the wiring harness from the sensor control unit (SCU) by pressing the locking tab and pulling the connector straight out. Inspect the connector pins for corrosion, bent terminals, or moisture ingress before connecting the new sensor to ensure proper electrical contact and signal integrity.
Remove the old sensor using a deep socket (typically 22 mm or 27 mm depending on the hex size). Apply penetrating oil to the threads if rust or carbon deposits have accumulated around the probe base to ease removal without damaging the exhaust pipe threads or surrounding components.
Clean the exhaust bung threads thoroughly using a tap (M20 × 1.5 or M18 × 1.5 depending on configuration) to remove any carbon buildup, old anti-seize residue, or thread damage from the previous sensor. Apply a thin layer of high-temperature anti-seize compound to the new sensor probe threads (avoiding the sensing tip itself).
Hand-thread the new sensor into the exhaust bung until finger-tight, then torque to 45–50 Nm (33–37 lb-ft) using a calibrated torque wrench. Do not exceed 55 Nm as over-tightening can damage the ceramic sensing element or strip the threads in the exhaust bung, requiring costly repair.
Secure the sensor control unit (SCU) to the chassis using the original mounting bracket and bolts. Ensure the SCU is positioned away from direct exhaust heat sources, moving engine parts, and areas prone to water pooling during vehicle washing. The SCU must be mounted vertically or at a steep angle to prevent water accumulation on the connector face.
Reconnect the wiring harness to the SCU until an audible click confirms full seating. Route the harness away from sharp edges, exhaust components (including DPF, DOC, and SCR catalyst housing), and moving suspension elements. Use zip ties or original retaining clips to secure the harness every 150–200 mm along the chassis frame.
After installation, reconnect the battery. Start the engine and allow it to idle. Monitor the dashboard for any fault codes. The sensor will enter a heating cycle of up to 60 seconds before delivering accurate NOx readings to the ECU. Use a diagnostic scanner to monitor sensor warm-up status.
Perform a road test under normal operating conditions. Use a diagnostic scanner to verify that NOx sensor readings (post-SCR) are within expected ranges based on engine load and RPM. Expected post-SCR NOx concentration should be below 200 ppm for a properly functioning SCR system with fresh AdBlue and a healthy catalyst.
Inspect the sensor every 1,000 operating hours for wiring harness chafing, connector corrosion, or physical damage to the probe or SCU housing. Replace the sensor if diagnostic trouble codes related to NOx sensor performance recur after reset, if the SCU housing shows cracks, or if wiring insulation is visibly damaged.
Common NOx Sensor Failure Symptoms & Diagnostic Trouble Codes
The most visible symptom of a failing NOx Sensor 800172913 is the illumination of the Malfunction Indicator Lamp (MIL) on the dashboard, accompanied by an engine derate condition that reduces power output by 25–50% to enforce emission compliance and prevent further catalyst damage from uncontrolled NOx emissions.
When the sensor becomes contaminated with soot, sulfur deposits, or oil ash residue, the ECU may log diagnostic trouble codes such as P2200 (NOx sensor circuit malfunction), P2201 (NOx sensor performance/range problem), P2202 (NOx sensor circuit low input), or P229F (NOx sensor circuit range/performance – bank 1).
Operators may notice a sudden increase in AdBlue consumption (up to 15–25%) as the ECU enters open-loop control mode without accurate NOx feedback, resulting in over-injection of urea and formation of ammonia deposits (white crystallized residue) on the SCR catalyst and exhaust tailpipe.
Sensor aging over time (typically beyond 8,000–10,000 hours) can cause signal drift, where the sensor consistently reads lower NOx concentrations than actual exhaust content. This causes the ECU to under-dose AdBlue, leading to elevated tailpipe NOx emissions and eventual regulatory non-compliance during emissions testing.
A completely failed sensor will cause the ECU to log a circuit fault code and enter a limited operating strategy. The vehicle may be restricted to low engine power (limp-home mode) until the sensor is replaced and the SCR system completes a forced regeneration or relearn procedure using diagnostic software.
Why Genuine XCMG NOx Sensor 800172913 Outperforms Aftermarket Alternatives
Aftermarket NOx sensors often use inferior ceramic sensing elements manufactured to wider tolerances, resulting in measurement errors of ±15–20% compared to genuine OE specifications. This leads to chronic under-dosing or over-dosing of AdBlue, reducing SCR efficiency and increasing operating costs while potentially causing engine derate events.
Genuine XCMG 800172913 is backed by a full factory warranty and undergoes 100% final testing in a calibrated exhaust gas simulator across the entire 0–3,000 ppm measuring range, with response times and accuracy verified against XCMG master curves before shipment from the factory to ensure consistent quality and performance.
The OEM sensor features laser-etched part numbers and production batch codes for full traceability, allowing fleet maintenance teams to verify authenticity through official XCMG channels and track installation dates across multiple vehicles in the fleet for inventory management and warranty tracking purposes.
Aftermarket sensors typically omit the protective coating on the ceramic element or use lower-grade coating materials, reducing resistance to sulfur poisoning and thermal shock. This leads to premature failure within 2,000–3,000 hours, compared to the genuine sensor’s design life of 15,000 hours, resulting in higher total cost of ownership.
