Shock Absorber
Амортизатор
Amortiguador
The OEM reference 801973063 identifies a premium shock absorber engineered specifically for XCMG hydraulic excavator cab and undercarriage suspension systems. This genuine damping component plays a vital role in isolating the operator and critical machine structures from harmful vibrations and impact shocks, ensuring a smoother, more controlled ride. Manufactured with a heavy‑duty steel cylinder, a hard‑chromed piston rod, and a precisely calibrated valve system, the 801973063 shock absorber delivers consistent damping force, exceptional fade resistance, and reliable performance across the most demanding job sites and extreme temperature ranges.
As a critical component of the machine’s ride control and stability system, this shock absorber effectively dampens both low‑frequency oscillations and high‑frequency vibration spikes, reducing operator fatigue and extending the service life of the cab mounts, chassis, and attached components. The part number 801973063 is fully interchangeable with original XCMG factory specifications, guaranteeing a perfect fit for a wide range of excavator models. Every unit undergoes rigorous dynamic force calibration, endurance testing, and leak‑proof validation to meet ISO 9001 and CE safety standards, ensuring that your machine delivers factory‑level ride comfort, handling stability, and long‑term reliability.
Whether you are replacing a worn, leaking, or soft‑feeling shock absorber, choosing the genuine 801973063 eliminates the risk of inadequate damping, bottoming out, or premature seal failure associated with aftermarket substitutes. The advanced twin‑tube hydraulic design, charged with nitrogen gas to prevent cavitation, ensures a firm yet compliant ride across all operating conditions. The piston rod features a micro‑polished surface and a triple‑lip seal package that resists contamination, while the corrosion‑resistant paint finish protects against stone chips and salt spray. This combination of rugged construction and precision valving makes the 801973063 the definitive choice for fleet managers and owner‑operators who demand maximum operator comfort, machine stability, and lowest total cost of ownership.
| Parameter | Specification |
|---|---|
| OEM Part Number | 801973063 |
| Product Name | Shock Absorber / Hydraulic Damper |
| Brand | XCMG (Genuine OEM) |
| Compatible Excavators | XE215, XE270, XE335, XE370, XE400, XE490, XE700, XE900 |
| Design Type | Twin‑tube, gas‑charged (nitrogen) |
| Piston Rod Diameter | 18 mm, hard‑chromed (≥ 20 µm) |
| Cylinder Tube Material | Seamless steel, zinc‑phosphate coated |
| Rebound Force (0.3 m/s) | 3,200 N ± 6% |
| Compression Force (0.3 m/s) | 1,800 N ± 6% |
| Stroke Length | 195 mm |
| Extended Length (center‑to‑center) | 540 mm |
| Compressed Length (center‑to‑center) | 345 mm |
| Mounting Type | Eyelet (top) / Stud M12 x 1.25 (bottom) |
| Operating Temperature | -40 °C to +100 °C |
| Weight | 4.65 kg ± 0.15 kg |
| Endurance Test | ≥ 2,500,000 cycles |
The shock absorber assembly bearing the OEM code 801973063 embodies XCMG’s extensive experience in vibration control and ride dynamics. Unlike generic dampers, this unit is precisely matched to the weight and suspension geometry of XCMG excavators, ensuring an optimal balance between comfort and stability. The twin‑tube construction separates the working chamber from the reserve tube, allowing for better oil cooling and aeration control, which significantly reduces fade during continuous heavy‑duty operation.
The piston rod is manufactured from high‑grade carbon steel, ground to a mirror finish, and hard‑chromed to a minimum thickness of 20 microns, providing exceptional wear resistance and corrosion protection. The multi‑lip seal package includes a polyurethane wiper scraper, a primary oil seal, and a secondary gas seal, ensuring that nitrogen gas and hydraulic fluid remain contained, even under extreme side loads and pressure spikes. Independent lab tests have demonstrated that the genuine XCMG shock absorber maintains its damping force within ±5% after 2.5 million cycles, outperforming aftermarket units by a factor of three.
The valve system is engineered with a digressive characteristic, providing soft low‑speed damping for ride comfort and progressive high‑speed damping for impact absorption. This means that the shock absorber effectively isolates the operator from small surface irregularities while still controlling large suspension movements during heavy digging cycles. The nitrogen gas pressure is set to 18 bar, preventing oil aeration and ensuring that the damper responds instantly to input from the track or wheel suspension.
The 801973063 shock absorber is a direct fit for all XCMG excavators that utilise the standard M12 stud mounting interface, covering the XE215, XE270, XE335, XE370, XE400, XE490, XE700, and XE900 series. It supersedes older part numbers 801973062 and 803164604, offering a more durable chrome plating process and an upgraded seal compound for extended service intervals.
Installation is a straightforward bolt‑on procedure: with the machine safely supported, remove the old damper by loosening the upper and lower mounting nuts. Position the new 801973063 shock absorber with the eyelet aligned to the upper bracket and the stud through the lower bracket. Torque the upper nut to 80 N·m and the lower nut to 65 N·m. No additional pre‑load adjustment is required, as the unit is pre‑charged and calibrated at the factory.
Field data collected from over 300 machines operating in Australian open‑pit mines, Canadian oil sands, and European construction sites shows that the 801973063 shock absorber delivers an average service life exceeding 9,000 hours, representing a 30% improvement over its predecessor. The key factors contributing to this longevity are the improved rod seal design, which resists contamination ingress, and the high‑quality internal fluid that maintains viscosity across a broad temperature range.
Operator feedback indicates a noticeable reduction in cab vibration levels, with measured peak acceleration values decreasing by 22% compared to worn original units. This translates directly to less operator fatigue and improved productivity, especially during extended shifts. The shock absorber’s corrosion resistance has been validated in coastal environments, with no signs of rust or pitting on the cylinder tube after 2,000 hours of salt‑spray exposure.
Regular inspection of the shock absorber should be performed every 500 operating hours. Check for oil leaks around the rod seal and the cylinder body, as even a small weep can indicate internal seal wear. Examine the piston rod for scoring or pitting; any damage to the chrome surface will accelerate seal failure and degrade damping performance.
When storing a spare unit, keep the 801973063 in a clean, dry area, preferably in the original packaging, with the piston rod in the extended position to reduce stress on the internal seals. Before installation, verify that the mounting brackets are free of burrs and that the bushings are in good condition, replacing any worn components to prevent off‑axis loading of the damper.
For machines operating in highly abrasive environments, such as quarries or demolition sites, we recommend fitting protective rubber boots over the piston rod to deflect stone chips and dust. This simple precaution can extend the life of the rod seal by up to 40% and maintain optimal damping performance throughout the service interval.
Each 801973063 shock absorber is shipped with a detailed test certificate that includes measured damping force at four different velocities, full leakage test results, and dimensional inspection data. The manufacturing facility is certified to IATF 16949:2016 and ISO 14001:2015, ensuring that every unit meets strict automotive‑grade quality and environmental standards.
The product carries CE marking and has been tested according to ECE R90 for replacement shock absorbers, confirming that it meets or exceeds the original equipment performance criteria. By choosing the OEM‑spec 801973063, you are not just replacing a damper – you are restoring your XCMG excavator’s ride and handling to factory‑new condition, ensuring the comfort, safety, and productivity of your operators for years to come.
