The intercooler is the unsung hero of turbocharged engine performance, cooling the compressed charge air to increase density and oxygen content for more powerful combustion. The WG9925530277 4 Intercooler Assembly from HOWO is engineered to deliver exceptional heat dissipation, robust construction, and a precise factory fit, ensuring that your engine consistently produces maximum power while maintaining safe operating temperatures. As a vital Howo/Sitrak truck parts component, this intercooler assembly features a high‑density aluminium core with advanced fin geometry, offering superior cooling capacity and minimal air‑side pressure drop. Its robust design withstands the rigors of heavy‑duty operation, resisting corrosion, vibration, and thermal cycling. Whether you are replacing a damaged cooler or upgrading your intake system, the WG9925530277 4 delivers factory‑spec performance, improved fuel economy, and lasting reliability – making it the preferred choice for professional workshops and fleet operators worldwide.
The intercooler plays a pivotal role in reducing the temperature of the compressed air from the turbocharger. Cooler air is denser, containing more oxygen per unit volume, which allows the engine to inject more fuel and produce significantly more power without increasing the risk of detonation. The WG9925530277 4 is specifically designed to maximise this cooling effect, using a high‑efficiency bar‑and‑plate core that provides a large surface area for heat exchange while maintaining a low pressure drop. This ensures that the turbocharger can deliver boost quickly and efficiently, improving throttle response and reducing turbo lag. A poorly performing or damaged intercooler can lead to elevated intake air temperatures, reducing power output, increasing fuel consumption, and potentially causing engine damage. HOWO has engineered this assembly with precision‑formed aluminium tanks and a durable epoxy coating, ensuring long‑term corrosion resistance and structural integrity. With the WG9925530277 4, you restore the original cooling efficiency, allowing your engine to breathe cool, dense air and deliver the full performance potential of your HOWO truck.
Efficient Cooling
Charge Air
Low Pressure Drop
High Boost
OEM Fit
Exact Match
Corrosion Proof
Aluminium Core
Accurate engineering data ensures correct selection and installation. The WG9925530277 4 is manufactured to the strictest OEM tolerances, guaranteeing seamless integration with your HOWO turbocharger system.
| Parameter | Specification | Detail |
|---|---|---|
| OEM Number | WG9925530277 4 | Exact Match |
| Part Name | Intercooler Assembly | Genuine HOWO |
| Brand | HOWO | Original Equipment |
| Application | HOWO T7H / A7 / MC11/MC13 | Charge air cooling |
| Core Type | Bar‑and‑plate aluminium | High efficiency |
| Core Dimensions (H x W x D) | 550 x 680 x 65 mm | Large surface area |
| Fin Pitch | 1.6 mm | High density |
| Inlet / Outlet Diameter | 75 mm (both) | Standard hose fit |
| Max Operating Pressure | 3.0 bar (43.5 psi) | Burst tested |
| Temperature Range | -40°C to +200°C | Extreme duty |
| Mounting Type | 4‑point bracket | OEM spec |
| Weight | 8.5 kg | Substantial |
| Warranty | 12 Months | Manufacturer Guarantee |
The WG9925530277 4 is produced using advanced vacuum brazing technology, which ensures a strong, leak‑free bond between the core tubes, fins, and tank ends. The bar‑and‑plate core design offers superior durability and heat transfer efficiency compared to older tube‑and‑fin designs, providing a larger contact surface for the cooling air and reducing the risk of damage from road debris. The aluminium alloy used is treated with a corrosion‑resistant coating that prevents oxidation and extends the service life of the core. The end tanks are precision‑stamped and welded to the core, ensuring a smooth transition for the airflow and minimising turbulence. Each assembly is pressure‑tested and inspected for dimensional accuracy, guaranteeing that the WG9925530277 4 meets HOWO’s stringent quality standards. This engineering excellence translates into an intercooler that consistently delivers cool, dense air to the engine, enabling maximum power output, improved fuel efficiency, and reliable operation under the most demanding conditions.
The WG9925530277 4 is specifically designed for HOWO T7H and A7 trucks equipped with MC11 or MC13 engines, as well as many Sinotruk models that share the same intake system architecture. It directly replaces the original intercooler with identical mounting points, hose connections, and overall dimensions, ensuring a straightforward bolt‑on installation without modifications. The intercooler is compatible with both standard and heavy‑duty cooling packages.
To confirm fitment, always cross‑reference the OEM number on your existing intercooler with WG9925530277 4. If they match, this component will integrate seamlessly. Keeping this intercooler in your spare parts inventory enables rapid charge air cooling repairs, minimising downtime and preserving the performance and reliability of your turbocharged engine.
