Excavators are the workhorses of the construction and mining industries, relied upon for their power and precision in demanding environments. At the heart of their hydraulic systems and vital components are various seals, rings, and kits that prevent leaks, protect against contaminants, and ensure optimal performance. Without these critical parts, even the most robust machinery would fail. Understanding the specific OEM parts required for different models is essential for proper maintenance and longevity.
The integrity of an excavator's sealing components directly impacts its efficiency and safety. A failing oil seal can lead to fluid loss and potential component damage, while a worn wiper ring can allow dirt and debris to enter the hydraulic system, causing significant wear and tear. Using genuine OEM parts guarantees a precise fit and material quality, which is crucial for withstanding the high pressures, temperatures, and harsh conditions that excavators operate in daily.
To assist our clients and partners in identifying the correct sealing parts for a wide range of excavators, we have compiled a detailed list of key OEM parts. This guide covers a variety of components, from individual seals and rings to complete seal kits for specific excavator models.

| No. | Part Number | Part Description | Fits Excavator Model |
|---|---|---|---|
| 1 | 401106-00179 | SEAL, OIL | TXC225LC-2 |
| 2 | 0815901 | RING; WIPER | ZAXIS180W |
| 3 | FXB00017284 | Seal Kit | 4TNV98C |
| 4 | VOE14640698 | Seal | EC350D |
| 5 | 4040813 | Back-Up Ring | EX1200-5D |
| 6 | VOE14716904 | Sealing kit | EC350E |
| 7 | VOE14588970 | Seal | EC700C |
| 8 | H3754800900 | SEAL | EX1200-5C |
| 9 | 1119710 | Seal | 190GW |
| 10 | K9005301 | SEAL KIT; PARKING BRAKE | DX30Z |
| 11 | 0143205 | RING; STOPPER | UH07-5 |
| 12 | 0939425 | RING | EX8000-6 |
| 13 | 0165906 | RING; RETAINING | UH171 |
| 14 | 0251311 | Seal | 495D |
| 15 | VOE11701194 | Sealing ring | EC460 |
Choosing the correct sealing parts is more than just a matter of finding a component that fits. It's about ensuring the ongoing reliability and performance of your heavy machinery. For example, a seal kit for a 4TNV98C engine must meet precise specifications to handle the internal pressures and temperatures, while a parking brake seal kit for a DX30Z crawler excavator must withstand mechanical stresses to ensure safe operation.
At Tonkee Machinery Co., Ltd., we specialize in providing high-quality OEM and aftermarket parts that meet or exceed industry standards. Our commitment to quality ensures that every seal, ring, or kit we supply will perform reliably, helping to minimize downtime and maximize your excavator's operational life. We believe that informed choices lead to better outcomes, and we are dedicated to being a trusted resource for all your excavator parts needs.
Regular inspection and timely replacement of these essential sealing components are key to a proactive maintenance strategy. By using the right parts, you protect your investment and maintain the high performance expected from your machinery.
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