ranroswang@hksparkling.com 
+86 138 2341 8469
4472.377.046 Sun Gear Shaft for Hyundai R170W-7 Wheel Excavator Spare Parts
The 4472.377.046 Sun Gear Shaft is a critical component of the planetary reduction system in Hyundai R170W-7 wheel excavators. Manufactured with high-strength alloy steel and advanced heat treatment, it ensures smooth power transmission and long-lasting durability under heavy-duty conditions.
Dear Valued Partners,
Thank you for choosing SPARKLING MACHINERY, your professional supplier for construction machinery spare parts. We are pleased to offer the 4472.377.046 Sun Gear Shaft, a high‑quality replacement part specifically designed for the Hyundai R170W‑7 wheel excavator final drive. This sun gear shaft plays a critical role in the planetary transmission system, directly affecting the mobility, stability, and service life of your equipment.
The SPARKLING MACHINERY NEW 4472.377.046 Sun Gear Shaft Photo:
Key Advantages
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Perfect Compatibility: Precision engineered to match the original Hyundai R170W-7 specifications.
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Hardened Surfaces: Induction hardened teeth for superior wear resistance and fatigue strength.
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Reliable Performance: Reduces noise and vibration within the gear assembly.
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Fast Shipping: Large inventory maintained at our Guangzhou warehouse for immediate dispatch.
Hyundai R170W-7 wheel excavator：
| Component Category | Part Name | Part Number |
| Transmission/Axle | Sun Gear Shaft | 4472.377.046 |
| Transmission/Axle | Planetary Gear | 4472.377.045 |
| Transmission/Axle | Ring Gear | 4472.377.047 |
| Hydraulic System | Main Hydraulic Pump | 31N5-10010 |
| Hydraulic System | Swing Motor Assy | 31N5-15010 |
| Engine Parts | Fuel Injector (Cummins B5.9) | 3943249 |
| Engine Parts | Turbocharger | 3539697 |
| Filters | Hydraulic Return Filter | 31N4-01460 |
| Filters | Engine Oil Filter | 3932217 |
| Seals | Swing Motor Seal Kit | 31N5-15010-SK |
| Electrical | Starter Motor | 3926960 |
| Electrical | Alternator | 3920679 |
Q&A
Q1: Is this Sun Gear Shaft 4472.377.046 compatible with other Hyundai models?
A: This part is specifically designed for the R170W-7 series. Please verify your machine's serial number or original part number before ordering to ensure a 100% fit.
Q2: How do you ensure the quality of the gear teeth?
A: Every shaft undergoes induction hardening and strict precision grinding. This ensures the teeth can withstand high torque and reduces friction within the gearbox.
Q3: What is the typical lead time for this part?
A: We maintain a steady inventory of the 4472.377.046 shaft. Usually, it can be dispatched from our Guangzhou warehouse within 1-3 business days after payment confirmation.
Why Choose HK Sparkling?
As a professional excavator parts supplier, Guangzhou Sparkling provides one-stop solutions for your machinery needs. We understand that downtime costs money, which is why we prioritize quality inspection and rapid logistics for every 4472.377.046 shaft we sell.
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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