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The WG9412531223 inter‑cooler assembly is a genuine SINOTRUK HOWO component engineered to reduce the temperature of compressed intake air, significantly increasing air density and improving combustion efficiency. As a critical element of the trusted Sinotruk howo parts family, this inter‑cooler ensures that your turbocharged diesel engine receives cooler, denser air, resulting in enhanced power output, lower exhaust temperatures, and reduced fuel consumption. Manufactured with a high‑efficiency bar‑plate core and corrosion‑proof aluminum construction, the WG9412531223 unit withstands extreme thermal cycling and vibration in mining, construction, and long‑haul applications. Investing in this authentic component guarantees optimal engine performance and longevity.
Inter‑Cooler Assembly
Интеркулер в сборе
Intercooler ensamblado
The WG9412531223 inter‑cooler assembly utilizes a bar‑plate core design, which offers superior heat transfer and structural rigidity compared to tube‑fin designs. The core consists of stacked aluminum bars and fins brazed together in a vacuum furnace, creating a strong, leak‑free assembly. This construction maximizes the surface area for heat exchange, ensuring that compressed air from the turbocharger is cooled efficiently before entering the intake manifold. The result is a denser air charge, which allows for more complete combustion and increased power.
Each WG9412531223 inter‑cooler assembly is pressure‑tested to 4 bar (60 psi) to ensure absolute sealing integrity. The tanks are made from glass‑filled nylon or cast aluminum, depending on the application, and are designed to withstand the high temperatures and pressures of the charged air system. The unit also features anti‑vibration mounting points and integrated brackets for a direct bolt‑on replacement, reducing installation time and ensuring long‑term reliability in harsh operating environments.
The table below provides detailed technical data for the genuine SINOTRUK HOWO WG9412531223 inter‑cooler assembly. These specifications are essential for verifying compatibility.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | WG9412531223 | SINOTRUK HOWO Original Code |
| Product Name | Inter‑Cooler Assembly (Charge Air Cooler) | Bar‑plate core |
| Core Material | Aluminum alloy (brazed) | High thermal conductivity |
| Tank Material | Glass‑filled nylon / Cast aluminum | Heat resistant |
| Core Dimensions (L x W x H) | 680 mm x 170 mm x 620 mm | Approximate, varies by model |
| Inlet/Outlet Diameter | 76 mm (3″) | For turbo hose connection |
| Maximum Pressure | 4 bar (58 psi) | Tested to burst pressure |
| Temperature Range | -40°C to +220°C | Continuous operation |
| Cooling Efficiency | Up to 75% (temp drop) | At rated air flow |
| Applicable Engines | WD615, MC11, MC13, D10 | Turbocharged diesel |
| Weight (approx.) | 11.8 kg | Complete assembly |
The WG9412531223 inter‑cooler assembly is a direct OEM replacement used on Howo trucks equipped with turbocharged diesel engines, including the WD615, MC11, MC13, and D10 series. It is mounted between the turbocharger compressor outlet and the intake manifold, typically located in front of the radiator to receive maximum airflow. By cooling the compressed air, it reduces the risk of detonation, lowers NOx emissions, and improves fuel economy.
In chassis applications, the inter‑cooler is exposed to road debris, moisture, and thermal stress. A failing inter‑cooler can cause reduced power, increased exhaust smoke, and higher exhaust temperatures, potentially damaging the turbocharger and engine. Using the genuine WG9412531223 ensures that the cooling efficiency and pressure drop remain within factory specifications, safeguarding engine performance and longevity in demanding environments such as mining, construction, and long‑haul transport.
When replacing the inter‑cooler assembly, inspect all charge air hoses for cracks or softness. Use new hose clamps and torque to specification to prevent boost leaks.
Correct installation of the WG9412531223 inter‑cooler assembly is essential to ensure proper engine performance and long service life. Follow these steps:
Disconnect the battery and drain the cooling system if the inter‑cooler is integrated with the radiator. Remove the grille and front fascia as needed. Carefully detach the charge air hoses and any mounting brackets.
Position the new inter‑cooler assembly and secure it with the original brackets. Torque all mounting bolts to the values specified in the service manual. Reconnect the charge air hoses, ensuring they are fully seated and clamps are tightened evenly.
Refill coolant if necessary. Start the engine and check for boost leaks using a smoke machine or soapy water. Verify that intake air temperature drops under load.
A damaged or clogged inter‑cooler assembly can significantly reduce engine performance. Common signs that replacement is needed include:
If any of these symptoms are observed, immediate replacement with a genuine WG9412531223 inter‑cooler assembly is recommended. Continuing to operate with a faulty inter‑cooler can lead to elevated EGTs and engine damage.
Cooler, denser intake air allows for more fuel to be burned efficiently, increasing horsepower and torque without exceeding emission limits.
Better combustion efficiency translates to lower fuel consumption, reducing operating costs over the life of the vehicle.
Bar‑plate core construction resists vibration and thermal fatigue, providing reliable service for hundreds of thousands of kilometers.
To maximize the service life of your WG9412531223 inter‑cooler assembly, follow these best practices:
By adhering to these guidelines, you ensure that the WG9412531223 inter‑cooler assembly performs optimally throughout its intended service interval.
Aftermarket inter‑cooler assemblies often use cheaper tube‑fin designs with lower efficiency and higher pressure drop. They may also have poorly welded tanks that can leak under boost. The genuine WG9412531223 is manufactured to the exact specifications of the original equipment, using vacuum‑brazed bar‑plate technology for maximum heat transfer and structural integrity. Each unit is pressure‑cycled and leak‑tested to ensure it meets the demanding requirements of Howo turbocharged engines.
By choosing authentic SINOTRUK HOWO parts, you protect your investment and ensure your truck maintains its power, efficiency, and resale value. The Sinotruk howo parts catalog includes a full range of engine and chassis components engineered for maximum durability. For fleet managers and owner‑operators who demand the best, the genuine WG9412531223 is the only responsible choice.
The WG9412531223 inter‑cooler assembly is used across a wide range of Howo models: T7H, A7, and classic Howo‑7 series equipped with WD615, MC11, MC13, and D10 engines. It may also fit some SITRAK and other heavy‑duty trucks with similar engine families. Always verify the inlet/outlet orientation and mounting bracket positions using the service manual.
Each WG9412531223 is individually packaged in a heavy‑duty cardboard box with foam supports to protect the core fins during shipping. The package includes the inter‑cooler assembly only; mounting hardware and hoses may need to be ordered separately if required.
Production of the WG9412531223 takes place in IATF 16949 certified facilities, using robotic vacuum brazing and precision assembly. Statistical process control ensures that every core meets the stringent requirements for fin density, pressure drop, and thermal performance. Every batch is accompanied by a material certificate and pressure test report, guaranteeing that the inter‑cooler assemblies delivered are identical to those fitted on new Howo trucks at the factory.
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