

The Sinotruk Howo Cooling System is a critical thermal management assembly engineered to maintain optimal engine temperatures for Sinotruk Howo heavy-duty trucks. This comprehensive system prevents overheating during demanding operations, ensuring engine reliability and longevity. Comprising radiators, intercoolers, hoses, pipes, brackets, and supporting components, it facilitates efficient heat exchange and coolant circulation. As a vital assembly among Sinotruk Howo parts, this cooling system is specifically designed for various engine models including WD615 and HHR configurations. Its robust construction and precise engineering protect the engine from thermal stress, reducing wear and maintaining fuel efficiency in all operating conditions.
The Sinotruk Howo Cooling System is an integrated network designed to dissipate excess heat from the engine and associated components. It uses a liquid coolant circulated through the engine block, radiator, and interconnected hoses to transfer heat away from critical parts, maintaining optimal operating temperatures even under heavy loads.
This system consists of primary heat exchangers like the radiator and aftercooler (intercooler), which lower coolant and intake air temperatures. It includes a network of hoses, inlet/outlet water pipes, air pipes, an expansion tank, and supporting shrouds that direct airflow and contain coolant, ensuring efficient thermal exchange.
A robust structural framework supports the entire cooling assembly. This includes left and right radiator brackets, supporting plates, rubber supports, clamps, and various fasteners. This framework ensures the radiator, aftercooler, and hoses are securely mounted, resistant to vibration, and properly aligned for maximum cooling efficiency.
The system is meticulously engineered for compatibility with specific Sinotruk Howo engine models, such as WD615.47, .62, .69, .82, .87, and HHR (HOWO with HDO engine drive right). Components like shrouds, outlet pipes, and brackets are tailored to each configuration, ensuring perfect fitment and performance.
| No. | Part Number | Designation |
|---|---|---|
| 1 | 190003989315 | Clamp |
| 2 | WG9719530108 | Hose |
| 3 | WG9725538041 | Hose |
| 4 | WG9719530107 | Hose connector |
| 5 | WG9725538043 | Hose |
| 6 | WG9725538070 | Hose |
| 7 | WG9719530108 | Hose |
| 8 | WG9725538042 | Hose |
| 9 | WG16160840040 | Hose |
| 10 | 1900043989301 | Clamp |
| 11 | WG9719530250 | Aftercooler |
| 12 | WG9725530020 | Aftercooler |
| 13 | WG9725530090 | Aftercooler |
| 14 | WG9725538060 | Aftercooler |
| 15 | WG9719530230 | Radiator |
| 16 | WG9719530070 | Radiator |
| 17 | WG9725530300 | Radiator |
| 18 | Q15080816 | Screw |
| 19 | Q41208 | Washer |
| 20 | Q15080820 | Spring washer |
| 21 | Q40308 | Screw |
| 22 | Q41508 | Spring washer |
| 23 | Q40110 | Washer |
| 24 | Q33208 | Cutting |
| 25 | WG9719530118 | Clamp |
| 26 | WG9719530128 | Hose |
| 27 | WG9719530130 | Clamp |
| 28 | WG9719530140 | Inletwater pipe |
| 29 | WG9719530150 | Inletwater pipe |
| 30 | WG9719530160 | Outlet air pipe |
| 31 | WG9719530170 | Outlet air pipe |
| 32 | WG9719530180 | Outlet air pipe |
| 31 | WG9114530139 | Hose |
| 32 | WG9716530307 | Hose |
| 33 | WG9716530305 | Hose |
| 34 | WG9716530310 | Emotion pipe |
| 35 | WG9112530468 | Hose |
| 36 | WG9719530228 | Hose |
| 45 | WG9719530212 | Outlet water pipe |
| 45 | WG9719530003 | Outlet water pipe |
| 45 | WG9719537007 | Outlet water pipe |
| 45 | WG9719537014 | Outlet water pipe |
| 46 | WG9719530277 | Hose |
| 46 | WG9719537021 | Hose |
| 46 | WG9719538063 | Hose |
| 46a | AZ9716530505 | Bracket |
| 46b | AZ9716530521 | Bracket |
| 49 | WG9719530260 | Expansion tank |
| 49 | AZ9711530333 | Expansion tank |
| 49a | AZ9725538095 | Bracket |
| 49b | AZ9725538125 | Bottom bracket |
| 61 | AZ9725538055 | Shroud |
| 61 | WG9719537001 | Shroud |
| 61 | AZ9719530122 | Shroud |
| 61 | AZ9725530401 | Shroud |
| 61 | AZ9719530397 | Shroud |
| 65 | AZ9719530272 | Rubber support |
| 65a | Q40010 | Washer |
| 65b | Q40310 | Spring washer |
| 66c | Q33210 | Nut |
| 70 | AZ9719530201 | Bracket left for radiator |
| 70a | AZ9719530202 | Bracket right for radiator |
| 70b | Q150801816 | Screw |
| 70c | Q40408 | Spring washer |
| 75 | AZ9719530205 | Supporting plate left |
| 75a | AZ9719530206 | Supporting plate right |
| 75b | Q15081025 | Screw |
| 75c | Q340810 | Nut |
| 80 | AZ9725538065 | Pro-supporter for radiator |
| 80a | AZ9725538066 | Bottom supporter for radiator |
| 81 | AZ9725538075 | Left bracket for radiator |
| 85 | AZ9725538076 | Right bracket for radiator |
Our cooling system is engineered to provide precise temperature control, preventing engine overheating and associated damage. This protection extends engine life, reduces breakdowns, and maintains consistent power output, which is crucial for the demanding workloads of heavy-duty trucks.
We supply the entire cooling system as a complete kit with all necessary components—from major radiators and aftercoolers to every hose, clamp, bracket, and fastener. This ensures full compatibility with your specific Sinotruk Howo model, simplifying procurement and installation.
Components are manufactured from high-quality materials designed to withstand high pressures, temperatures, and vibration. Durable rubber supports, reinforced hoses, and sturdy brackets ensure long-term reliability and minimize the risk of leaks or failures in extreme operating conditions.
A properly functioning cooling system directly contributes to fuel efficiency and engine performance. By maintaining ideal operating temperatures, our system helps the engine run cleaner and more efficiently, reducing fuel consumption and emissions while delivering maximum power.
Invest in the reliability and longevity of your Sinotruk Howo truck with our genuine, complete cooling system. Prevent costly overheating issues and maintain peak engine performance. Access detailed technical documentation or request a quote tailored to your vehicle’s model and requirements.
Download Full Parts List Request a System QuoteIf you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.