

The National V Exhaust System is a comprehensive emission control solution designed to meet stringent Euro V standards for the Sitrak C7H. This complete system integrates the SCR catalytic converter, muffler, and all associated piping to ensure clean exhaust emissions and quiet operation.
This high-quality National V Exhaust System kit includes the Metal Hose Assembly, Muffler Bracket Assembly, Muffler Trim Panel, Tapered Sealing Gasket, V-Band Clamp, Exhaust Pipe, Exhaust Pipe with Urea Injector Boss, Half-Round Clamp, Clamp, Hexagon Head Bolts M8, Type 2 Full Metal Hexagon Locknuts, Sealing Gasket (diameter 149mm, stainless steel sheathed), Sealing Gasket (diameter 126mm), Heat Shield Assembly, Heavy-Duty Clamp,
SCR Valve Muffler Assembly, Muffler Auxiliary Bracket, Hexagon Flange Serrated Bolts M12*1.25, Muffler Upper Heat Shield, Upper Heat Shield Large Bracket, Upper Heat Shield Small Bracket-Front, Hexagon Head Bolts M8, Plain Washers, Hexagon Head Bolts M6, Upper Heat Shield Small Bracket-Rear, Trim Panel Mounting Bracket,
Hexagon Head Bolts M6, Cross Recessed Screw with Washer Assembly, Special Shaped Washer Nut (M6), Hexagon Flange Serrated Bolts M14*1.5, Hexagon Flange Serrated Nuts M14*1.5, Hexagon Flange Serrated Nuts M16*1.5, Exhaust Pipe Hanger, Rubber-Metal Cushion, and Hexagon Flange Bolts M10. Every component of this National V Exhaust System is engineered to OEM specifications for a perfect fit and reliable performance.
The National V Exhaust System features a high-efficiency SCR catalytic converter that reduces NOx emissions by up to 90%, combined with a specially tuned muffler that minimizes exhaust noise. The system includes a urea injector boss for precise dosing of Diesel Exhaust Fluid, ensuring compliance with emission regulations.
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 National V Exhaust System.
Whether you are replacing a damaged exhaust system or performing an emissions upgrade, this National V Exhaust System delivers factory-quality components and a straightforward installation. This National V Exhaust System is the definitive choice for operators who demand emission compliance and long-term durability.
This flexible metal hose connects the exhaust manifold to the SCR system. In the National V Exhaust System, it is made of corrugated stainless steel with a braided outer layer, providing flexibility to accommodate engine movement while resisting heat and corrosion.
This bracket supports the muffler assembly and secures it to the chassis frame. In the National V Exhaust System, it is fabricated from 5mm thick steel with a powder-coated finish and includes rubber isolation mounts to reduce vibration.
This decorative panel covers the muffler and provides a finished appearance. In the National V Exhaust System, it is made of stainless steel with a brushed finish and includes mounting brackets for easy installation.
This gasket seals the connection between the exhaust pipe and the SCR converter. In the National V Exhaust System, it is made of high-temperature graphite with a stainless steel insert, capable of withstanding temperatures up to 800°C.
This quick-release clamp securely joins the exhaust pipe sections. In the National V Exhaust System, it is made of stainless steel with a T-bolt design, providing even clamping force and easy disassembly for maintenance.
This is the main exhaust pipe that routes gases from the engine to the SCR system. In the National V Exhaust System, it is made of 409 stainless steel with a 3mm wall thickness, featuring mandrel bends for smooth flow and a bung for an oxygen sensor.
This pipe section includes an integrated boss for the urea injector. In the National V Exhaust System, the boss is precisely positioned to ensure optimal mixing of the urea solution with the exhaust stream for efficient NOx reduction.
These clamps secure the exhaust pipe to the hangers. In the National V Exhaust System, they are made of galvanized steel with a rubber-lined cushion to absorb vibration and prevent pipe damage.
These general-purpose clamps secure various components of the National V Exhaust System. They are made of stainless steel with a worm-drive design for secure fastening.
These M8 bolts are used for securing brackets and hangers. In the National V Exhaust System, they are grade 8.8 and zinc-plated for corrosion resistance.
