The part is the heart of modern diesel fuel injection, delivering precisely metered high‑pressure fuel to each cylinder. A reliable common rail system ensures optimal combustion, power, and fuel efficiency. This genuine HOWO part kit includes injectors, pressure plates, washers, bolts, thrust blocks, oil inlet piping, gland nuts, the high‑pressure rail, high‑pressure pipes, a high‑pressure pump, lubricating oil pipe, ECU, brackets, gears, shafts, sealing washers, and all fasteners. When you choose authentic Howo Parts, you receive a complete part engineered for the MC13 engine platform. For a full engine rebuild, also see our crankshaft kit and connecting rod kit.
The fuel injector is a precision solenoid‑controlled nozzle that injects fuel into the combustion chamber. Six injectors are supplied, each rated for 1800 bar operating pressure. The injector features a seven‑hole nozzle for optimal spray pattern and a fast‑switching solenoid for multiple injection events per cycle. This part component is critical for atomization and combustion efficiency.
The fuel injector pressure plate is a hardened steel plate that holds the injector firmly in the cylinder head. Six plates are supplied, made from spring steel with a precision‑ground surface. It ensures that the injector does not lift under high cylinder pressure, maintaining a leak‑free seal in the part.
The spherical washer is a convex washer that allows angular alignment of the injector clamping bolt. Six washers are supplied, made from hardened steel with a phosphate coating. It compensates for minor misalignments in the part, ensuring even clamping force.
The hexagon bolt with flange Q186 – M8X50 – 10.9 – MAN183 – B1 is a high‑strength fastener used to secure the injector pressure plate. Six bolts are supplied, grade 10.9, M8x1.25, 50mm length, torqued to 25 Nm. These part bolts provide vibration‑proof clamping.
The thrust block is a small steel block that supports the injector from below, preventing movement. Six blocks are supplied, made from case‑hardened steel. It is an often‑overlooked but vital part of the part.
The oil inlet piping of fuel injector is a short steel tube that delivers high‑pressure fuel from the rail to each injector. Six pipes are supplied, each made from thick‑wall steel with a precision‑machined sealing cone. They are rated for 1800 bar and are a critical link in the part.
The gland nut is a hollow threaded nut that secures the oil inlet pipe to the injector and the rail. Six nuts are supplied, made from zinc‑plated steel with a hex drive. They are torqued to 30 Nm and must be replaced if damaged in the part.
The rail, with pressure-limiting valve and integrated throttle valve (1600bar) is the main accumulator that stores high‑pressure fuel. One rail is supplied, made from forged steel with a 1600 bar maximum pressure rating. It includes a pressure‑limiting valve for overpressure protection and a throttle valve to dampen pulsations. This part component distributes fuel to all six injectors evenly.
The high pressure oil pipe assembly cylinder 1 to 6 (1800bar) is a set of six individual high‑pressure pipes that connect the pump to the rail. One assembly (containing six pipes) is supplied, rated for 1800 bar. These part pipes are made from stainless steel with a protective outer braid.
The high pressure oil pipe component pump rail is a single high‑pressure pipe that connects the pump to the rail. One pipe is supplied, rated for 1800 bar, made from the same stainless steel. It feeds the rail from the pump in the part.
The hexagon bolt with flange Q186 – M8X12 – 10.9 – MAN183 – B1 is a short M8 bolt used to secure the rail bracket. One bolt is supplied, torqued to 25 Nm, part of the part mounting hardware.
The high-pressure oil pump CB28 – 18 is a radial piston pump that generates fuel pressure up to 1800 bar. One pump is supplied, displacement 28 cm³/rev, with a built‑in pressure control valve. This part pump is driven by the engine gear train and provides the high pressure needed for injection.
The hexagon bolt with flange Q186 – M10X35 – 10.9 – MAN183 – B1 is a grade 10.9 M10 bolt, 35mm long, used to secure the high‑pressure pump to the engine block. Four bolts are supplied, torqued to 45 Nm, essential for the part mounting.
The oil pump lubricating oil pipe (MC11 CB28) is a steel tube that supplies engine oil to lubricate the high‑pressure pump. One pipe is supplied, with banjo fittings at both ends. It ensures that the part pump bearings are properly lubricated.
The ferrule-type end straight-through joint (M12X1.75 – M14X1.5) is an adapter fitting that connects different thread sizes in the oil line. One joint is supplied, made from nickel‑plated brass, used in the part lubricating circuit.
The composite sealing washer BS – 12, 7 X 18, 0 – ST / FPM1 – 80 is a bonded seal used under the banjo bolt of the lubricating oil pipe. One washer is supplied, with a steel outer ring and FPM rubber sealing element, preventing oil leaks in the part.
The transmission shaft sleeve is a steel sleeve that couples the high‑pressure pump drive gear to the pump shaft. One sleeve is supplied, with internal splines, part of the part drive train.
The elastic snap ring for hole Q430 – 21X1 – MAN183 – B1 is a circlip that secures the transmission shaft sleeve on the pump shaft. One snap ring is supplied, made from spring steel, retaining the drive components in the part.
