- Dozer Undercarriage Parts
- Excavator Undercarriage Parts
- Mini Excavator Undercarriage Parts
- Skid Steer Undercarriage Parts
- Crawler Crane Undercarriage Parts
- Morooka Undercarriage Parts
- Crawler Loader Undercarriage Parts
- Sugar cane Harvester Undercarriage Parts
- Agricultural Tractor Undercarriage Parts
- Rubber Tracks
- Bolts&Nuts
- Ground Engaging Tools
- Cutting edges/Blades/End bits
- Hydraulic Cylinders
- Bucket Linkages
- Swing Bearing/Slewing Bearings
- Hydraulic Parts
- Attachments
- Other parts
- Tools
Excavator Track Chains Link Assy Km3807/51, PC220LC-3, Ec250dl, R250LC
product detail
Product Description

| Material | 40mn2, 35mnb |
| Part No. | KM3807/51 |
| Finish | Smooth |
| Colors | Black, yellow, or customized |
| Technology | Forging |
| Surface Hardness | HRC55-60, deepth: 8mm-12mm |
| Warranty time | 12 Months |
| Delivery Time | 25-30 days |

Embark on an extraordinary journey to excellence with our premium bulldozer undercarriage spare parts. These components seamlessly merge robust sophistication with enduring strength and are crafted with masterful precision. Our unwavering commitment to top-tier quality and reliability guarantees that your heavy machinery functions at peak efficiency, propelling your projects to unprecedented heights of success.
Important Notice: All manufacturer names and symbols are used solely for identification purposes. This declaration does not imply any affiliation or authenticity with these manufacturers, as we are committed to upholding transparency and integrity in our communications.

Established in 2013 in the vibrant city of Quanzhou, China, Quanzhou Zhongkai Machinery (zkmparts/zkucparts) stands as an industry leader, renowned for superior undercarriage components. Our extensive product range includes track rollers, track chains, idlers, top rollers, and sprockets/segment rims. We proudly serve a wide array of machinery, from agile mini excavators to colossal mining machines, supporting nearly all major brands worldwide.



Why Choose Us?
1. Experience our unwavering 100% quality guarantee, designed meticulously for your complete confidence and satisfaction. We accommodate small and sample orders with exceptional flexibility and offer competitive bulk pricing, perfectly aligning with your financial objectives.
2. Leverage our deep expertise in excavators and bulldozers. Our extensive inventory is carefully curated to meet a diverse array of needs, ensuring your equipment runs smoothly and efficiently.
3. Our commitment to producing superior quality products is supported by a comprehensive warranty, delivering unparalleled peace of mind and security with every purchase.
4. Enjoy our exceptional customer service, featuring expert advice and steadfast support throughout every step of your purchasing journey, ensuring a seamless and satisfying experience.
5. Take advantage of our highly competitive pricing, offering extraordinary value that simplifies your purchasing process with absolute certainty.
6. Our vast inventory guarantees rapid and effective solutions to meet your immediate needs, ensuring smooth operations and optimum performance for your machinery.
How could I ensure the part would fit my machinery?
Pls send us the correct model number/machine serial number/ any numbers on the parts themselves. Or measure the parts give us dimensions or drawings.
What is the payment term?
Generally, 30% deposit T/T in advance, and the balance before the shipment.
What is the lead time?
FOB Xiamen or any Chinese port: 25-30 days. If there are any parts in stock, our delivery time is only 0-7 days.
What kind of package do you offer?
Normally we use the export standard wood pallets. If any special requirements, we can discuss them.
What about Quality Control?
We have a perfect system for checking the quality of our products. Our team checks the products and the way they are made very carefully. They do this at every stage of the production process. This makes sure that the products are safe when they are put in the container.