The SCU firmware on aftermarket sensors is often not calibrated to XCMG ECU communication protocols, causing intermittent CAN bus errors, slow warm-up times exceeding the 60-second specification, and false diagnostic trouble codes that require repeated clearing without actually resolving the underlying issue.
By choosing genuine 800172913 you avoid costly diagnostic time and repeat repairs caused by sensor incompatibility. Each unit is factory-calibrated to XCMG ECU tables for immediate plug-and-play operation without additional programming, relearn procedures, or proprietary diagnostic tool requirements for installation.
Advanced Manufacturing & Quality Control Processes
Each ceramic sensing element used in the 800172913 sensor undergoes a 168-hour burn-in aging process at 850°C to stabilize the YSZ electrolyte properties and eliminate any initial drift, ensuring stable, drift-free operation across the entire 15,000-hour design life of the sensor in the harsh exhaust environment.
The probe assembly is manufactured in ISO Class 7 cleanroom environments to prevent microscopic contamination of the ceramic element during assembly. Each probe is helium leak-tested at 10 bar to verify hermetic sealing of the reference air channel, which is critical for accurate NOx measurement and signal stability.
Sensor control units are 100% function-tested in environmental chambers across the -40°C to +140°C temperature range, with CAN bus communication verified at both voltage extremes (9V to 32V) to ensure reliable operation in all mining and construction conditions from arctic to desert environments.
The manufacturing facility holds IATF 16949:2023 certification (automotive quality management standard) and ISO 14001 for environmental management, reflecting XCMG’s commitment to producing emission system components with zero-defect quality targets and continuous improvement processes.
Cost Avoidance & Operational Efficiency Benefits
A fleet study of 28 XCMG XDA-series articulated dump trucks over 24 months of underground mining operations showed that using genuine OEM NOx sensor 800172913 reduced SCR-related fault codes by 82% compared to fleets using aftermarket sensors of unknown origin that lacked proper calibration for XCMG engine management systems.
Each false NOx sensor fault caused by aftermarket sensor compatibility issues previously resulted in an average of 2 hours of diagnostic time and repair downtime, costing approximately $520 per event in lost production and technician wages across the 28-truck fleet operating on continuous mining schedules.
Accurate NOx measurement enabled by the genuine 800172913 sensor prevented five major SCR system contamination events that would have required SCR catalyst replacement or dosing module rebuild, with each repair estimated at $3,200 to $7,500 depending on the severity of deposit formation and catalyst degradation.
The total avoided cost across the 28-truck fleet exceeded $62,000 over the 24-month study period, demonstrating that genuine OEM NOx sensors provide measurable ROI through reduced diagnostic expenses, lower AdBlue consumption, and increased machine availability across the mining fleet.
Fleets that standardized on genuine XCMG NOx sensors also reported a 15% reduction in AdBlue consumption due to improved closed-loop control accuracy, translating to annual savings of approximately $800–$1,200 per truck in reagent costs alone, further improving the business case for genuine OEM parts.
Compatibility with XCMG Articulated Dump Truck Models
The NOx Sensor 800172913 is designed for direct fitment on XCMG articulated dump trucks spanning the XDA30 through XDA80 model range, including the widely deployed XDA40 (40-ton payload), XDA45 (39-ton payload), XDA45U (41-ton payload), XDA60 (55-ton payload), and TA30 models in mining fleets worldwide.
On the XDA45U equipped with the Mercedes-Benz OM460LA engine meeting Euro Stage V emission standards, this sensor serves as the post-SCR NOx sensor in the Bosch SCR system, communicating with the engine control unit via the vehicle’s CAN bus network and enabling compliance with the most stringent international emissions standards.
The XDA45U features technologies such as automatic traction control and hill-start assist, and the SCR system with AdBlue injection enables compliance with Stage V / Tier 4 Final emissions standards while achieving life-cycle costs more than 20% lower than competing models from other manufacturers in the same payload class.
On XDA40 models used extensively in aggregate transport operations and quarrying applications, the NOx sensor interfaces with the Yuchai YC6K engine control system, providing the real-time NOx data required for OBD compliance and preventing engine derate events during critical production cycles that would impact daily tonnage targets.
For the TA30 model used in light mining and construction applications, the 800172913 sensor ensures that the Cummins QSL engine remains compliant with EPA Tier 4 Final regulations while maintaining uptime rates above 92% in demanding operating environments across all four seasons in varying climatic conditions.
The sensor’s CAN bus communication protocol is fully compatible with XCMG’s telematics systems (XCMG-LRC), allowing remote monitoring of NOx sensor status, fault codes, and SCR system performance through fleet management portals without requiring physical access to each vehicle.
Genuine XCMG OEM 800172913 NOx Sensor — Precision-engineered using advanced YSZ ceramic amperometric technology, tested for durability in extreme mining environments, and calibrated to ensure compliance with Euro Stage V and EPA Tier 4 Final emission standards while keeping your articulated dump truck fleet operating at peak efficiency with reduced AdBlue consumption and maximum uptime.
