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WG9730530011 Intercooler Inlet Hose – Durable Boost Intake for SINOTRUK HOWO

PART NO.:
WG9730530011
Part Name:
Intercooler Inlet Hose
Russian Name:
Впускной шланг промежуточного охладителя

For reliable turbocharger-to-intercooler airflow, genuine Sinotruk howo parts are essential for maintaining optimal engine performance. The WG9730530011 Intercooler Inlet Hose is a critical component that delivers compressed, hot air from the turbocharger to the intercooler for cooling. Engineered from high-grade silicone rubber with robust textile reinforcement, this hose withstands extreme temperatures and pulsating boost pressures without deforming or leaking. The WG9730530011 is manufactured to exact OEM geometry, ensuring a precise fit and secure connection for SINOTRUK HOWO turbo-diesel engines.

OEM reference WG9730530011 – direct-fit intercooler inlet hose for SINOTRUK HOWO heavy-duty trucks.

Intercooler Inlet Hose

Intercooler Inlet Hose (EN)

Входной шланг интеркулера

Входной шланг интеркулера (RU)

Manguera de entrada del intercooler

Manguera de entrada del intercooler (ES)

The intercooler inlet hose must handle the full force of turbocharged air, often exceeding 200°C and 3.5 bar of pressure. The WG9730530011 is constructed from a premium silicone compound that remains flexible across a wide temperature range while resisting oil, fuel, and ozone degradation. Its multi-layer reinforcement provides exceptional burst strength and dimensional stability.

Each hose is 100% pressure-tested and dimensionally inspected to guarantee a perfect seal at both turbocharger and intercooler connections. The smooth internal bore minimizes flow restriction and turbulence, ensuring that the intercooler receives the maximum possible air volume for cooling. The WG9730530011 is a durable, direct-fit replacement that restores power and efficiency.

Key Benefits of the WG9730530011 Intercooler Inlet Hose

Extreme Pressure Resistance

The WG9730530011 features aramid fiber reinforcement, enabling it to withstand burst pressures up to 12 bar, far exceeding standard operating conditions.

High-Temperature Performance

Designed to handle continuous temperatures up to 220°C, this hose prevents softening or blistering in the hot engine bay.

Oil & Chemical Resistance

The silicone material resists degradation from engine oil, diesel fuel, and coolant vapors, ensuring long-term reliability.

Precision OEM Fitment

This hose replicates the original routing, length, and connector profiles, allowing for swift installation without modifications.

The engineering behind this inlet hose focuses on maintaining consistent airflow under all operating conditions. The hose’s internal diameter is carefully matched to the turbocharger outlet and intercooler inlet to prevent turbulence-induced pressure drops. The integrated anti-collapse design ensures that the hose retains its shape even under high vacuum conditions that can occur during sudden throttle closure. With the WG9730530011, the engine receives a steady, uninterrupted supply of compressed air, enabling optimal combustion efficiency.

Installation is straightforward: release the old clamps, remove the worn hose, clean the connection pipes, and fit the new WG9730530011 with fresh clamps torqued to 4–5 Nm. Always inspect the turbocharger and intercooler outlets for damage or debris before installation. After installation, conduct a boost leak test to ensure all connections are sealed. A genuine OEM hose guarantees that the air volume and pressure reaching the intercooler are exactly as designed, protecting the engine from lean conditions.

Technical Specifications – WG9730530011 Intercooler Inlet Hose

OEM Part Number WG9730530011
Product Name Intercooler Inlet Hose (Charge Air Hose)
Brand / Application SINOTRUK HOWO (Heavy-duty diesel engines)
Length (overall) 520 mm ± 5 mm
Inner Diameter (turbo side) 70 mm
Inner Diameter (intercooler side) 76 mm
Max Operating Pressure 5.5 bar (working), 12 bar (burst)
Temperature Range -40°C to +220°C
Material High-temp silicone with aramid reinforcement, 4-ply construction

All dimensions and performance ratings are verified against SINOTRUK HOWO factory specifications. This hose is manufactured under ISO 9001:2015 quality control.

When to Replace Your WG9730530011 Intercooler Inlet Hose

The intercooler inlet hose is subjected to extreme heat and pressure daily, making it prone to hardening, cracking, or delamination over time. A failing hose can cause boost leaks, leading to reduced power, increased exhaust temperatures, and higher fuel consumption. Replacing it with the WG9730530011 restores intake integrity and engine responsiveness, especially in high-mileage vehicles or those operating in hot climates.

Fleet maintenance records show that replacing aged inlet hoses with the WG9730530011 can improve fuel economy by up to 5% and reduce turbocharger stress. The hose’s robust construction prevents sudden failure, eliminating the risk of roadside breakdowns caused by boost loss. Regular inspection is recommended as part of a proactive maintenance schedule.

Maintenance Tips for WG9730530011

Inspect the inlet hose for cracks, bulges, or chafing against engine components during regular service intervals. Check the clamp tension and replace any corroded or damaged clamps. Clean the hose exterior with a mild detergent to remove oil and dirt that can accelerate material degradation. If the hose feels excessively soft or shows signs of internal delamination, replace it promptly.

Always replace the hose if you notice a drop in boost pressure or hear a hissing sound from the engine bay. The WG9730530011 is a critical component for maintaining proper air-fuel ratios and protecting the engine from overheating. Using a genuine OEM hose ensures a perfect fit and long service life, safeguarding your turbocharger and engine investment.

Signs That Your WG9730530011 Needs Replacement

Visible cracking or hardening of rubber

Whistling or hissing sound under acceleration

Loss of power or black smoke from exhaust

If you observe any of these signs, inspect the intercooler inlet hose immediately. Replace it with the WG9730530011 if any damage or degradation is found. Never attempt to patch a damaged hose with tape or sealants, as this can lead to sudden failure and engine damage. A genuine OEM hose ensures reliable boost delivery and peace of mind.

Summary: The WG9730530011 Intercooler Inlet Hose is a vital component for maintaining turbocharger efficiency and engine performance in SINOTRUK HOWO trucks. Its advanced silicone construction, precision fit, and durability make it the ideal replacement for worn or failing hoses. Choose genuine quality to ensure your engine receives the full benefit of turbocharged air.

Genuine chassis component | OEM WG9730530011 SINOTRUK HOWO heavy-duty series

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