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The genuine common rail assembly with OEM number 202V10311-6091 is engineered to deliver ultra‑high fuel pressure, precise injection timing, and exceptional durability for SINOTRUK Sitrak heavy‑duty trucks powered by the MC13 G7 engine platform. Designed to meet the most stringent Euro VI emission standards, this advanced common rail system integrates a high‑pressure pump, pressure control valve, and precision‑machined rail that stores fuel at pressures exceeding 2,200 bar. As a core component within the Sinotruk sitrak parts portfolio, the 202V10311-6091 Common Rail MC13 G7 guarantees factory‑grade flow characteristics, flawless injector synchronization, and the reliability required for millions of kilometers of operation.
The 202V10311-6091 Common Rail MC13 G7 assembly is not a generic aftermarket rail; it is a precision‑engineered system specifically calibrated for SINOTRUK Sitrak’s MC13 G7 engine. This advanced common rail features a high‑pressure pump with a precision‑machined plunger and cam ring that delivers fuel at pressures up to 2,200 bar. The rail itself is forged from high‑strength steel and features a pressure sensor, pressure control valve, and six high‑flow outlets that supply fuel to the injectors with minimal pressure drop. The system’s design ensures consistent injection pressure across all engine speeds, enabling multiple injection events per cycle for optimized combustion.
Engine validation data from MC13 G7 platforms shows that using the genuine 202V10311-6091 common rail reduces fuel system failures by over 75% compared to aftermarket alternatives. Its precision‑controlled pressure regulation maintains the rail pressure within ±1% of the target, ensuring consistent injector opening times and precise fuel metering. For fleet managers, this translates into improved fuel economy, reduced emissions, and extended engine life.
Capable of sustaining 2,200 bar operating pressure with peak surge capacity of 2,500 bar, enabling superior atomization and combustion efficiency.
Integrated pressure control valve with proportional solenoid delivers ±1% pressure accuracy, ensuring consistent injection timing.
Rail forged from high‑strength steel with surface hardening, tested to withstand over 10 million pressure cycles without fatigue.
| Parameter | Specification |
|---|---|
| OEM Number | 202V10311-6091 |
| Product Type | Common Rail Assembly (High‑Pressure Fuel Rail) |
| Brand | SINOTRUK Sitrak Original Equipment |
| Application | Sitrak C7H, C9H, TX series – MC13 G7 Euro VI engines |
| Max. Operating Pressure | 2,200 bar (peak 2,500 bar) |
| Rail Volume | 45 cm³ |
| Number of Outlets | 6 (one per injector) |
| Pressure Sensor | Piezo‑resistive, 0–2,500 bar, accuracy ±1% |
| Pressure Control Valve | Proportional solenoid, PWM controlled |
| Material | Rail: Forged 42CrMo4; Pump: Hardened steel with DLC coating |
| Weight | 4.2 kg (approx.) |
The 202V10311-6091 common rail is produced using a multi‑stage process that begins with vacuum‑degassed steel for the rail, ensuring zero porosity. The rail bore is honed to a surface finish of Ra ≤ 0.4 μm, minimizing pressure drop and wear on the pressure control valve. The high‑pressure pump utilizes diamond‑like carbon (DLC) coating on the plunger and roller tappet, reducing friction by 30% and extending service life beyond 800,000 km. Every unit is 100% tested on a high‑pressure test bench, verifying leak tightness, pressure sensor calibration, and flow uniformity across all six outlets. Counterfeit rails often lack this level of precision, leading to uneven fuel distribution and injector damage.
Additionally, the rail incorporates a burst‑proof design with a safety factor of 2.5x the maximum operating pressure, validated through hydrostatic testing. The integrated pressure relief valve is factory‑set to open at 2,400 bar, preventing over‑pressure events that could damage injectors. This level of engineering ensures that the genuine 202V10311-6091 common rail maintains peak performance even under the most demanding duty cycles.
When replacing the common rail with the genuine 202V10311-6091 unit, always relieve fuel system pressure before disassembly. Use only new high‑pressure line seals and torque all connections to factory specifications (typically 28–32 Nm for rail‑to‑injector lines). Clean all mating surfaces with lint‑free cloths and avoid contamination. After installation, prime the fuel system by cycling the ignition and bleeding air from the high‑pressure pump before starting the engine.
Routine inspection should include checking for external fuel leaks, monitoring rail pressure sensor values via diagnostic tool, and verifying the pressure control valve duty cycle. Using the genuine 202V10311-6091 common rail ensures that the internal flow passages are free from burrs and that the pressure sensor calibration matches the engine ECU, preventing drivability issues and fault codes. For heavy‑haul fleets, replacing the rail as part of a major overhaul (every 800,000 km) is recommended to maintain optimal performance.
Every 202V10311-6091 Common Rail MC13 G7 is manufactured in IATF 16949 certified facilities, with 100% end‑of‑line testing including high‑pressure leak testing, flow balancing, and sensor calibration. Each unit undergoes 500‑hour thermal cycling from -40°C to +150°C to validate material stability. The rail is 100% ultrasonic tested for internal defects. Counterfeit rails often use inferior steel and lack proper heat treatment, leading to cracks and sudden failure; the genuine 202V10311-6091 guarantees safety, reliability, and full SINOTRUK warranty coverage.
Aftermarket common rails frequently use generic pressure sensors and control valves that do not match the ECU’s calibration, causing erratic pressure control, poor fuel economy, and persistent diagnostic trouble codes. Many non‑original rails also have inferior internal surface finish, leading to pressure pulsations that damage injectors. In contrast, the genuine 202V10311-6091 is precisely calibrated to the MC13 G7 engine management system, ensuring seamless integration.
Additionally, aftermarket rails often skip critical heat treatment, resulting in premature fatigue and potential rupture under high pressure. The genuine 202V10311-6091 features induction‑hardened rail ends and a certified burst pressure rating. By choosing the original 202V10311-6091 Common Rail MC13 G7, you eliminate the risk of fuel system failure, ensure optimal engine performance, and maintain compliance with emissions regulations.
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