Shandong Shengyue Technology Development Co.,Ltd is one of the most professional urea metering injection pump jc100-1205340a for yuchai yc4d140-50 engine manufacturers and suppliers in China. Please feel free to buy high quality genuine auto parts at competitive price from our factory.
Urea Metering Injection Pump JC100-1205340A FOR YUCHAI YC4D140-50 ENGINE
Core Function
Controlled by the engine ECU, it precisely draws automotive urea solution from the tank, pressurizes it, and injects a metered amount into the exhaust system.
Upon exposure to high-temperature exhaust gases, the urea decomposes into ammonia; within the SCR catalytic converter, this ammonia reduces harmful nitrogen oxides (NOx) into harmless nitrogen and water, thereby ensuring compliance with emission standards.
Common Faults and Maintenance
1. Urea pump clogging due to crystallization: This is the most common issue. If the system fails to perform an automatic purge and suction cycle after the vehicle is shut down for an extended period, or if substandard urea is used, residual urea crystallizes within the pump, clogging internal lines or check valves.
2. Heating and freeze protection issues: In low-temperature environments, if the urea pump's electric heating function fails, the urea solution can freeze and expand, easily damaging internal ceramic valve cores or diaphragms.
3. Failure to build pressure: If the filter screen becomes completely blocked by large debris particles, the pump cannot raise the line pressure to the standard operating level; the ECU will then trigger an error code and force the vehicle into a torque-limited mode.
Technical Specifications Table
| Category | Key Technical Indicators | Official Specification & Data |
|---|---|---|
| Electrical Specs | Rated Operating Voltage | 24 V (Standard for commercial heavy-duty vehicles) |
| Max Power Consumption | Approx. 35 W - 45 W (During injection motor operation) | |
| Pre-heating Power | Approx. 120 W (Automatically activated in low temperatures) | |
| Hydraulic Performance | Rated Operating Pressure | 5.0 bar ～ 9.0 bar (Stable pressure build-up range) |
| Metering Injection Range | 100 mL/h ～ 2500 mL/h (Real-time Pulse Width Modulation by ECU) | |
| Applicable Fluid Medium | 32.5% Standard Diesel Exhaust Fluid (DEF / AdBlue / AUS 32) | |
| Environmental Tolerance | Freezing Adaptability | Built-in anti-freeze heating elements; supports rapid thawing below -11 ºC |
| Ingress Protection Rating | IP6K9K (High-pressure jet wash-proof and dust-tight chassis design) |
DETAILS
| DESCRIPTION | Urea Metering Injection Pump | PART NUMBER | JC100-1205340A |
| WEIGHT | 3 kg | VOLUME | 300 mm × 200 mm × 180 mm |
| TRUCK MOLDE | YUCHAI | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Hot Tags: urea metering injection pump jc100-1205340a for yuchai yc4d140-50 engine, manufacturers, suppliers, factory, parts, genuine, original
