The part delivers precisely metered fuel at pressures up to 2,200 bar for optimal combustion, efficiency, and emissions control in the Sitrak C7H diesel engine.
This comprehensive High-Pressure Common Rail System kit includes all injectors, high-pressure lines, rail, pump, ECU, and every bracket, seal, and fastener needed for a complete installation.
For complete technical specifications and ordering details, please refer to the official Sinotruk Catalog, which provides comprehensive information on all available variants and compatible truck models for The part.
This High-Pressure Common Rail System is designed to meet the highest standards of performance and durability, ensuring your Sitrak C7H delivers maximum power with minimal emissions. Whether you are performing a full rebuild or replacing a single component, this kit provides everything required for a professional installation.
These six piezo-actuated injectors precisely meter fuel into each cylinder. In The part, they operate at pressures up to 2,200 bar, delivering multiple pilot and post injections for smooth combustion and reduced emissions.
This plate secures each injector to the cylinder head, ensuring correct alignment and sealing. In The part, it is made of hardened steel with a precision-ground surface for even clamping force.
These self-aligning washers are used under the clamping bolts to compensate for minor misalignments. In The part, they ensure even load distribution and prevent stress fractures.
These high-strength M8 bolts secure the injector clamping plates. Grade 10.9 with a zinc-nickel coating, they provide reliable clamping force in The part.
These thrust blocks prevent axial movement of the injectors within the bore. In The part, they are made of hardened steel and ensure precise injector positioning.
This fitting connects the high-pressure line to the injector. In the High-Pressure Common Rail System, it features a precision-ground sealing cone and is made of high-strength alloy steel.
This nut secures the fuel inlet fitting to the injector body. In the High-Pressure Common Rail System, it is torqued to a precise specification to ensure leak-free sealing and reliable fuel delivery.
This valve regulates rail pressure and protects the system from overpressure. In the High-Pressure Common Rail System, it opens at a preset pressure to return excess fuel to the tank, maintaining stable injection pressure.
This pre-formed steel line carries fuel from the rail to injector 1. In the High-Pressure Common Rail System, it has an outer diameter of 8mm and wall thickness of 3.5mm, capable of withstanding 2,200 bar pressure.
This line serves cylinder 2. In the High-Pressure Common Rail System, it is identical in construction to the other lines, with precision-formed ends for leak-free connections.
This line feeds cylinder 3. In the High-Pressure Common Rail System, it is routed to match the engine geometry, ensuring equal length for balanced injection timing.
This line supplies cylinder 4. In the High-Pressure Common Rail System, it is manufactured from seamless steel tubing and subjected to rigorous pressure testing.
This line serves cylinder 5. In the High-Pressure Common Rail System, it is fitted with protective sleeves to prevent chafing against engine components.
This line feeds cylinder 6, completing the set. In the High-Pressure Common Rail System, all six lines are identical in construction and are pre-bent for a perfect fit.
This radial piston pump supplies the rail with fuel at up to 2,200 bar. In the High-Pressure Common Rail System, it features a metering unit and a pressure regulator, delivering precise fuel quantity for all operating conditions.
This sleeve connects the pump drive shaft to the engine gear train. In the High-Pressure Common Rail System, it is splined and precision-ground to ensure backlash-free power transmission.
This snap ring secures the drive sleeve to the pump shaft. In the High-Pressure Common Rail System, it is made of spring steel and prevents axial movement.
These M10 bolts secure the pump bracket to the engine block. Grade 10.9 with a zinc-nickel coating, they provide reliable clamping in the High-Pressure Common Rail System.
This PTO adaptor allows the pump to be driven by the engine’s power take-off. In the High-Pressure Common Rail System, it is designed for MC11/MC13 engines and includes a splined shaft and mounting flange.
These heavy-duty M12 bolts secure the PTO assembly. Grade 10.9 with a zinc-nickel coating, they provide exceptional clamping force and vibration resistance in the High-Pressure Common Rail System.
This gear drives the high-pressure pump from the crankshaft. In the High-Pressure Common Rail System, it is hardened and precision-ground for smooth, quiet operation.
This shaft supports the intermediate gear. In the High-Pressure Common Rail System, it is made of case-hardened steel with ground bearing surfaces for long life.
These socket head screws secure the intermediate gear bracket. Grade 10.9 with a zinc-nickel coating, they provide reliable fastening in the High-Pressure Common Rail System.
The Electronic Control Unit manages all injection parameters. In the High-Pressure Common Rail System, it processes sensor data to control rail pressure, injection timing, and quantity, optimizing performance and emissions.
This bracket securely mounts the ECU to the engine or chassis. In the High-Pressure Common Rail System, it is made of galvanized steel with rubber vibration isolators.
These M6 bolts secure the ECU bracket. Grade 10.9 with a zinc-nickel coating, they provide reliable fastening in the High-Pressure Common Rail System.
The recommended fuel for the High-Pressure Common Rail System. High-quality diesel fuel is essential to maintain injector cleanliness and system performance.
This short M8 bolt is used for securing small components. In the High-Pressure Common Rail System, it is grade 10.9 and zinc-nickel coated.
This silicone-based sealant is used on threaded connections to prevent fuel leaks. In the High-Pressure Common Rail System, it provides a reliable seal against high pressure.
This clamp secures wiring and tubing in the High-Pressure Common Rail System. It is made of zinc-plated steel and provides a secure hold for small-diameter lines.
The High-Pressure Common Rail System delivers fuel at pressures up to 2,200 bar, ensuring complete atomization and optimal combustion. This results in improved fuel economy, reduced emissions, and enhanced engine performance.
This High-Pressure Common Rail System includes every injector, high-pressure line, pump, rail, ECU, bracket, and fastener needed for a full installation. The all-in-one solution simplifies replacement and ensures compatibility.
The injectors in the High-Pressure Common Rail System use fast-acting piezo actuators, allowing multiple injection events per cycle. This reduces combustion noise, lowers particulate emissions, and improves throttle response.
Every component of the High-Pressure Common Rail System is manufactured to OEM specifications, guaranteeing a perfect fit and durable performance. The high-quality materials and precision engineering ensure years of trouble-free service.
Our online catalog provides comprehensive access to genuine SINOTRUK parts for all major vehicle lines — including HOWO, Sitrak, Steyr, and Yellow River series trucks. You can browse detailed specifications, original part numbers, and exploded-view diagrams for every assembly. Whether you are performing routine maintenance or planning a major overhaul, the catalog helps you quickly identify the correct components for your vehicle. When you become a SINOTRUK customer, we offer complimentary full‑access catalog services, ensuring you always have the latest product data and interchangeability information at your fingertips to support efficient fleet management and accurate parts ordering.
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