ranroswang@hksparkling.com 
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134-03-71112 Radiator for Komatsu D65EX-12, D65PX-12, D65WX-12 Dozers
The 134-03-71112 Radiator is a heavy-duty cooling component specifically engineered for the Komatsu D65-12 series crawler dozers. Designed to manage the high thermal loads of the Komatsu S6D125E engine, this radiator ensures optimal operating temperatures during intensive earthmoving, land clearing, and ripping applications.
Compatible Models: It is specifically designed for the Komatsu D65 series dozers, particularly:
· D65EX-12
· D65PX-12
· D65WX-12
Engine Compatibility: Usually paired with the Komatsu S6D125 series engine.
Thank you for choosing SPARKLING MACHINERY, your reliable supplier of Komatsu cooling parts. The 134-03-71112 radiator is a direct OEM replacement designed for Komatsu D65EX-12 / D65PX-12 / D65WX-12 dozers. Built with heavy-duty copper/aluminum core and durable steel frame, it delivers efficient heat dissipation for S6D125 engines under heavy load. Premium seals and precise manufacturing ensure leak-free performance and long service life.
The SPARKLING MACHINERY NEW 134-03-71112 Radiator Photo:
Why Choose the SPARKLING 134-03-71112 Radiator?
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- High-Efficiency Heat Transfer: Engineered to maintain the S6D125E engine at peak performance temperatures, even under full load.
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- Reinforced Structural Integrity: Heavy-gauge materials used in the side plates and tanks to prevent cracking and leaking in high-vibration environments.
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- Anti-Clogging Fin Design: Optimized fin pitch allows for easier cleaning and better airflow in high-debris job sites.
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- Direct OEM Fitment: Manufactured to Komatsu factory specifications for easy installation and perfect alignment with existing hydraulic and coolant hoses.
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Common Maintenance Parts for Komatsu D65-12 Series
| Part Name | Komatsu Part Number | Application |
| Radiator Assembly | 134-03-71112 | Engine Cooling System |
| Radiator Cap | 175-03-11510 | Pressure Regulation |
| Water Pump | 6151-61-1101 | Coolant Circulation |
| Thermostat | 6150-41-6210 | Temperature Regulation |
| V-Belt (Fan) | 04121-22459 | Cooling Fan Drive |
Q&A Section
Q1: Does this radiator fit the newer D65-15 or D65-16 models?
A: No. The 134-03-71112 is specifically designed for the D65-12 series. Later models use Tier 3 and Tier 4 engines with different cooling requirements and mounting patterns.
Q2: Is this a copper-brass or aluminum core?
A: Depending on the manufacturer, it typically features a high-efficiency copper-brass core for superior repairability or a heavy-duty brazed aluminum core for weight and heat dissipation. Always verify the core material with your supplier.
Q3: What are the signs that my D65-12 radiator needs replacement?
A: Look for external coolant leaks, frequent engine overheating during heavy ripping, or "rotting" fins caused by environmental corrosion or chemical exposure.
About SPARKLING MACHINERY:
- Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.
Get In Touch:
- Replace your failing ECU confidently. Contact SPARKLING for pricing, lead time, and technical support — restore optimal machine control quickly and reliably.
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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