The part is a critical component that significantly enhances engine power and efficiency on the HOWO MAX 4X2 MC13 diesel engine. This part kit includes the main turbocharger assembly along with every sealing gasket, oil pipe, mounting fastener, and double end stud needed for a complete, leak free installation. When you choose authentic Howo Parts, This part guarantees OE fitment and reliable performance. Below are detailed descriptions of every component included with This part assembly.
This sealing gasket is placed between the turbocharger oil inlet pipe and the engine block, preventing pressurised oil leaks. The part gasket is made from high temperature fiber material with a steel core, capable of withstanding oil temperatures up to 150°C. It ensures that oil reaches the turbocharger bearings without loss of pressure.
Four M8x20 flange bolts with class 10.9 and 20mm length secure The part oil pipes and brackets to the engine block. The integral flange distributes load evenly, and the MAN183 thread locking patch prevents loosening under vibration. Torque these Exhaust turbocharger bolts to 25 Nm.
This is a 430mm diameter diaphragm pull clutch assembly manufactured by Nanjing Faurecia, designed for the HOWO MAX 4X2 transmission. While not directly part of The part, it is included in the same kit for fleet convenience. The clutch features a pull type diaphragm spring design with a high friction organic lining.
This bonded seal has an inner diameter of 16.7mm and outer diameter of 24.0mm, consisting of a steel outer ring with an FPM1 rubber seal. It is used under The part oil return pipe banjo bolt or similar connections. Replace this washer if the joint is disturbed.
The oil return pipe carries used oil from The part back to the engine sump. This steel tube is pre bent to match the MC13 engine layout and includes a banjo fitting at the turbo end and a flanged connection at the block. The part return pipe must slope continuously downward to allow gravity drainage.
This flat gasket seals the interface between the oil return pipe flange and the engine block. The part gasket is made from aramid fiber with a nitrile binder, resistant to hot oil and aging. Replace this gasket whenever The part return pipe is removed.
Four flange bolts secure The part to the exhaust manifold or the volute outlet. These bolts are made from heat resistant alloy steel with a zinc nickel coating, capable of withstanding exhaust gas temperatures up to 750°C. Torque these Exhaust turbocharger bolts to 45 Nm.
This gasket seals the interface between The part and the exhaust manifold. It is a multi layer steel (MLS) gasket with a raised bead that compresses under bolt load to create a gas tight seal. The part gasket withstands extreme pressure pulses and temperature cycles.
Four double end studs with M10 thread and 35mm overall length are used to mount The part to the exhaust manifold. One end is screwed into the manifold, and nuts (not included) are used to clamp the turbo flange. These studs provide precise alignment and allow for easier installation of The part.
This gasket seals the volute (turbine housing) outlet flange to the exhaust pipe or catalytic converter. The part volute gasket is made from high temperature graphite filled steel, capable of sealing exhaust gas at up to 900°C. Replace this gasket when The part is removed.
Six shorter double end studs with M10 thread and 25mm length are used to secure the volute outlet flange. These studs are also made from heat resistant steel and allow fast, accurate assembly of The part outlet connection.
The main Exhaust turbocharger unit is a variable geometry or wastegated turbocharger designed for the MC13 engine. It features a twin scroll turbine housing, a compressor wheel with high flow aerodynamics, and a floating bearing system that provides long service life. This part is calibrated to deliver up to 1.8 bar boost pressure and enables the engine to produce 510 horsepower.
Exhaust turbocharger – genuine HOWO complete turbocharger and hardware kit for MAX 4X2 MC13
This part kit includes every gasket, oil pipe, bolt, stud, and sealing washer needed for a trouble free replacement. No need to chase individual fasteners; This part kit is all inclusive.
All sealing components in This part kit are rated for extreme exhaust gas and oil temperatures, with MLS and FPM materials that resist heat cycling and prevent leaks.
The part bolts and studs are made from heat resistant alloy steel with proper coatings and thread locking. These fasteners maintain clamping force even after repeated thermal cycles.
The main Exhaust turbocharger is calibrated to SINOTRUK’s exact specifications for the MC13 engine, delivering the correct boost curve and airflow for maximum power and fuel efficiency.
The part uses the energy of exhaust gases to drive a turbine wheel, which in turn spins a compressor wheel that pressurises intake air. The compressed air is then cooled by the intercooler and delivered to the engine, allowing more fuel to be burned and producing higher power output. The part on the MC13 engine is a variable geometry unit that adjusts the turbine inlet area to maintain optimal boost across a wide RPM range.
This part also improves engine braking when the exhaust brake is applied. The oil supply and return system ensures that The part bearings are continuously lubricated and cooled.
Before installing The part, ensure the engine is cool and the exhaust system is supported. Remove the old Exhaust turbocharger and clean the manifold faces. Install the new Exhaust turbocharger sealing gasket and position the main unit on the double end studs. Install the oil return pipe with its gasket, and secure with the M8x20 bolts.
Connect the oil inlet pipe with a new sealing gasket. Attach the volute outlet using the studs and the volute gasket. Torque all fasteners to the specified values. Refill the engine oil and prime The part by cranking the engine with the fuel shut off. Start the engine and check for exhaust and oil leaks. The part is now ready for service.
If the engine produces excessive black smoke and lacks power, The part may be failing due to worn bearings or a stuck actuator. Inspect The part shaft for play; if excessive,
replace the unit. Oil leaks from The part joint indicate a failed gasket or loose bolts – retorque and replace gaskets if necessary. A whistling noise that increases with engine speed often points to an air leak on the intake side of The part. If The part does not produce boost, the actuator or the electronic control may be faulty.
The part itself has no fixed replacement interval, but it should be inspected at every oil change for shaft play and for signs of oil leakage. The oil supply and return pipes should be checked for blockages.
The part gaskets should be replaced whenever the unit is removed. The fasteners should be retorqued after the first 500 km of operation following a new Exhaust turbocharger installation. Using genuine HOWO replacement parts ensures The part continues to perform at its peak.
This part kit is specifically designed for the SINOTRUK MC13 engine used in HOWO MAX 4X2 tractors, SITRAK C7H, and HOWO T7H trucks. The part fits all production years from 2018 onward and is compatible with both Euro 5 and Euro 6 emission standards. The included clutch assembly is for the 430mm diaphragm clutch used in these vehicles. The part kit is not compatible with MC11 engines or older WD615 series. Always verify your engine serial number before ordering.
Aftermarket Exhaust turbochargers may have incorrect turbine and compressor wheel profiles, leading to poor boost response or overspeed. Non genuine gaskets may fail under heat, causing exhaust leaks and loss of turbo pressure.
Generic fasteners can loosen or break, leading to catastrophic failure. Genuine HOWO Exhaust turbocharger components are manufactured to SINOTRUK’s exacting standards, using certified materials and precision calibration. The small additional cost of a genuine Exhaust turbocharger is insignificant compared to the cost of a turbo failure that damages the engine.
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