A reliable air conditioning system is essential for driver comfort and alertness, especially during long hauls in extreme climates. The WG1642820007 evaporator from HOWO is engineered to deliver exceptional heat transfer and moisture removal, ensuring that your cabin remains cool and dry even under the most demanding conditions. As a vital Howo/Sitrak truck parts component, this evaporator is constructed from high-grade aluminum with a corrosion-resistant coating, featuring a compact fin-and-tube design that maximizes surface area for rapid thermal exchange. Its precision-engineered refrigerant passages guarantee optimal flow and pressure drop, maintaining the efficiency of the entire AC system. Whether you are replacing a leaking or clogged unit, the WG1642820007 delivers factory-quality cooling performance, reduced humidity, and a fresher cabin environment – making it the preferred choice for professional workshops and fleet operators worldwide.
The WG1642820007 evaporator is the heart of your vehicle’s climate control, responsible for absorbing heat from the cabin air and converting liquid refrigerant into gas. Its efficiency directly impacts cooling capacity, energy consumption, and overall system longevity. A degraded evaporator can lead to weak airflow, musty odors, and increased compressor strain. HOWO has designed this unit with a multi-louver fin geometry that enhances turbulent airflow, improving heat exchange by up to 20% over standard designs. The advanced brazing process ensures leak-proof joints, while the hydrophilic coating promotes water sheeting, reducing condensation and inhibiting bacterial growth. With the WG1642820007, you restore the original cooling power, reduce humidity, and ensure a comfortable driving experience in any season.
Max Cooling
Rapid Heat Transfer
Dehumidification
Comfortable Air
OEM Grade
Genuine HOWO
Corrosion Proof
Hydrophilic Coating
Accurate engineering data ensures proper selection and installation. The WG1642820007 is manufactured to strict OEM tolerances, guaranteeing a seamless fit and optimal performance in your HOWO climate control system.
| Parameter | Specification | Detail |
|---|---|---|
| OEM Number | WG1642820007 | Exact Match |
| Part Name | evaporator | HOWO Genuine |
| Brand | HOWO | Original Equipment |
| Application | HOWO T7H / A7 / Cabin AC | HVAC system |
| Material | Aluminum (3003) with hydrophilic coating | Lightweight, corrosion resistant |
| Core Dimensions (H x W x D) | 250 x 220 x 65 mm | Compact design |
| Fin Pitch | 1.8 mm | High-density |
| Tube Diameter | 9.52 mm (3/8″) | Standard connection |
| Refrigerant | R134a / R1234yf compatible | Flexible use |
| Max Pressure | 20 bar (290 psi) | High safety margin |
| Weight | 1.8 kg | Easy handling |
| Warranty | 12 Months | Manufacturer Guarantee |
The WG1642820007 evaporator is produced using a state-of-the-art vacuum brazing process that ensures uniform joint strength and eliminates flux residue. The core is assembled from precision-stamped aluminum fins and seamless drawn tubes, which are then stacked and brazed in a controlled atmosphere furnace. This results in a monolithic structure with superior heat transfer characteristics and exceptional resistance to vibration fatigue.
The fin design incorporates a louvered pattern that creates turbulent airflow, enhancing the convective heat transfer coefficient. The hydrophilic coating applied to the fins promotes rapid water shedding, preventing ice buildup and reducing the risk of microbial growth that causes unpleasant odors. The refrigerant inlets and outlets are sized to match the original connections, ensuring a perfect fit with the expansion valve and suction line. Every WG1642820007 is leak-tested with helium mass spectrometry to guarantee a hermetic seal, reflecting HOWO’s commitment to quality and reliability.
The WG1642820007 is specifically designed for HOWO heavy-duty trucks, including the T7H, A7, and other models with factory-installed HVAC systems. It directly replaces the original evaporator core, with identical mounting points and refrigerant line connections for a straightforward swap. The core fits into the standard housing, and no modifications to the dashboard or ductwork are required.
