ranroswang@hksparkling.com 
+86 138 2341 8469
1BQ8-40030 / 11Q8-41320 Engine Cooling Radiator for Hyundai R300-9 Excavator
The 1BQ8-40030 / 11Q8-41320 Engine Radiator Assembly is a high-performance thermal exchange component engineered specifically for the Hyundai Robex R300LC-9 (R300-9) crawler excavator.
Equipment & Model Compatibility
This radiator is optimized as a direct factory replacement or premium aftermarket fitment for Hyundai's 30-ton class heavy extraction excavators:
· R300 Series: R300LC-9, R300LC-9S, R300LC-9SH
· R305 Series: R305LC-9, R305-9, R305-9t
· R320 Series: R320-9, R320LC-9S
Thank you for choosing SPARKLING MACHINERY.
The 1BQ8-40030 / 11Q8-41320 radiator is built to withstand the rigorous demands of 30-ton class demolition, earthmoving, and quarrying operations. Constructed from high-grade aluminum alloys, the core features optimized tube and fin spacing that maximizes heat rejection while minimizing resistance to cooling airflow. Upgrading a clogged, scaling, or leaking radiator restores factory-spec cooling efficiency, protects engine cylinder liners, and ensures steady horsepower output during hot-weather operation.
The SPARKLING MACHINERY NEW 1BQ8-40030/11Q8-41320 R300-9 RADIATOR Photo:
Why choose the SPARKLING NEW 1BQ8-40030/11Q8-41320 R300-9 Radiator?
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- Brazed Aluminum Core Construction: Provides superior heat transfer characteristics and higher pressure resistance compared to traditional copper-brass alternatives.
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- Heavy-Duty Reinforced Side Tanks: Engineered with thick-walled end tanks that are precision TIG-welded to eliminate stress fractures caused by constant thermal expansion cycles.
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- Vibration-Isolated Mounting Brackets: Features heavy-duty structural brackets positioned exactly to factory dimensions to absorb severe undercarriage vibrations and shocks.
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- Direct Drop-In OEM Alignment: Machined with the exact inlet/outlet pipe configurations, shroud mountings, and overflow lines specified by Hyundai part numbers 1BQ8-40030 and 11Q8-41320.
FAQ
What are the main warning signs that an excavator engine radiator is failing?
Common indicators include engine coolant temperature spikes flashing on the digital dashboard, visible green or red coolant puddles dripping beneath the engine compartment, white crusty mineral scale deposits blanketing the radiator core face, or a bloated look along the side tanks indicating the system has over-pressurized.
Can I clean out a radiator core if the engine suffered an internal oil cooler failure?
If an internal oil cooler fails and pumps thick engine oil into the radiator, a standard water flush is rarely enough. Engine oil coats the inside of the aluminum cooling tubes, creating an insulating layer that blocks heat transfer. While specialized chemical degreasing flushes can sometimes clear the oil, installing a brand new 1BQ8-40030 radiator is often the safest choice to ensure the engine doesn't experience chronic hot spots later.
What is the recommended method for cleaning external dust out of the new radiator fins?
Blow out the core using low-pressure compressed air or rinse it with a gentle water stream from the inside out (opposite of the normal engine fan drawing direction). Avoid getting too close with a commercial high-pressure power washer, as the intense point pressure can easily bend the soft aluminum cooling fins flat, permanently blocking airflow and leading to overheating.
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📦 Packing
1. Packaging methods: Carton box + Wooden case/Pallet + Anti-rust treatment
2. Export-standard packaging to ensure safety during transportation
3. Custom packaging available upon request
4. Dimensions and weight can be provided for freight calculation
🚚 Shipping
1. Available shipping methods: Sea freight, Air freight, Express delivery (DHL, UPS, FedEx, etc.)
2. LCL (Less than Container Load) and FCL (Full Container Load) options are supported
3. For Russian clients, we can introduce the forwarder agent to you
4. Delivery time: Ships within 1-3 working days after payment (for items in stock)
💳 Payment
1. Accepted methods: T/T, Bank Transfer, PayPal, Alipay, WeChat Pay, Western Union
2. Deposit + balance payment available for large or custom orders
3. Flexible payment options—feel free to contact us for details
📌 Frequently Asked Questions (FAQs)
Q: Which excavator models is this part compatible with?
A: This product is compatible with major brands such as CAT, KOMATSU, HITACHI, and more. Custom specifications are also available.
Q: How can I make sure I’m selecting the correct part?
A: You can send us a photo of the old part, part number, or your excavator model, and we will help you confirm the right match.
Q: Is there a warranty for this product?
A: Yes, we offer a 6-month quality guarantee under normal use.
Get a free quote
We are committed to producing the highest quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.
Contact us
Email: ranroswang@hksparkling.com
Wechat: +86 136 0901 0879
Skype: foreverlucia1
WhatsApp: +86 136 0901 0879
Address: No. 514-515, Hulin Road, Tianhe District, Guangzhou, China.
Sparkling Machinery Co.,Ltd
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Whatsapp: +8613609010879