The high-pressure oil pump PTO assembly (MC11 / CB28) is a power take‑off unit that drives the high‑pressure pump from the engine gear train. One assembly is supplied, including the drive gear and housing. This part component ensures the pump rotates at the correct speed.
The hexagon bolt with flange Q186 – M12X90 – 10.9 – MAN183 – B1 is a long M12 bolt used to attach the PTO assembly to the engine block. Four bolts are supplied, torqued to 80 Nm, critical for the common rail system drive.
The front-end intermediate gear is a steel gear that transfers rotation from the crankshaft to the high‑pressure pump drive. One gear is supplied, made from hardened steel with 48 teeth, part of the common rail system gear train.
The front-end intermediate gear shaft is a hardened steel shaft that supports the intermediate gear. One shaft is supplied, pressed into the engine block, providing a pivot point for the common rail system drive gear.
The screw is a small fastener used to secure the intermediate gear shaft retaining plate. Three screws are supplied, M8x16, grade 8.8, torqued to 20 Nm, part of the common rail system hardware.
The ECU bracket assembly is a stamped steel bracket that mounts the Engine Control Unit. One assembly is supplied, powder coated black, providing a vibration‑isolated mounting for the common rail system electronics.
The ECU(868) is the electronic control unit that manages the common rail system. One ECU is supplied, with 24V input, controlling injection timing, quantity, and rail pressure. It communicates via CAN bus and stores fault codes.
The hexagon bolt with flange Q186 – M6X30 – 10.9 – MAN183 – B1 is an M6 bolt, 30mm long, used to secure the ECU bracket. Four bolts are supplied, torqued to 10 Nm, part of the common rail system mounting.
The hexagon bolt with flange Q186 – M8X35 – 10.9 – MAN183 – B1 is an M8 bolt, 35mm long, used for the ECU bracket or other mounts. Three bolts are supplied, torqued to 25 Nm, supporting the common rail system electronics.
The composite sealing washer BS – 38.7X46 – ST / FPM1 – 80 is a large bonded seal used on the high‑pressure pump mounting or similar. One washer is supplied, with a 38.7mm inner diameter, FPM rubber, sealing the common rail system against oil leaks.
The SCREW PLUG M38X1.5-ST-AC3 is a large threaded plug used to close an oil gallery port on the pump or engine block. One plug is supplied, made from zinc‑plated steel with a hexagon socket drive, torqued to 50 Nm, sealing the common rail system lubrication circuit.
Common rail system – genuine HOWO complete fuel injection kit
| Material Encoding | Name |
|---|---|
| 200V10100-6126 | Fuel injector |
| 200V10104-0065 | Fuel injector pressure plate |
| MQ6-15140-2102 | Spherical washer |
| MQ6-03216-8310 | Hexagon bolt with flange Q186 – M8X50 – 10.9 – MAN183 – B1 |
| 200V90720-0214 | Thrust block |
| 200-10301-6161 | Oil inlet piping of fuel injector |
| 200-10303-0999 | Gland nut |
| 202V10311-6091 | Rail, with pressure-limiting valve and integrated throttle valve (1600bar) |
| 202V10301-6201 | High pressure oil pipe assembly cylinder 1 to 6 (1800bar) |
| 202V10301-6208 | High pressure oil pipe component pump rail |
| MQ6-03216-8302 | Hexagon bolt with flange Q186 – M8X12 – 10.9 – MAN183 – B1 |
| 202V11103-7731 | High-pressure oil pump CB28 – 18 |
| MQ6-03216-8407 | Hexagon bolt with flange Q186 – M10X35 – 10.9 – MAN183 – B1 |
| 202V11120-0332 | Oil pump lubricating oil pipe (MC11 CB28) |
| 092V71060-2103 | Ferrule-type end straight-through joint (M12X1.75 – M14X1.5) |
| MQ6-56631-0105 | Composite sealing washer BS – 12, 7 X 18, 0 – ST / FPM1 – 80 |
| 200V11310-0014 | Transmission shaft sleeve |
| MQ6-29029-0199 | Elastic snap ring for hole Q430 – 21X1 – MAN183 – B1 |
| 202-38500-6176 | High-pressure oil pump PTO assembly (MC11 / CB28) |
| MQ6-03216-8516 | Hexagon bolt with flange Q186 – M12X90 – 10.9 – MAN183 – B1 |
| 200-11306-5007 | Front-end intermediate gear |
| 200V11302-0053 | Front-end intermediate gear shaft |
| MQ6-02191-0614 | Screw |
| 202V11640-6014 | ECU bracket assembly |
| 202V25803-7931 | ECU(868) |
| MQ6-03216-8206 | Hexagon bolt with flange Q186 – M6X30 – 10.9 – MAN183 – B1 |
| MQ6-03216-8307 | Hexagon bolt with flange Q186 – M8X35 – 10.9 – MAN183 – B1 |
| MQ6-56631-0130 | Composite sealing washer BS – 38.7X46 – ST / FPM1 – 80 |
| MQ6-08042-0616 | SCREW PLUG M38X1.5-ST-AC3 |
This common rail system includes every component from injectors to the ECU, high‑pressure pump, rail, pipes, and all fasteners. No need to source individual parts; everything is matched for the MC13 engine. One kit, one installation.