HOWO T7H
Primary Fitment
HOWO A7
Also Compatible
MC11/MC13
Turbocharged
Direct Replacement
No Mods
Replacing a clogged, damaged, or inefficient intercooler with the WG9925530277 4 immediately restores the cooling efficiency of the charge air system. The improved heat rejection lowers intake air temperatures by up to 40°C, significantly increasing air density and allowing for more fuel to be burned. This translates into a noticeable increase in horsepower and torque, particularly in the mid‑range where turbocharged engines typically operate. The reduced intake temperature also lowers the risk of engine knock, enabling the ECU to run more aggressive timing maps for even better performance.
The low pressure drop of the bar‑and‑plate core allows the turbocharger to maintain boost pressure more effectively, reducing turbo lag and improving throttle response. The improved airflow and cooler combustion also contribute to lower exhaust gas temperatures, reducing thermal stress on the turbocharger and exhaust manifold. For fleet operators, a properly functioning intercooler reduces fuel consumption, extends the life of the turbocharger, and enhances the overall drivability of the vehicle. By investing in the WG9925530277 4, you ensure that your HOWO truck delivers the maximum power and efficiency that its turbocharged engine was designed for.
Installing the WG9925530277 4 Intercooler Assembly is a moderately complex task best performed by a qualified technician. Begin by safely supporting the vehicle and removing the front grille or bumper as necessary to access the intercooler. Disconnect the charge air hoses, being careful not to damage the fittings. Remove the old intercooler by unbolting it from its mounting brackets.
Clean the mounting surfaces and inspect the hoses for cracks or wear; replace if necessary. Install the new intercooler using the original bolts and brackets, torquing them to the manufacturer’s specification. Reconnect the hoses, ensuring they are properly seated and secured with clamps. After installation, start the engine and check for any boost leaks by listening for hissing sounds or using a soapy water test. Periodically inspect the intercooler for signs of external damage or oil contamination, and clean the core with a gentle stream of water or compressed air. With proper installation and regular maintenance, the WG9925530277 4 will provide years of reliable, efficient charge air cooling.
Pro Tip: When replacing the intercooler, it is advisable to also inspect the charge air hoses and clamps for wear or deterioration. The WG9925530277 4 is designed to work with the original hose diameters; ensure all connections are tight to prevent boost leaks that can reduce performance.
Genuine HOWO components are engineered to the highest standards, and the WG9925530277 4 Intercooler is no exception. Aftermarket intercoolers often use thinner aluminium, less efficient fin designs, or inaccurate mounting points, leading to reduced cooling performance, pressure drops, and fitment issues. HOWO’s intercooler is manufactured using the same materials and processes as the original equipment, guaranteeing a perfect fit and reliable performance.
By choosing the WG9925530277 4, you benefit from HOWO’s rigorous testing, including thermal cycling, pressure pulse, and vibration tests. This ensures that the intercooler meets the demanding requirements of heavy‑duty trucking. Moreover, genuine parts are backed by a comprehensive warranty and supported by HOWO’s global network, giving you confidence in your purchase.
OEM Authentic
Factory Quality
Long Service
Extended Life
Global Standard
Trusted Worldwide
Q: Which vehicles use the WG9925530277 4?
A: It is designed for HOWO T7H and A7 trucks with MC11/MC13 turbo engines, as well as many Sinotruk models with similar charge air systems.
Q: What are the signs of a failing intercooler?
A: Reduced engine power, increased fuel consumption, excessive exhaust smoke, and an unusually high intake air temperature reading are common indicators. Visual inspection may reveal cracks, oil leaks, or damaged fins.
Q: Is this a direct replacement for the original intercooler?
A: Yes, the WG9925530277 4 is a direct OEM replacement with identical dimensions, mounting points, and hose connections.
Q: How do I verify the correct part?
A: Check the OEM number on your existing intercooler. If it matches WG9925530277 4, this is the exact replacement. Consult your vehicle’s parts manual for additional confirmation.
Order your WG9925530277 4 Intercooler today! Explore our complete selection of genuine HOWO and Sinotruk charge air cooling components at Howo/Sitrak truck parts and keep your engine breathing cool, dense air for maximum performance and efficiency.
The WG9925530277 4 Intercooler Assembly from HOWO is a testament to precision thermal engineering and uncompromising quality. By choosing this genuine component, you ensure that your truck’s turbocharged engine receives the cool, dense air it needs to produce maximum power while maintaining safe operating temperatures. Whether you are a professional mechanic or a fleet manager, this intercooler offers the cooling performance, durability, and exact fit required for modern heavy‑duty trucks. Trust HOWO – the benchmark for excellence in heavy‑duty truck components – and experience the difference that genuine quality makes.
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