Dongfeng VL truck parts Radiator Assembly 1301010-T45L0

Built to handle the high heat output of Dongfeng VL’s diesel engines (up to 250kW power output), the radiator core uses multi-layer aluminum microchannels (0.3mm thick, 1.5mm pitch) with a total heat dissipation area of 12 m²—35% larger than traditional copper-brass cores. The core’s louvered fins (0.15mm thick, 8 fins per inch) enhance airflow contact, achieving a heat dissipation capacity of 65,000 kcal/h at 90°C coolant temperature. Testing confirms the radiator reduces engine coolant temperature by 15°C within 8 minutes of startup (from 105°C to 90°C) under full load, maintaining the engine’s optimal operating temperature range (85–95°C). The aluminum core also reduces weight by 40% vs. copper-brass alternatives, lowering the VL’s front-end weight and improving fuel efficiency by 2–3% during long-haul trips

Engineered to withstand high coolant pressure (up to 15 psi, the standard for Dongfeng VL’s cooling system), the radiator’s top and bottom tanks are made of glass-fiber reinforced nylon 66 (30% glass fiber content) with a tensile strength of 85 MPa—resisting deformation or cracking under pressure spikes (e.g., during sudden engine load increases). The tank-header connection uses a laser-welded aluminum seam (instead of traditional gaskets), ensuring a leak-proof seal (tested to 20 psi pressure for 2 hours without seepage). The header plates (2.0mm-thick aluminum) are reinforced with 3mm-thick steel brackets at mounting points, preventing bending from engine vibration and extending the radiator’s service life by 50% vs. non-reinforced designs. Additionally, the tanks feature built-in coolant level indicators and pressure relief valves, allowing easy maintenance and preventing overpressure damage to the cooling system

Designed to resist coolant corrosion and scale buildup (major causes of radiator failure), the aluminum core undergoes a chromate conversion coating (50μm thickness) and a hydrophilic polymer coating—preventing aluminum oxidation and reducing scale adhesion by 60%. The nylon tanks are infused with anti-UV additives, resisting brittleness from long-term exposure to engine bay heat (up to 120°C) and sunlight. For regions with hard water (e.g., mining or rural areas), the radiator is compatible with Dongfeng’s specialized coolant (pH 8.5–10.0) that inhibits scale formation, extending the radiator’s maintenance interval to 24 months or 100,000 km. Even after 3,000 hours of exposure to 50% ethylene glycol coolant (simulating long-term use), the radiator retains 95% of its original heat dissipation efficiency and shows no signs of internal corrosion

Designed for quick replacement by fleet technicians, the radiator comes fully assembled with pre-attached inlet/outlet hoses (EPDM rubber, resistant to coolant and high temperatures) and mounting brackets. The hoses feature quick-disconnect couplings that align with the VL’s factory water lines, reducing installation time to 60–90 minutes (vs. 2+ hours for semi-assembled radiators). The radiator’s top tank includes a large-diameter filler neck (45mm) with a twist-lock cap, allowing easy coolant refilling and pressure testing. Each unit undergoes strict pre-delivery testing: 100% pressure testing (15 psi for 1 hour), flow rate verification (≥18 L/min), and leak detection via helium gas (sensitivity to 1×10⁻⁹ atm·cc/s). Backed by a 24-month warranty against defects (e.g., tank cracking, core leakage, fin damage), it includes a spare coolant cap and O-ring to support on-site maintenance, minimizing downtime for Dongfeng VL fleets