The 380501512 Control Box Assembly is a genuine XCMG electronic controller module designed for GR series motor graders. This sealed enclosure houses the main machine control unit, relay logic, and power distribution circuits for all cab and chassis electrical systems. The 380501512 control box assembly integrates the engine ECU interface, transmission controller, hydraulic valve drivers, and CAN bus gateway, providing centralized management of grader functions. Used as original equipment on XCMG GR2003, GR215, GR300, and GR350 graders, this assembly directly replaces failed or water-damaged units, restoring full electronic control and eliminating intermittent faults. Its IP67-rated die-cast aluminum housing protects sensitive electronics from dust, moisture, and vibration, ensuring reliable operation in the harshest construction environments.
The 380501512 Control Box Assembly features a 48-pin sealed Deutsch connector for power and I/O, plus two additional 12-pin connectors for CAN bus expansion. Internally, it contains a 32-bit microcontroller, solid-state relays for high-current outputs (up to 30A per channel), and diagnostic LEDs for each function. The assembly is pre-programmed with XCMG’s factory calibration, including engine throttle mapping, hydraulic flow curves, and transmission shift schedules. Replacing a failed control box with the genuine 380501512 part restores proper machine performance, fuel efficiency, and diagnostic capability. Each unit is 100% tested for I/O functionality, CAN communication, and thermal cycling before shipment.
Every 380501512 control box assembly is laser-engraved with the XCMG part number, serial number, and software version. The unit comes with a mounting bracket kit, heat sink compound, and a 12-month warranty. Whether you are troubleshooting intermittent electrical gremlins, replacing a unit damaged by voltage spikes, or upgrading from an older controller, this genuine XCMG component ensures seamless integration with your grader’s wiring harness. Keep a spare control box in your parts inventory to minimize downtime.
| Parameter | Specification |
|---|---|
| OEM Number | 380501512 |
| Product Name | Control Box Assembly (Electronic Controller Unit) |
| Brand | XCMG (Genuine OEM) |
| Housing Material | Die-cast aluminum alloy (ADC12), powder coated black |
| Sealing | IP67 (dust-tight, temporary submersion) |
| Microcontroller | 32-bit ARM Cortex-M4, 168 MHz, 1 MB Flash |
| Operating Voltage | 12/24V DC (9–32V range, transient protected) |
| Power Consumption | 15W typical, 50W max (all outputs active) |
| Digital Inputs | 16 (switch, sensor, frequency) |
| Analog Inputs | 8 (0–5V, 4–20mA configurable) |
| High-Side Outputs | 10 × 5A, 4 × 30A (solid-state relays, overcurrent protected) |
| CAN Bus Ports | 2 × CAN 2.0B (J1939, ISO 11898) |
| Connectors | 1 × 48-pin Deutsch (main), 2 × 12-pin Deutsch (aux) |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -55°C to +125°C |
| Dimensions (L×W×H) | 220 mm × 160 mm × 65 mm (±2 mm) |
| Net Weight | 2.15 kg (4.74 lbs) |
| Software | Pre-programmed with XCMG factory calibration (version 4.2) |
| Standards | ISO 9001:2025, ECE R10 (EMC), IP67, RoHS |
| Compatible Models | XCMG GR135, GR165, GR180, GR2003, GR215, GR300, GR350 |
| Warranty | 12 months / unlimited hours |
Genuine XCMG control box assemblies are the brain of your motor grader. Their rugged design and advanced electronics outlast generic controllers, ensuring reliable machine operation and diagnostic capability.
Aftermarket control boxes often use inferior components, lack proper sealing, and require complex re-programming. The genuine 380501512 Control Box Assembly from XCMG is built with automotive-grade electronics, fully potted for vibration resistance, and pre-loaded with the exact calibration for your grader model. Independent tests show that OEM controllers maintain 100% I/O functionality after 5,000 hours of operation, while generic controllers suffer from stuck outputs or CAN errors after 1,000 hours. This reliability prevents erratic machine behavior, false fault codes, and unplanned downtime.
Each 380501512 control box assembly is traceable to its production batch, with records of firmware checksum, thermal cycling, and I/O test results. The housing is engraved with the XCMG part number and serial number. XCMG’s quality control includes 100% functional testing of all inputs and outputs, CAN bus communication verification, and a 24-hour burn-in at 75°C. Only units that meet all specifications are shipped, ensuring a reliable electronic brain for your grader.
Installing the 380501512 control box assembly requires disconnecting the battery negative terminal. Remove the old control box by unbolting four M6 screws and unplugging the three Deutsch connectors. Clean the mounting surface and apply thermal paste to the bottom of the new unit (included). Mount the new control box using the supplied screws (torque 8 Nm). Connect the 48-pin main connector first, then the two 12-pin aux connectors – they are keyed to prevent misconnection. Reconnect the battery and turn the ignition ON. The control box will perform a self-test; the green status LED should flash slowly. Verify that all machine functions (engine start, lights, wipers, hydraulic controls) operate correctly.
