ranroswang@hksparkling.com 
+86 138 2341 8469
HIGH-QUALITY 21N-03-31491 Cooling Reservoir Tank for KOMATSU Construction Equipment PC490 PC600 PC650 PC700 PC800 PC800SE PC850 Excavator
The HIGH-QUALITY 21N-03-31491 Cooling Reservoir Tank is a premium thermal management component meticulously engineered for KOMATSU Construction Equipment, specifically tailored to meet the cooling system demands of PC490, PC600, PC650, PC700, PC800, PC800SE, and PC850 excavators. As a critical part of the machinery’s engine cooling system, this reservoir tank efficiently stores and circulates coolant, maintaining optimal engine operating temperatures even during prolonged heavy-duty operations.
It is designed to seamlessly integrate with KOMATSU’s cooling system architecture, ensuring consistent thermal regulation that protects the engine from overheating and enhances overall machinery reliability.
Key Features
· Custom-engineered for perfect compatibility with KOMATSU PC490, PC600, PC650, PC700, PC800, PC800SE, PC850 excavators
· Optimized capacity and fluid circulation design for efficient coolant storage and heat dissipation support
· Leak-proof structure with secure sealing to prevent coolant loss and maintain system pressure
· Resistance to high temperatures, corrosion, and chemical degradation from coolant additives
· Strict adherence to KOMATSU OEM specifications for seamless integration and reliable thermal performance
Compatible Models
· KOMATSU Construction Equipment Excavators: PC490, PC600, PC650, PC700, PC800, PC800SE, PC850
Dear Valued Partners,
Thank you for entrusting SPARKLING MACHINERY with your construction equipment component needs—your confidence fuels our dedication to engineering excellence and reliability. Today, we are proud to introduce the HIGH-QUALITY 21N-03-31491 Cooling Reservoir Tank, a product crafted with meticulous attention to detail to complement KOMATSU’s industry-leading excavators.
Whether you’re replacing a worn cooling reservoir or upgrading to safeguard your engine’s performance, this component is designed to exceed your expectations with its robust functionality, perfect fit, and long-lasting durability.
The SPARKLING MACHINERY NEW 21N-03-31491 Cooling Reservoir Tank Photo:
Why Choose the SPARKLING HIGH-QUALITY 21N-03-31491 Cooling Reservoir Tank?
- Direct-fit compatibility: Precisely manufactured to match the exact dimensions, mounting points, and connection interfaces of KOMATSU PC490, PC600, PC650, PC700, PC800, PC800SE, PC850 excavators, ensuring hassle-free installation without modifications, drilling, or adapter parts.
- Precision control: Advanced structural design and dimensional accuracy guarantee optimal coolant flow regulation, supporting the engine’s thermal management system to maintain stable operating temperatures and prevent overheating-related issues.
- Rigorous quality: Undergoes comprehensive quality testing, including pressure resistance trials, leak detection, high-temperature endurance tests, and corrosion resistance validation, to meet KOMATSU OEM standards and ensure reliable performance in extreme construction scenarios.
- Professional support: Our team of KOMATSU-specialized technical experts provides end-to-end support—from pre-purchase compatibility consultation to post-installation guidance on coolant filling and system maintenance—ensuring a seamless experience for every customer.
- Cost-effective reliability: Offers exceptional durability and performance at a competitive price point, minimizing downtime caused by cooling system failures, reducing maintenance costs, and maximizing the service life and value of your KOMATSU excavator investment.
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