Product Details
Comprehensive Professional Description: Dongfeng H30 Radiator (Part No. 2801005)
1. Basic Overview & Core Functional Positioning
The 2801005 radiator is an authentic Original Equipment Manufacturer (OEM) component exclusively engineered and produced by Dongfeng Motor Corporation for the Dongfeng H30 compact sedan, a model renowned for its reliability, fuel efficiency, and practicality in daily commuting and family use. As a core component of the vehicle’s cooling system, the 2801005 radiator plays an irreplaceable role in regulating the engine’s operating temperature, ensuring the Dongfeng H30’s power unit operates within the optimal temperature range (typically 80–90°C) under all driving conditions. Unlike ordinary auxiliary components, the radiator operates in a harsh environment, enduring high-temperature coolant, continuous vibration, and exposure to external debris, making its quality, durability, and heat dissipation performance directly decisive for the engine’s reliability, service life, and overall vehicle safety.
The Dongfeng H30, equipped with gasoline engines (typically 1.6L naturally aspirated engines), relies heavily on the 2801005 radiator to dissipate the massive heat generated by the engine during combustion and operation. The engine’s internal components, such as pistons, crankshafts, and cylinder heads, operate under extreme temperatures and pressures; without efficient heat dissipation, the engine would overheat, leading to severe consequences such as reduced power output, increased fuel consumption, engine knocking, cylinder head warpage, or even catastrophic engine failure. The 2801005 radiator serves as the “heat exchanger core” of the cooling system, responsible for transferring the heat absorbed by the engine coolant to the surrounding air, thereby maintaining the engine’s stable operating temperature and ensuring the vehicle’s smooth and safe operation.
The part number 2801005 is a unique identifier for this Dongfeng H30-specific radiator, distinguishing it from radiators used in other Dongfeng models (such as the Dongfeng S30, AX7, or奕炫) or non-Dongfeng brand vehicles. As a genuine OEM component, the 2801005 radiator strictly complies with Dongfeng’s original design standards, material specifications, and performance requirements, ensuring perfect compatibility with the Dongfeng H30’s engine, cooling fan, and coolant circulation system. Unlike inferior aftermarket radiators that often cut corners in material quality and design, the genuine 2801005 radiator undergoes rigorous testing and validation to meet international automotive industry standards, making it the preferred choice for Dongfeng H30 owners and professional automotive repair technicians who prioritize long-term reliability and performance.
In addition to its core heat dissipation function, the 2801005 radiator also plays a supporting role in protecting other vehicle components. By maintaining the engine’s optimal temperature, it prevents premature wear of engine seals, gaskets, and other rubber or metal components, which are prone to aging and failure under high temperatures. It also ensures the stability of the vehicle’s air conditioning system, as the radiator and condenser (often mounted adjacent to each other) work in tandem to maintain proper heat exchange efficiency. A faulty or inefficient 2801005 radiator can lead to a range of symptoms, including engine overheating warnings, coolant leakage, reduced air conditioning performance, and even engine stalling—all of which can disrupt daily use and result in costly repairs. Therefore, the genuine 2801005 radiator is an essential replacement part for maintaining the Dongfeng H30’s performance and reliability.
2. Premium Material Selection & Precision Manufacturing Process
The Dongfeng 2801005 radiator is crafted from high-performance, automotive-grade materials, carefully selected by Dongfeng’s engineering team to balance heat dissipation efficiency, structural strength, corrosion resistance, and lightweight design—key performance indicators for automotive radiators. Drawing on industry experience and material science advancements, Dongfeng prioritizes materials that can withstand the long-term effects of high-temperature coolant, harsh weather conditions, and mechanical vibration, ensuring the radiator maintains stable performance over a service life of typically 80,000–120,000 kilometers under normal operating conditions.
The core structure of the 2801005 radiator consists of three main components: the radiator core, header tanks (upper and lower), and inlet/outlet ports. Each component is made of specialized materials tailored to its function. The radiator core, which is the primary heat exchange area, is composed of high-purity aluminum fins and aluminum tubes. Aluminum is selected for its excellent thermal conductivity (approximately 205 W/m·K), lightweight properties (density of 2.7 g/cm³), and good corrosion resistance—critical for withstanding the chemical composition of engine coolant (typically a mixture of ethylene glycol and water) and external environmental factors such as moisture, dust, and road salt. The aluminum fins are made of 0.1–0.15 mm thick high-quality aluminum alloy, while the tubes are made of 0.8–1.0 mm thick aluminum alloy, ensuring a balance between heat transfer efficiency and structural rigidity.
The upper and lower header tanks of the 2801005 radiator are made of high-strength engineering plastic (PA66+GF30), a material known for its excellent impact resistance, heat resistance (able to withstand temperatures up to 120°C), and chemical resistance to coolant and other automotive fluids. The plastic header tanks are reinforced with glass fiber (30% glass fiber content) to enhance structural strength and prevent deformation under high pressure and temperature fluctuations. Unlike traditional metal header tanks, plastic tanks offer the advantages of lightweight design (reducing overall vehicle weight and improving fuel efficiency) and corrosion resistance, eliminating the risk of rust and leakage common in metal tanks. The inlet and outlet ports, which connect the radiator to the engine’s coolant circulation system, are integrated into the header tanks and reinforced with metal inserts to ensure a tight, leak-proof connection with the coolant hoses.
The manufacturing process of the 2801005 radiator follows a strict, ISO 9001 and IATF 16949 certified production workflow, consistent with Dongfeng’s global quality standards and modern automotive radiator manufacturing practices. The production process begins with the precision stamping of aluminum fins and the extrusion of aluminum tubes. The fins are stamped with a corrugated pattern, which increases the surface area and enhances heat dissipation efficiency by creating turbulence in the air flow passing through the core. The aluminum tubes are extruded into a multi-channel design (typically 4–6 channels per tube), which maximizes the contact area between the coolant and the tube walls, improving heat transfer.