These locknuts provide a vibration-resistant fastening. In the National V Exhaust System, they are made of grade 10 steel with a deformed thread for prevailing torque.
This large sealing gasket connects the SCR converter to the muffler. In the National V Exhaust System, it is made of multiple layers of graphite with a stainless steel outer sheath, providing excellent sealing at high temperatures.
This smaller sealing gasket is used for other connections in the National V Exhaust System. Made from the same high-temperature material, it ensures leak-free joints throughout the exhaust system.
This assembly protects surrounding components from exhaust heat. In the National V Exhaust System, it is made of double-layer aluminum sheet with an air gap for insulation, reducing underbody temperatures.
These robust clamps secure the muffler and SCR converter. In the National V Exhaust System, they are made of 304 stainless steel with a heavy-duty band that resists deformation.
This is the core component of the National V Exhaust System, combining the SCR catalytic converter and muffler into a single unit. It features a cordierite substrate with a platinum-based catalyst coating and a specially tuned muffler chamber for noise reduction.
This additional bracket provides extra support for the muffler. In the National V Exhaust System, it is designed to work with the main bracket to distribute the weight evenly.
These M12 flange bolts secure the main brackets. In the National V Exhaust System, they feature a serrated flange for positive locking and are grade 10.9 for high strength.
This shield protects the cab floor from exhaust heat. In the National V Exhaust System, it is made of aluminum sheet with a heat-reflective coating and is mounted directly above the muffler.
This bracket supports the upper heat shield. In the National V Exhaust System, it is made of galvanized steel and features adjustable mounting slots for precise positioning.
This front small bracket provides additional support for the heat shield. In the National V Exhaust System, it is designed to fit in tight spaces and includes rubber isolators.
These washers are used under bolt heads to distribute load. In the National V Exhaust System, they are zinc-plated and prevent surface damage to brackets.
These M6 bolts secure the heat shields and trim panels. In the National V Exhaust System, they are grade 8.8 and zinc-plated.
This rear small bracket completes the heat shield support system. In the National V Exhaust System, it is identical in construction to the front bracket but positioned at the rear.
This bracket secures the muffler trim panel. In the National V Exhaust System, it is made of stainless steel and includes pre-drilled holes for easy attachment.
These pre-assembled screws simplify the installation of trim panels. In the National V Exhaust System, they feature a cross recessed head and an integrated washer for even clamping.
These special nuts are used in confined spaces. In the National V Exhaust System, they feature an integral washer and a low-profile design for clearance.
These M14 flange bolts secure the SCR converter and muffler. In the National V Exhaust System, they feature a serrated flange for positive locking and are grade 10.9.
These locknuts pair with the M14 bolts. In the National V Exhaust System, they are made of grade 10 steel and feature a serrated flange for vibration resistance.
These M16 locknuts are used for heavy-duty connections. In the National V Exhaust System, they are grade 10 and feature a serrated flange for positive locking.
This hanger supports the exhaust pipe along its length. In the National V Exhaust System, it is made of rubber-encased steel and features a metal bracket for secure attachment.
These cushions isolate vibration between the exhaust system and the chassis. In the National V Exhaust System, they are made of natural rubber bonded to steel plates, providing long-lasting damping.
These M10 flange bolts secure various brackets. In the National V Exhaust System, they are grade 8.8 and zinc-plated.
The National V Exhaust System is designed to meet the strict Euro V emission standards, reducing NOx emissions by up to 90% and particulate matter by over 95%. This ensures your Sitrak C7H remains compliant with environmental regulations and avoids costly penalties.
This National V Exhaust System kit includes every component needed for a full installation – from the metal hose assembly to the SCR muffler, all brackets, gaskets, clamps, and fasteners. The pre-assembled parts simplify installation, saving time and ensuring compatibility.
All exhaust pipes and major components of the National V Exhaust System are manufactured from 409 or 304 stainless steel, providing excellent resistance to corrosion, heat, and thermal fatigue. This ensures long-term reliability and maintains emission performance over the life of the vehicle.
The National V Exhaust System is manufactured to the exact OEM specifications, guaranteeing a perfect fit on the Sitrak C7H without modifications. The pre-formed pipes and precision-cast components ensure proper alignment and exhaust flow, reducing backpressure and improving engine efficiency.
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