GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED
GZ Yuexiang Engineering Machinery Co., Ltd Customer first, quality first, and honest cooperation.
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Excavator spare parts R305-7 31N8-40011 XJCK-00123 XJCK-00042 travel motor assy for Hyundai hyundai motor
The excavator undercarriage assembly is a critical component of the machine’s chassis system, responsible for supporting the entire weight and providing mobility. It typically consists of tracks, sprockets, idlers, rollers (carrier and track), and travel motors. The design of the undercarriage directly impacts the excavator’s stability, traction, and operational efficiency. A high-quality undercarriage ensures smooth movement across rough terrain, minimizes slippage and wear, and offers excellent durability for demanding applications in mining, construction, and agriculture.
| Appliion | Excavator |
| Part name | Final Drive Assy |
| Model | 31N8-40011 XJCK-00123 XJCK-00042 |
| Model | R305-7 |
| Payment term | T/T, Western union, PayPal |
| Delivery | 3 days after the payment received |
| Shipment | by sea, by air, by express or as required |
| # | Part No | Part Name | Qty. | Price request |
|---|---|---|---|---|
| * | 31N8-40011 | TRACK MOTOR | 1 | |
| *-1 | XJCK-00123 | TRAVEL MOTOR UNIT | 1 | |
| 27 | XJCK-00045 | CASING | 1 | |
| 28 | XJCK-00122 | COVER-REAR | 1 | |
| 29 | XJCK-00121 | BLOCK-CYLINDER | 1 | |
| 30 | XJCK-00042 | RETAINER-SHOE | 1 | |
| 31 | XJCK-00041 | PLATE-FRICTION | 4 | |
| 32 | XJCK-00040 | PISTON-BRAKE | 1 | |
| 33 | XJCK-00039 | PLATE-SEPARATING | 5 | |
| 34 | XJCK-00120 | PLATE-VALVE | 1 | |
| 35 | XJCK-00037 | SHAFT | 1 | |
| 36 | XJCK-00036 | COUPLING | 1 | |
| N37 | XJCK-00035 | PLATE-SWASH | 1 | |
| N38 | XJCK-00034 | PIVOT | 2 | |
| 39 | XJCK-00077 | HOLDER-SPRING | 1 | |
| 40 | XJCK-00119 | PISTON ASSY | 9 | |
| 41 | XJCK-00031 | D-RING | 1 | |
| 42 | XJCK-00030 | D-RING | 1 | |
| 43 | XJCK-00029 | VALVE-CHECK | 3 | |
| 44 | XJCK-00028 | RING-RETAINER | 1 | |
| 45 | XJCK-00027 | RING-RETAINER | 1 | |
| N46 | XJCK-00026 | SHIM | 1 | |
| 47 | XJCK-00025 | PISTON | 1 | |
| 48 | XJCK-00024 | BALL | 1 | |
| 49 | XJCK-00023 | JOINT-BALL | 1 | |
| 50 | XJCK-00022 | SEAL-PISTON | 1 | |
| 51 | XJCK-00021 | RESTRICTOR | 1 | |
| 52 | XJCK-00020 | RESTRICTOR | 1 | |
| 53 | XJCK-00019 | SEAL-OIL | 1 | |
| 54 | XJCK-00018 | SPRING-CHECK VLV | 3 | |
| 55 | XJCK-00017 | SPRING-CYLINDER | 9 | |
| 56 | XJCK-00016 | SPRING-BRAKE | 12 | |
| 57 | XJCK-00015 | BEARING | 1 | |
| 58 | XJCK-00014 | BEARING | 1 | |
| 59 | XJCK-00013 | SCREW-CAP | 10 | |
| 60 | XJCK-00012 | PIN-PARALLEL | 1 | |
| 61 | XJCK-00011 | O-RING | 3 | |
| 62 | XJCK-00010 | O-RING | 2 | |
| 63 | XJCK-00009 | O-RING | 3 | |
| 64 | XJCK-00008 | O-RING | 1 | |
| 65 | XJCK-00007 | O-RING | 1 | |
| 66 | XJCK-00137 | RELIEF VALVE | 2 | |
| 67 | XJCK-00005 | PILOT VALVE | 1 | |
| 68 | XJCK-00138 | BRAKE VALVE | 1 | |
| 69 | XJCK-00003 | PLUG | 2 | |
| 70 | XJCK-00001 | O-RING | 2 | |
| 71 | XJCK-00076 | PLUG-EXPANDER | 1 | |
| 72 | XJCK-00075 | PLUG | 4 | |
| 73 | XJCK-00074 | PLUG | 1 | |
| *-2 | @ | FUEL INJECTION PIPE & NOZZLE SEE 4130 | 1 |
1. If I only know the excavator model , but can not offer parts No., what should I do ?
If possible, you can send us pictures of old products, nameplate or the size for reference.
2. What is the warranty of the parts after I purchased ?
The warranty is 6/12 Months based on the item details .
3. How can I pay the order ?
We can receive payment through T/T , Western Union, Paypal(for small amount) , trade assurance .
4. When will get the items after I place order?
Once your payment is confirmed, we will arrange the goods within 24 hours; if not in stock , we will inform you before placing the order .
5. How can I do if there is something wrong with the items ?
First of all , I have confidence in the quality of our products , if you really found something wrong , pls provide pictures for us and we will check . After it is confirmed, pls return to us , we will offer the correct item.
6. What is your main products ?
We are specialized in the excavator spare parts , such as travel motor gearbox/ass’y/parts , swing gearbox/ass’y/motor/parts , hydraulic pump assy/parts and gear parts . If you need other excavator parts , we also can supply as your requirements
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