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John M., Procurement ManagerWe have been sourcing excavator radiators from this supplier for over three years. The product quality is outstanding — durable, efficient, and perfectly compatible with our machinery. Delivery is always on time, and their team responds quickly to our technical questions.
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Ali R.The radiator we purchased for our Komatsu excavators performed flawlessly even in high-temperature environments. Excellent craftsmanship and competitive pricing. We appreciate their professional after-sales service.
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Maria S., Operations DirectorHigh heat dissipation efficiency, precise fitting, and robust packaging — everything exceeded our expectations. This supplier truly understands the demands of heavy equipment parts in the field.
CAT312B Water Cooler Radiator 118-9948 Fits For CAT E312B E311B Excavator

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xProduct Details
Name | E312B E311B | Part Number | 118-9948 |
---|---|---|---|
Material | Aluminum-plastic | OEM | Avaliable(One Piece Or More) |
Condition | New | Application | Excavator |
Product Video | Provided | Printing | Support Customized Logo Printing |
Highlight | E311B excavator water tank radiator,CAT312B water cooler radiator,CAT E312B aluminum radiator |
Product Description
TMY CAT312B Water Tank Radiator 118-9948
High-performance radiator designed for CAT E312B and E311B excavators, offering superior cooling efficiency and durability.
Product Specifications
Compatible Models | E312B, E311B |
Part Number | 118-9948 |
Material | Aluminum-plastic |
OEM Availability | Available (One piece or more) |
Condition | New |
Customization | Supports customized logo printing |
Key Features
- 100% leak tested for quality assurance
- High-performance aluminum construction
- Direct OEM replacement part
- Precision engineered for optimal cooling
Compatible Excavator Models
KOMATSU
PC18 PC20 PC30-8 PC35 PC35R-8 PC40 PC45 PC50 PC50-7 PC55-7 PC56 PC60-5 PC60-6 PC60-7(4D95) PC60-7(4D102) PC100-3 PC120-5 PC120-6 PC200-1 PC200-2 PC400-5 PC200-3 PC200-5 PC200-6(6D102) PC200-6(6D95) PC200-7 PC200-8 PC220-1 PC220-2 PC220-6 PC220-7 PC220-8 PC240-8 PC270-8 PC300-7 PC300-8 PC360-7 PC400-6 PC400-8 PC450-7
CATERPILLAR
E70B E120B E200B E301.5 E302 E303 E303C E305 E307C E307D E308B E308C E308D E312B E312C E312D E313 E313D E315D E318D2 E318D2L E320A E320B E330B E320C E320D E320GC E324D E325C E325D E330A E330C E330D E336GC E345C E345D E349E E349D2 E349D2L E374F E390F E740B E950L E950H E966L E966H E980H
HITACHI
EX30 EX35 ZX30U-2 EX60-1 EX60-5 ZX48 ZX50U/55 ZX60/70 EX70 ZX70-3 ZX75U EX120-5 EX120-6 ZX120-3 ZX120-6 EX200-1 EX200-2 EX200-5 ZX200-3 ZX200-6 EX220-2 ZX200/230 ZX240-3 ZX250-3 EX300-1 ZX330-3 EX350-5/300-5 ZX360-5A EX400-3 ZAX450-3/470-3 EX450-6 ZX240-5A ZX200-5G ZX470-5/490-5 ZX550-8 ZX609L ZX650-3/670-3
KOBELCO
SK15 SK30 SK60C SK60-3 SK60-8 SK75-8 SK120-3/120-5 SK130-8/140-8 SK200-1 SK350-8 SK200-3 SK200-5 SK200-6/200-6E SK200-8/210-8 SK200-5.5/200-5/200-6 SK250-8 SK260-8 SK350-10 SK360 SK460-8
Product Images



Product Advantages
- Top quality products with competitive pricing
- 1-month warranty included
- 100% tested before shipping for guaranteed performance
- Reliable on-time delivery
- 11+ years of manufacturing experience
- Professional engineering and production team
- 24/7 customer support from our sales team
Frequently Asked Questions
Q: How can I get the price?
A: Click "Chat now" to consult about pricing. For urgent inquiries, you may call or email for immediate response.
Q: What are your payment terms?
A: We accept T/T and Western Union payments.
Q: What are your delivery options?
A: We offer sea, air, and express shipping based on your requirements.
Q: What is your typical delivery time?
A: Most orders ship within 24 hours after receiving payment, with exact timing depending on order specifics.
Q: Do you test products before shipping?
A: Yes, we perform 100% quality testing before delivery.
Q: What if I don't know the part number?
A: Please provide dimensions and photos of your existing part for identification.
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