Reliable engine cooling is the heart of machine longevity. If you are searching for a high-quality 11N7-40021 or 11N740021 water tank for your R265-9 Hyundai Excavator, you have found the right source. We specialize in providing heavy-duty cooling solutions that meet or exceed original equipment standards.
| Model NO. | R265-9 (Hyundai Series) | Part Number | 11N7-40021 / 11N740021 |
| Product Name | Radiator / Water Tank | Type | Heavy-Duty Cooling System |
| Condition | Brand New, OEM Standard Replacement | MOQ | 1 Piece |
| Stock Status | In Stock / Fast Dispatch | Packaging | Industrial Export Packing |
| Application | Engine rebuild, overhaul, maintenance, and cooling system repair | ||
| Payment Terms | T/T, Western Union, MoneyGram | ||
| Delivery Methods | Express: DHL, Fedex, EMS, UPS or by Air/Sea | ||
Understanding the difference between a standard replacement and a low-quality alternative is vital for avoiding downtime.
| Core Purchase Points | Our OEM-Standard Radiator | Typical Aftermarket Radiator |
|---|---|---|
| 1. Material Durability | High-grade reinforced aluminum alloy | Recycled or thin-walled aluminum |
| 2. Heat Dissipation | Optimized fin density for R265-9 airflow | Generic fin spacing, prone to overheating |
| 3. Pressure Resistance | Tested up to 2.0 bar without leakage | Weak seams, prone to bursting under load |
| 4. Fitting Accuracy | 100% matched to 11N7-40021 mounting points | Requires modification or bracket bending |
| 5. Anti-Corrosion | Internal anti-corrosive coating applied | No internal protection, short lifespan |
| 6. Warranty Support | Full professional after-sales guarantee | No clear warranty or technical support |
A failing radiator does more than just leak water; it threatens your engine's cylinder head and pistons. Our team helps operators:
Identify potential risks during maintenance such as coolant contamination or scale buildup.
Recommend suitable replacement parts if needed based on your specific serial number.
Support both inspection advice and parts supply to ensure your R265-9 stays on the job site.
Send Your Part Number to get a professional evaluation today.
Overheating in the R265-9 is often caused by a clogged radiator core or external debris blocking airflow. If the fins are damaged or the 11N7-40021 radiator shows signs of internal scale, the cooling efficiency drops significantly. We recommend a full inspection and replacing with an OEM-standard water tank to restore thermal balance.
While there is no fixed timeline, if you notice persistent coolant loss or "milky" oil, the radiator structure may be compromised. Replacing the 11N740021 before a total failure prevents catastrophic engine damage.
Answer: Our units feature an OEM-standard tri-metal structure and are trusted by repair shops & equipment fleets globally. We focus on durability that handles the vibration and thermal shock of mining and construction environments.
Complete the form below and our technical sales team will contact you within 2 hours with pricing and shipping options.
We are a leading provider of high-performance engine assemblies and components. Our expertise covers top brands including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. From complete engine overhauls to specific part replacements, we ensure your machinery operates at peak performance.
Our main products include: Liner, Piston, Piston Ring, Main Bearing, Con Rod Bearing, Thrust Washer, Overhaul Gasket Kit, Fuel Injection Pump, Injector, Crankshaft, Turbocharger, Water Pump, Oil Pump, Cylinder Block, Cylinder Head, and Connecting Rod.
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