Dongfeng Xinjiang truck parts Turbocharger rubber hose 1109021-T5KEJ5Y

Built to withstand the extreme conditions of turbocharger systems—where air temperatures reach 180–220°C and pressure spikes to 30 psi—the hose is crafted from a high-performance EPDM (ethylene propylene diene monomer) rubber compound reinforced with 4 layers of high-tensile polyester fabric. This material combination delivers a continuous operating temperature range of -40°C to 230°C (surpassing the turbo system’s maximum 220°C) and a burst pressure of 90 psi (3x the system’s working pressure), ensuring no hose rupture or deformation under peak load. Testing confirms the hose retains 95% of its elasticity and structural integrity after 1,000 hours of exposure to 220°C hot air—critical for preventing boost pressure loss and engine power degradation in long-haul or heavy-load operations (e.g., 30-ton cargo transport uphill)

Engineered to resist degradation from oil vapors, diesel fuel, and engine coolants—common contaminants in turbocharger systems—the EPDM rubber compound features a special anti-oil additive package. It exhibits less than 5% volume change after 500 hours of immersion in engine oil (SAE 15W-40) at 120°C, and less than 3% weight loss after exposure to diesel fuel for 300 hours. This resistance prevents hose swelling, hardening, or cracking caused by chemical exposure—issues that lead to premature failure of standard rubber hoses. Additionally, the hose’s outer surface is treated with an anti-UV coating, resisting brittleness from long-term exposure to engine bay heat and sunlight (passing 2,000 hours of xenon lamp aging with no visible degradation), extending service life by 60% compared to uncoated alternatives

To eliminate air leakage—a major cause of turbo system inefficiency—the hose features a dual-sealing design. The inner bore is precision-machined to a smooth finish (Ra ≤1.6μm), ensuring tight contact with the turbocharger and intercooler fittings. The hose ends are reinforced with a 3mm-thick rubber bead that locks into the factory fittings’ grooves, creating a secondary seal that prevents air escape even if hose clamps loosen slightly. The hose also includes pre-marked clamp positions (15mm from each end) that align with the factory’s recommended clamping points, ensuring optimal pressure distribution and avoiding damage to the hose material. These sealing features maintain a boost pressure retention rate of ≥99%, ensuring the engine operates at peak efficiency (fuel consumption reduced by 2–3% vs. leaky hoses)

Designed for easy replacement by fleet technicians, the hose balances rigidity (to maintain shape under pressure) and flexibility (to accommodate engine vibration and alignment variations). Its bend radius of 150mm allows easy routing into the engine bay’s tight spaces without kinking—kinking is a common issue with rigid hoses that restricts airflow. The hose weighs only 0.8kg, reducing installer fatigue during replacement. It is compatible with the factory’s stainless steel T-bolt clamps (M8 size), requiring no special tools—installation takes 20–25 minutes: remove old clamps and hose, clean fittings, position the new hose using pre-marked clamp lines, tighten clamps to 25 N·m torque, and verify for leaks with a boost pressure test. Each unit undergoes pressure testing (30 psi for 1 hour), dimensional inspection, and material compatibility checks, backed by a 18-month warranty against defects (e.g., cracking, swelling, leakage)