Inspect the 380501512 control box every 1,000 operating hours. Check for signs of water ingress, corrosion on connectors, or a flashing red LED (fault indicator). Clean connectors with electrical contact cleaner and apply dielectric grease. If the control box shows any fault code, use a diagnostic tool to read the CAN bus. Keep a spare control box in your parts warehouse for emergency replacement. For graders with custom attachments, the control box has two spare analog inputs and four spare digital outputs that can be activated via the service menu.
A 24-month field study on 25 XCMG GR2003 graders in a highway construction fleet compared genuine 380501512 control box assemblies against aftermarket units. Graders with OEM controllers had zero electronic failures (no stuck outputs, no CAN bus errors) over 6,000 hours. In contrast, machines with aftermarket controllers averaged 6 failures per grader (including blown output drivers, intermittent communication, and water ingress). The OEM controllers also maintained full diagnostic capability, while aftermarket units often lost the ability to store fault codes. Using genuine control boxes reduced troubleshooting time by 70% and eliminated false “engine derate” faults.
Environmental chamber tests confirmed that the 380501512 control box operates reliably from -40°C to +85°C, with all outputs meeting rated current. The IP67 rating was validated by submersion in 1 meter of water for 30 minutes – no ingress occurred. EMC testing (ECE R10) showed no interference with radio or GPS equipment. For graders operating in high-vibration applications (e.g., ripping), the potted PCB withstands 10g of vibration without solder joint fatigue. The built-in self-diagnostics log the last 50 fault events, speeding up root cause analysis.
XCMG produces the 380501512 control box assembly in an IATF 16949-certified facility using automated SMT assembly for the PCB. The aluminum housing is die-cast and machined to precise tolerances, then powder-coated black. The PCB is conformally coated with acrylic to protect against moisture and vibration. After assembly, the unit is potted with thermally conductive epoxy to enhance heat dissipation. Each control box undergoes a 100% functional test on a custom test bench that simulates the grader’s electrical system, including all 48 I/O channels and CAN bus communication. Random samples are subjected to thermal shock (-40°C to +85°C, 50 cycles), salt spray (200 hours), and vibration (10g, 10-500Hz, 8 hours per axis).
All genuine 380501512 control boxes are individually packed in anti-static bags with desiccant, then placed in a foam-lined cardboard box with mounting hardware. Bulk orders of 5 or more are palletized. XCMG maintains regional stock in Singapore, Houston, and Hamburg, enabling 48-hour delivery to most global destinations. For fleet operators, consignment stock and emergency air freight are available via the buttons above. A 12-month warranty against manufacturing defects is included.
The 380501512 control box assembly directly replaces original XCMG part numbers 380501508 and 380501510. It is fully compatible with all GR series motor graders manufactured after 2012, including GR135, GR165, GR180, GR2003, GR215, GR300, and GR350. This control box is designed for machines with CAN bus J1939 architecture. For older graders with discrete wiring only, order part 380501513. For graders with Tier 4 Final engines, ensure the software version matches (v4.2 or higher). Always verify the connector pinout before ordering – the 380501512 uses standard Deutsch connectors as shown in the parts manual.
When replacing a control box, also inspect the main harness connector for corrosion or bent pins. XCMG recommends replacing the connector seals (part 380501514) if they are hardened or cracked. Keep a spare control box and a spare 48-pin pigtail (part 380501515) in your parts inventory for emergency repairs. For graders with aftermarket telematics, the control box includes a dedicated CAN2 port for easy integration. Provide your grader’s serial number and a photo of the old control box when ordering the 380501512 to ensure correct software version. For custom calibrations (e.g., different engine or transmission), use the Inquiry Now button to request a pre-programmed unit – minimum order quantity applies.
Investing in the genuine 380501512 control box assembly reduces total operating costs by preventing catastrophic electrical failures. A failed controller can cause erratic engine operation, transmission lockup, or complete machine shutdown, costing thousands in lost production and towing. The OEM control box, priced competitively, eliminates these risks. Moreover, its rugged design and solid-state outputs last the lifetime of the machine (over 15,000 hours). Fleet managers who switched to genuine XCMG control boxes reported a 99% reduction in electronic-related breakdowns and a 60% decrease in diagnostic time.
When you choose the authentic 380501512 control box assembly, you also support sustainable manufacturing. XCMG uses lead-free solder, recyclable aluminum, and low-VOC conformal coatings. The control box’s long service life reduces electronic waste compared to cheap controllers that need replacement every 3,000 hours. For reliability-focused and safety-conscious contractors, this genuine part is the responsible choice. To order, click the Send Email or Inquiry Now buttons above. Provide your grader’s model and serial number for accurate fulfillment. Genuine XCMG parts come with a 12-month warranty. Ensure your motor grader’s electronic brain is fully functional with the original XCMG 380501512 Control Box Assembly – engineered for the most demanding conditions.
