Introduction

OEM No.: AZ9112530333

This is a high-quality OEM-standard expansion tank exclusively designed for SINOTRUK heavy-duty trucks, fully compatible with HOWO series mainstream models. As a core component of the engine cooling system, it undertakes coolant storage, volume compensation and pressure balancing functions. It effectively accommodates the volume expansion of high-temperature coolant during engine operation and supplements coolant shrinkage when the engine cools down, maintaining stable internal pressure of the entire cooling loop. Manufactured strictly in accordance with original factory specifications, it features precise mounting dimensions and complete interchangeability. Widely applicable for SINOTRUK tractors, dump trucks, water tank trucks and engineering vehicles, it is a essential reliable replacement part for global heavy truck aftermarket, especially popular in African high-temperature harsh working environments.

Key Features

✅ 1. Exact OEM Fit, Direct Plug-and-Play Replacement

Produced strictly following the original OEM standard AZ9112530333. The tank capacity, mounting position, pipe interface and caliber fully match the original vehicle assembly. No modification, cutting or pipe adjustment is required during installation, supporting fast and convenient replacement. It perfectly fits compatible SINOTRUK HOWO truck models with zero installation mismatch.

✅ 2. High-Purity Engineering Plastic, Anti-Deformation & Anti-Aging

Adopts thickened high-density industrial plastic raw material with integrated blow molding process. The tank body features uniform wall thickness, strong structural rigidity, not easy to expand, deform or bulge under long-term high-temperature coolant pressure. It owns excellent anti-aging performance, resisting ultraviolet radiation and long-term thermal erosion, ensuring long-term stable service performance.

✅ 3. Precise Pressure Balance & Effective Cooling Protection

Professional internal capacity design perfectly adapts to coolant thermal expansion and cold contraction changes. It stably balances the pressure of the engine cooling system, effectively avoids excessive system pressure, pipe burst or water leakage, and prevents engine overheating, boiling and temperature runaway. It maintains the optimal working temperature of the engine and improves overall operation stability.

✅ 4. Excellent Sealing Performance, Zero Liquid Leakage

Comes with matched high-quality sealing cover, pressure relief valve and rubber gasket. The overall sealing performance is excellent, which can effectively prevent coolant leakage, volatilization and dust ingress. The built-in pressure relief structure automatically releases excess pressure to ensure the safety of the cooling system, avoiding frequent coolant loss and repeated refilling.

✅ 5. Strong Adaptability to Harsh Working Conditions

The expansion tank is specially optimized for heavy-load and high-temperature working scenarios. It can stably adapt to long-distance transportation, mining bumpy roads and tropical high-temperature and dusty environments. It resists vibration impact and temperature alternating load, with low failure rate, fully meeting the rigorous operation requirements of African engineering fleets.

✅ 6. Strict Factory Inspection & High Cost Performance

Every expansion tank passes strict water pressure test, sealing test and high-temperature aging test before delivery to eliminate leakage and deformation problems. With standardized production and stable quality, it supports sample testing and large batch wholesale. Factory direct sales provide competitive prices, suitable for global truck repair shops, spare parts dealers and fleet bulk procurement.

Detail

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Contact with clear photo of engine nameplate or chassis number:

Linda Zhang

Whatsapp:+86 176 6066 8410

EMAIL:sales16@chinatruck.cc