Next, the radiator core is assembled using a brazing process, which involves heating the aluminum fins and tubes to a high temperature (approximately 600°C) in a controlled atmosphere furnace. This brazing process ensures a strong, seamless bond between the fins and tubes, eliminating gaps that could reduce heat transfer efficiency or cause coolant leakage. The brazed core is then inspected for structural integrity, with special attention to the quality of the brazed joints. After the core is approved, the upper and lower header tanks are attached to the core using a combination of adhesive bonding and mechanical fasteners. The adhesive used is a high-temperature resistant, waterproof adhesive that can withstand the extreme temperature fluctuations of the cooling system, ensuring a leak-proof seal between the core and tanks.
The final step in the manufacturing process involves rigorous quality control testing to ensure the 2801005 radiator meets Dongfeng’s strict performance standards. These tests include pressure testing, leak testing, heat dissipation efficiency testing, and dimensional accuracy testing. Pressure testing involves filling the radiator with coolant and applying a pressure of 0.8–1.0 MPa (8–10 bar) for 30–60 minutes to check for leaks. Leak testing uses a vacuum test or helium leak detection to identify even the smallest leaks that could lead to coolant loss. Heat dissipation efficiency testing simulates real-world operating conditions, measuring the radiator’s ability to dissipate heat under different engine loads and ambient temperatures. Dimensional accuracy testing verifies that the radiator’s overall dimensions, mounting hole positions, and inlet/outlet port sizes are within the specified tolerance range (±0.5 mm), ensuring perfect fitment with the Dongfeng H30’s engine bay. Only radiators that pass all these tests are allowed to leave the factory, ensuring the 2801005 series delivers reliable performance and long service life in the Dongfeng H30.
3. Structural Composition & Key Design Features
The Dongfeng 2801005 radiator features a precision-engineered structural design, tailored to the specific requirements of the Dongfeng H30’s engine and cooling system. Its structural composition is optimized to maximize heat dissipation efficiency, ensure structural stability, and facilitate easy installation and maintenance, with key design features that address the unique challenges of automotive radiator operation. Unlike generic aftermarket radiators, which often have a simplistic design with poor fitment and inadequate performance, the 2801005 radiator incorporates multiple specialized features to ensure consistent performance, reliability, and durability.
One of the key design features of the 2801005 radiator is its cross-flow design, which is the industry standard for modern automotive radiators. In a cross-flow design, the coolant enters the upper header tank through the inlet port, flows horizontally through the aluminum tubes to the lower header tank, and exits through the outlet port. This design allows for a more uniform distribution of coolant across the radiator core, maximizing heat transfer efficiency. The cross-flow design also enables the radiator to be mounted horizontally in the Dongfeng H30’s engine bay, optimizing space utilization and ensuring proper air flow from the vehicle’s front grille and cooling fan.
The radiator core of the 2801005 model features a dense fin and tube arrangement, with a fin density of approximately 12–15 fins per centimeter. The corrugated aluminum fins are carefully spaced to balance heat dissipation efficiency and air flow resistance—too dense fins would restrict air flow, while too sparse fins would reduce heat transfer surface area. The multi-channel aluminum tubes (4–6 channels per tube) are arranged in a parallel pattern, ensuring that the coolant flows evenly through each tube, maximizing the contact area between the coolant and the tube walls. This design ensures that the radiator can efficiently dissipate the heat generated by the Dongfeng H30’s 1.6L engine, even under harsh conditions such as high-speed driving, heavy loads, or hot ambient temperatures.
Another critical design feature of the 2801005 radiator is its integrated pressure relief valve, located on the upper header tank. The pressure relief valve is designed to maintain the optimal pressure (typically 0.9–1.1 bar) within the cooling system, which raises the boiling point of the coolant (from 100°C at atmospheric pressure to approximately 120°C) and improves heat dissipation efficiency. If the pressure in the cooling system exceeds the specified limit (e.g., due to overheating), the pressure relief valve opens, releasing excess pressure and preventing damage to the radiator, hoses, or other cooling system components. The valve also prevents air from entering the cooling system, which could cause air pockets and reduce heat transfer efficiency.
The 2801005 radiator is also designed with precision mounting brackets, which are integrated into the upper and lower header tanks. These mounting brackets are engineered to match the exact mounting points in the Dongfeng H30’s engine bay, ensuring a secure, vibration-free fit. The brackets are made of reinforced plastic, which absorbs mechanical vibration from the engine and road, reducing stress on the radiator core and preventing premature failure. Additionally, the mounting brackets are designed to allow for easy installation and removal, simplifying maintenance and replacement procedures.
To enhance corrosion resistance and durability, the 2801005 radiator’s aluminum core is treated with a specialized anti-corrosion coating (typically a chromate conversion coating or anodization). This coating forms a protective barrier on the aluminum surface, preventing rust, oxidation, and corrosion caused by coolant, moisture, and road salt. The plastic header tanks are also treated with a UV-resistant coating, which prevents fading, cracking, and degradation caused by prolonged exposure to sunlight. These protective treatments extend the radiator’s service life and ensure it maintains stable performance in harsh environmental conditions.
The inlet and outlet ports of the 2801005 radiator are designed with a flared shape, which ensures a tight, leak-proof connection with the coolant hoses. The ports are also reinforced with metal inserts, which prevent damage from the hose clamps and ensure the connection remains secure even under high pressure and temperature fluctuations. Additionally, the ports are positioned to match the Dongfeng H30’s coolant circulation system, ensuring a seamless flow of coolant between the engine and radiator.
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