The 803192117 Plug is a genuine XCMG hydraulic sealing plug specifically engineered for GR series motor graders. This high-precision component provides a reliable, leak-free seal for unused hydraulic ports on valve bodies, manifolds, and cylinder housings. The 803192117 plug is forged from high-grade carbon steel and finished with a durable zinc-nickel coating, delivering exceptional corrosion resistance and mechanical strength. Designed to withstand the harshest working environments, this original XCMG part guarantees perfect compatibility and long-term durability.
Manufactured to strict ISO 6149-1 standards, the 803192117 Plug features an M18 × 1.5 metric thread and a 27 mm hex head design. It incorporates a pre-installed NBR O-ring that ensures a positive seal even under extreme pressure spikes. The zinc-nickel coating exceeds 500 hours of salt spray resistance, making it ideal for wet, muddy, or chemically aggressive environments. By choosing genuine XCMG part 803192117, you eliminate compatibility risks and achieve factory-grade sealing performance.
Engineered for extreme temperature ranges from -40°C to +125°C, the 803192117 Plug works flawlessly with mineral oils, synthetic hydraulic fluids, and biodegradable oils. Its hardened steel body resists thread deformation and galling, even after multiple installations. Each plug undergoes 100% thread gauge inspection, O-ring integrity testing, and coating thickness verification. Using authentic XCMG plugs prevents oil seepage, contamination ingress, and unexpected pressure drops, ensuring your grader’s hydraulic system remains in peak condition.
| Parameter | Specification |
|---|---|
| OEM Number | 803192117 |
| Product Name | Hydraulic Sealing Plug |
| Brand | XCMG (Genuine OEM) |
| Material | High-strength carbon steel (C45E + heat treat) |
| Thread Size | M18 × 1.5 (ISO 6149-1) |
| Hex Head Size | 27 mm / 1.06 in |
| Seal Type | Captive O-ring, NBR 70 Shore A (Viton optional) |
| Max Working Pressure | 420 bar (6090 PSI) |
| Temperature Range | -40°C to +125°C |
| Surface Coating | Zinc-nickel (500h salt spray, ASTM B117) |
| Recommended Torque | 55 Nm (40.5 ft-lbs) |
| Fluid Compatibility | Mineral oil, synthetic esters, diesel, coolant |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR300, GR350 |
| Warranty | 12 months / unlimited hours |
Genuine XCMG 803192117 plugs are critical for maintaining hydraulic system integrity. Their superior sealing performance and robust materials outlast generic alternatives, reducing downtime and fluid loss.
Aftermarket plugs often use lower-grade materials and lack proper heat treatment, leading to thread galling, O-ring extrusion, or early corrosion. The genuine 803192117 Plug is manufactured under XCMG’s strict quality system, with each batch traceable to raw material certificates and production records. Independent fatigue tests demonstrate that OEM plugs maintain leak-tightness for over 12,000 operating hours, while generic copies may fail within 1,500 hours due to seal degradation.
Every 803192117 Plug is 100% inspected using digital thread gauges, optical comparators, and automated O-ring seating tests. The plug head is laser-engraved with the XCMG part number for easy field identification. XCMG’s coating process includes pre-treatment, zinc-nickel plating, and a trivalent chromium seal, delivering consistent protection even after repeated wrenching.
Before installing the 803192117 Plug, thoroughly clean the port threads and the sealing face using a lint-free cloth. Lubricate the O-ring with clean hydraulic oil to prevent rolling or pinching. Thread the plug in by hand until the O-ring contacts the port face, then torque to 55 Nm using a calibrated wrench. Do not exceed 65 Nm to avoid O-ring damage.
Inspect the 803192117 Plug every 500 hours for signs of weeping, corrosion, or O-ring deterioration. If any leakage is observed, replace the O-ring (service kit 803192118) or the entire plug. When removing a plug, clean the port and check for thread damage. Store spare plugs in a clean, dry environment away from direct sunlight.
A controlled fleet study involving 25 XCMG GR215 graders showed that machines equipped with genuine 803192117 Plugs experienced 95% fewer hydraulic port leaks over 5,000 operating hours compared to those using non-OEM plugs. The improved sealing also reduced average monthly hydraulic oil consumption by 1.8 liters per machine, lowering operational costs and environmental impact.
In extreme cold tests at -40°C, the 803192117 Plug maintained a perfect seal without O-ring hardening or thread seizure. In high-humidity coastal applications, the zinc-nickel coating prevented any red rust after 24 months of continuous exposure. These results confirm that OEM plugs deliver unmatched reliability for demanding grading operations.
XCMG’s advanced machining center produces the 803192117 Plug using CNC turning and thread rolling for superior surface finish and dimensional accuracy. The O-ring groove is machined to a tolerance of ±0.03 mm, ensuring perfect O-ring compression. After plating, each plug is subjected to a 100% torque retention test and random sampling for salt spray resistance.
All 803192117 Plugs are individually sealed in anti-static bags with a desiccant pouch. Bulk orders are packed in heavy-duty plastic cases with full lot traceability. XCMG’s global logistics network ensures rapid delivery, with same-day dispatch available for urgent requirements. For large fleet orders, consignment stock programs can be arranged through the Inquiry button above.
The 803192117 Plug is a direct replacement for original part numbers 803192116 and 803192118. It is fully compatible with all XCMG GR135, GR165, GR180, GR215, GR300, and GR350 motor graders. This plug is commonly used on hydraulic valve blocks, return line ports, and test points. For smaller M14 ports, use part 803192115; for larger M22 ports, use part 803192119.
When ordering, please provide your grader’s serial number and a clear photo of the existing plug to ensure correct fitment. XCMG also offers Viton O-ring versions for high-temperature applications (up to +200°C) – request part 803192117-VIT. For urgent requirements, use the Send Email or Inquiry Now buttons above.
Always keep at least two spare 803192117 Plugs in your service truck to avoid downtime. For fleet operators, volume discounts and scheduled just-in-time deliveries are available. Contact our parts specialists through the buttons above for custom stocking plans.
