Dongfeng GX Radiator Water Inlet Rubber Hose 1303011-H01V0

The hose is crafted from premium EPDM (Ethylene Propylene Diene Monomer) rubber, a material renowned for its exceptional resistance to high temperatures, corrosion, and chemical degradation. It maintains structural stability across a wide operating temperature range of -40°C to 130°C—withstanding the extreme heat of engine coolant and the cold of winter conditions—without hardening, cracking, or swelling. Additionally, EPDM rubber offers strong resistance to automotive fluids (e.g., antifreeze, coolant additives) and ozone, ensuring long-term reliability even under harsh under-hood environments.

To handle the high-pressure demands of the cooling system (up to 150 kPa, typical for Dongfeng GX engines), the hose features a multi-layer reinforced design. A polyester fabric mesh layer is embedded within the EPDM rubber, enhancing tensile strength and preventing expansion or bursting under pressure. Despite its robustness, the hose retains excellent flexibility, allowing it to adapt to the engine compartment’s layout and absorb vibrations from the engine—avoiding kinks that could restrict coolant flow and compromise cooling efficiency.

The hose’s smooth inner wall minimizes coolant flow resistance, ensuring a consistent, high-volume supply of coolant to the radiator—critical for maintaining the engine’s optimal operating temperature. Its connection ends are molded with precise barbs and sealing ribs that create a secure seal when paired with standard hose clamps (compatible with Dongfeng GX’s factory clamps). This leak-proof design prevents coolant loss, which can lead to engine overheating, and eliminates the need for frequent re-tightening or replacement of seals.

Designed for user convenience, the hose’s flexible structure and OE-matching dimensions allow for straightforward installation. It fits directly into the existing mounting points of the Dongfeng GX cooling system, requiring no modifications to the radiator or engine. Professional mechanics or DIY enthusiasts can complete the replacement in 20–30 minutes using common hand tools (e.g., pliers for hose clamps). Furthermore, the durable EPDM material and reinforced construction reduce maintenance needs, with an average service life of 50,000–80,000 kilometers under normal driving conditions.