81E4-20080 / 81N5-50010GG Wheel Assembly (10.00-20) for Hyundai R170W-7, R140W-9
Standard Tire Specification: Designed to fit 10.00-20 industrial-grade heavy-duty excavator tires (typically mounted in a dual-wheel configuration for enhanced stability on muddy or uneven terrain).
Official Model Compatibility: Broadly installed across Hyundai’s 7-Series, 9-Series, and modern HW-Series wheeled excavators:
· 7-Series: R170W-7, R170W-7A, R200W-7, R200W-7A.
· 9/9S Series: R140W-9S, R140W-9, R170W-9S, R210W-9S.
· HW Series: HW140, HW160, HW180, HW210.
Physical Weight: The structural steel wheel rim assembly has a net weight of approximately 45.4 kg (100 lbs).
Thank you for choosing SPARKLING MACHINERY, your trusted supplier of Hyundai excavator parts.
The SPARKLING MACHINERY NEW 81E4-20080/81N5-50010GG WHEEL ASSY 1000-20 Photo:



Why Choose the SPARKLING 81E4-20080/81N5-50010GG WHEEL ASSY 1000-20?
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- Heavy-Duty Construction: Thicker steel gauge compared to standard truck rims to handle the 15–18 ton operating weights of Hyundai excavators.
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- Precision Bolt Pattern: Machined to exact Hyundai specifications to ensure a hub-centric fit, reducing vibration and wear on the axle studs.
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- Corrosion Protection: Typically finished with a high-durability industrial coating to resist rust from salt, mud, and construction site chemicals.
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- Standard Tire Compatibility: Optimized for 10.00-20 tube-type or solid tires, providing the necessary bead seat strength for high-pressure applications.
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Compatible Hyundai Wheel Excavators
This wheel assembly is the standard fitment for the following Robex series:
| Machine Model | Generation | Tire Specification |
| R140W-9 / 9S | Dash 9 Series | 10.00-20 Dual |
| R170W-7 | Dash 7 Series | 10.00-20 Dual |
| R170W-7A | Dash 7A Series | 10.00-20 Dual |
| R180W-9S | Dash 9S Series | 10.00-20 Dual |
Q&A Section
Q1: Is this rim for a single or dual tire setup?
A: On the R170W and R140W, these are typically used in a dual configuration (two wheels per side per axle). If you are replacing one, ensure the offset matches your existing wheels to maintain proper spacing between the dual tires.
Q2: Does the assembly include the lock rings and flange?
A: Typically, 81E4-20080 refers to the main rim base. Depending on the supplier, the multi-piece lock rings and side flanges may be sold separately or as a complete "Wheel Assy." Always verify the components before purchase.
Q3: What is the recommended torque for the wheel nuts?
A: For Hyundai excavators in this weight class, wheel nut torque is critical. You should consult your specific R170W or R140W Shop Manual, but standard values for these heavy-duty studs usually fall between 450–600 Nm.
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.

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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.
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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.





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