All high‑pressure components in this common rail system are rated for 1800 bar, providing excellent atomization and combustion efficiency. This results in lower fuel consumption and reduced emissions.
All bolts in this common rail system are grade 10.9 with MAN183 quality mark. They provide secure, vibration‑proof clamping for injectors, pump, rail, and ECU, ensuring long‑term reliability.
The common rail system includes the original ECU with pre‑loaded calibration for the MC13 engine. The ECU bracket and mounting bolts are also supplied, simplifying the electronic side of the installation.
The common rail system uses a high‑pressure pump to pressurize fuel to 1800 bar and deliver it to a common rail accumulator. The rail distributes fuel to each injector via short high‑pressure pipes. The ECU controls each injector solenoid, allowing multiple injection events per cycle (pilot, main, post). The pressure‑limiting valve protects the system from overpressure. The throttle valve dampens pressure pulsations. The common rail system eliminates the need for individual pump‑lines, providing precise injection timing and quantity for optimal combustion. This results in smoother engine operation, lower noise, and better fuel economy.
Begin by removing the old common rail system components. Clean all mounting surfaces. Install the high‑pressure pump and its PTO drive assembly using the M10, M12 bolts (torque to 45 Nm and 80 Nm). Mount the rail using the M8 bolts (25 Nm). Install the injectors with new pressure plates, spherical washers, and M8x50 bolts (25 Nm).
Connect the injector oil inlet pipes with new gland nuts (30 Nm). Install the high‑pressure pipes between pump and rail, and between rail and injectors. Connect the lubricating oil pipe with the composite sealing washer. Mount the ECU bracket and ECU using M6 and M8 bolts (10 Nm and 25 Nm). Connect the electrical harness. Prime the system using the electric priming pump. Start the engine and check for fuel leaks. The common rail system is now ready.
This common rail system is specifically designed for the MC13 engine used in the HOWO MAX 4X2 tractor. It fits all production years from 2018 onward. The injectors have the correct spray angle and flow rate for the 13‑liter engine. The rail pressure sensor and ECU calibration are matched. This common rail system is not compatible with the MC11 or MC07 engines. Always verify your engine serial number before ordering.
Inspect the common rail system for fuel leaks every 20,000 km. Replace the fuel filter regularly (not included). The high‑pressure pump requires no routine maintenance. The injectors should be flow‑tested every 300,000 km. The rail pressure sensor and pressure‑limiting valve are sealed and non‑serviceable; replace if faulty. Always use genuine HOWO replacement parts for any repairs to the common rail system. Contaminated fuel is the primary cause of common rail system failure; always use clean, high‑quality diesel.
If the engine has poor performance or black smoke, check the rail pressure sensor and the fuel pressure regulator. If the engine does not start, check the ECU power supply and the crankshaft position sensor. If there is a fuel leak, inspect the high‑pressure pipe connections and gland nuts. If the injector is stuck open, replace it. Always use genuine HOWO components for the common rail system, as aftermarket parts may not withstand the 1800 bar pressure and could cause catastrophic engine damage.
Aftermarket common rail system components are often made from lower quality steel that may crack under high pressure. The injector nozzles may have incorrect spray patterns, leading to poor combustion. The ECU in copy kits may not have the correct calibration for the MC13 engine. Genuine HOWO common rail system components are manufactured to the exact specifications of the original equipment, using certified materials and rigorous quality control. The small additional cost is far outweighed by the reliability and safety of a genuine common rail system.
The common rail system components are shipped in a reinforced cardboard box with foam inserts. The high‑pressure pipes are coiled without kinking. The fasteners are in sealed poly bags. The packaging is recyclable. The manufacturing facility is ISO 14001 certified. No hazardous substances are used in production.
This common rail system kit includes all 29 line items listed in the parameters table. Individual components can be ordered separately using their material encodings. Authorized HOWO dealers in Nigeria stock these genuine parts. For fleet orders of three or more complete common rail system kits, volume discounts are available. Always provide your engine serial number to confirm compatibility.
Fleet managers who have installed this genuine HOWO common rail system report smoother engine operation, reduced fuel consumption, and fewer emissions. The complete kit saved time and ensured correct fitment. The ECU calibration was perfect. Many operators have standardized on this common rail system for all MC13 engine repairs, citing the all‑in‑one convenience and the reliability of genuine components.
The part is shipped in a box measuring 80cm x 60cm x 40cm, weight 25 kg. Store the kit in a dry indoor area. Do not remove the protective caps from the high‑pressure ports until installation. The shelf life is three years when stored properly. Protect the injectors and pump from impact.
We are a heavy-duty truck parts store. Please leave your contact information and inquiries. We will respond within 12 hours.