This evaporator is also compatible with many Sinotruk and other commercial vehicles that share the same climate control architecture. To confirm fitment, always verify the OEM number on your existing core. If it matches WG1642820007, this component will integrate seamlessly. Keeping this evaporator in your spare parts inventory enables rapid AC repairs, minimizing driver discomfort and downtime during hot seasons.
HOWO T7H
Primary Fitment
HOWO A7
Also Compatible
Cabin AC
Direct Fit
Direct Replacement
No Mods
Replacing a clogged or leaking evaporator with the WG1642820007 restores the original cooling capacity of your AC system. The enhanced fin design and optimized tube spacing allow for greater heat absorption, resulting in cabin temperatures that drop faster and maintain lower levels even at idle. The improved dehumidification keeps windows clear and reduces interior moisture, enhancing visibility and comfort.
The hydrophilic coating also reduces the risk of dirt and bacteria accumulation, improving air quality and reducing unpleasant odors. For fleet operators, a properly functioning evaporator reduces compressor strain, improving fuel efficiency and extending the life of the AC system. By investing in the WG1642820007, you ensure that your drivers remain comfortable and focused, no matter the weather outside.
Replacing the WG1642820007 evaporator is a delicate process best performed by an experienced technician. Begin by safely recovering the refrigerant from the AC system in accordance with environmental regulations. Remove the dashboard panels and HVAC housing to access the existing evaporator.
Disconnect the refrigerant lines and carefully remove the old core. Clean the housing interior and inspect the expansion valve and blower fan for any damage. Install the new evaporator, ensuring that the O-rings are properly lubricated with refrigerant oil. Reconnect the lines, replace any desiccant bag or accumulator, and reassemble the housing. Evacuate the system to remove moisture and air, then recharge with the specified refrigerant charge. Test the system for performance and check for leaks. With careful installation, the WG1642820007 will provide many years of cool, comfortable air.
Pro Tip: Always replace the expansion valve and receiver-drier when installing a new evaporator. These components are prone to contamination and aging, and replacing them together ensures the entire system operates at peak efficiency. The WG1642820007 is designed to work seamlessly with fresh components.
Genuine HOWO components are engineered to the highest standards, and the WG1642820007 evaporator is no exception. Aftermarket evaporators often use thinner aluminum, less efficient fin designs, or inferior coatings, resulting in reduced cooling capacity, premature leaks, and poor air quality. HOWO’s evaporator is manufactured using the same materials and processes as the original equipment, guaranteeing a perfect fit and reliable performance.
By choosing the WG1642820007, you benefit from HOWO’s rigorous validation, including thermal cycle testing, burst pressure testing, and corrosion resistance evaluation. This ensures that the evaporator can withstand the harsh conditions 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 WG1642820007?
A: It is designed for HOWO T7H, A7, and other models with factory AC, as well as many Sinotruk trucks with similar HVAC systems.
Q: What are the symptoms of a failing evaporator?
A: Reduced cooling capacity, weak airflow, unpleasant odors, visible refrigerant leaks, or moisture inside the cabin are common indicators.
Q: Can I clean the evaporator instead of replacing it?
A: In some cases, professional cleaning may help, but if it is leaking or severely clogged, replacement with a new WG1642820007 is the only permanent solution.
Q: How do I confirm the correct part?
A: Check the OEM number on your existing evaporator. If it matches WG1642820007, this is the exact replacement. You may also consult your vehicle’s parts manual.
Order your WG1642820007 Evaporator today! Explore our complete selection of genuine HOWO and Sinotruk HVAC parts at Howo/Sitrak truck parts and keep your cabin comfortable year-round.
The WG1642820007 Evaporator from HOWO is a testament to superior thermal engineering and durable construction. By choosing this genuine component, you ensure that your cabin remains cool, dry, and comfortable, enhancing driver satisfaction and productivity. Whether you are a professional mechanic or a fleet manager, this evaporator offers the efficiency and reliability 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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