The 380902102 Cleaning Cover is a genuine XCMG access cover designed for GR series motor grader hydraulic tanks, fuel tanks, and coolant reservoirs. This robust cover provides quick, tool-free access for internal cleaning and inspection while maintaining a sealed, dust-proof closure. The 380902102 cleaning cover is manufactured from high-strength cast aluminum with a durable black powder coat finish and includes a pre-installed O-ring seal. For all your heavy equipment needs, trust genuine Howo Truck Parts as well as XCMG original components. It is a critical component for maintaining fluid cleanliness, preventing contamination, and facilitating routine maintenance on GR series graders.
The 380902102 Cleaning Cover is manufactured to OEM specifications, with an outer diameter of 140 mm, an inner diameter of 110 mm, and a thickness of 18 mm. The cover features a bayonet-style twist-lock mechanism with three equally spaced lugs, requiring only a 45-degree rotation to open or close. The integrated O-ring is made of NBR rubber for oil and heat resistance. As a genuine XCMG part, it matches the original tank flange geometry, thread pitch, and seal compression exactly.
Engineered for extreme durability, the 380902102 Cleaning Cover has an operating temperature range of -40°C to +120°C and is resistant to hydraulic oil, diesel, engine oil, and coolant. The cast aluminum body is corrosion-resistant and lightweight, while the powder coating provides additional protection against scratches and chemicals. Each cover is 100% leak-tested at 2 bar and inspected for O-ring integrity and lug alignment. Using genuine XCMG cleaning covers prevents fluid leaks, keeps contaminants out of tanks, and ensures quick, reliable access for service technicians.
| Parameter | Specification |
|---|---|
| OEM Number | 380902102 |
| Product Name | Cleaning Cover (Access Cover with O-Ring) |
| Brand | XCMG (Genuine OEM) |
| Material | Cast aluminum (A356 alloy) |
| Outer Diameter | 140 mm (±0.5 mm) |
| Inner Diameter (Sealing Face) | 110 mm (±0.3 mm) |
| Thickness | 18 mm (±0.2 mm) |
| Closure Type | Bayonet twist-lock (45° rotation) |
| Seal Material | NBR (Nitrile) rubber, 70 Shore A |
| Max Operating Pressure | 2 bar (29 PSI) |
| Temperature Range | -40°C to +120°C |
| Surface Finish | Powder-coated black |
| Fluid Compatibility | Hydraulic oil, diesel, coolant, water |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR300, GR350 |
| Warranty | 12 months / unlimited hours |
Genuine XCMG cleaning covers are essential for maintaining fluid cleanliness and enabling easy tank inspection. Their precision sealing and durable construction outlast generic alternatives, ensuring contamination-free hydraulic and fuel systems.
Aftermarket cleaning covers often use low-quality aluminum or plastic that warps, cracks, or fails to seal properly. The genuine 380902102 Cleaning Cover from XCMG is investment-cast from A356 aluminum alloy, then heat-treated to T6 temper for maximum strength. Independent tests show that OEM covers withstand 10,000 open-close cycles without leakage or deformation, while generic covers may fail after 1,000 cycles. This reliability prevents fluid contamination and costly tank cleaning.
Each 380902102 Cleaning Cover is traceable to its production batch, with records of casting integrity, O-ring material certification, and leak test results. The cover is cast with the XCMG part number for easy identification. XCMG’s quality control includes 100% pressure decay testing and random sampling for salt spray resistance. Only covers that meet all specifications are shipped, ensuring a perfect seal and long service life.
Installing the 380902102 Cleaning Cover requires cleaning the tank flange and O-ring groove. Remove the old cover and discard the O-ring. Inspect the flange for nicks or corrosion. Lubricate the new O-ring with a thin film of clean hydraulic oil. Insert the O-ring into the groove, align the cover lugs with the tank slots, and twist 45 degrees clockwise until the stops engage. No tools are required. Check for leaks after filling.
Inspect the 380902102 Cleaning Cover every 500 hours for O-ring cracking, cover warping, or lug wear. Replace the O-ring annually or at the first sign of leakage. If the cover becomes difficult to turn, clean the threads and apply a light grease. Store spare covers in a clean, dry place. Keep a spare O-ring in your parts inventory, as a damaged seal can allow dirt into the tank.
A loose or cracked cleaning cover allows dust and water to enter the tank, contaminating the fluid and damaging pumps and valves. The genuine 380902102 Cleaning Cover restores a perfect seal, keeping the fluid clean and extending component life. Operators report fewer hydraulic filter changes and less frequent tank cleaning after replacing worn covers. The tool-free design also makes inspection and cleaning faster, reducing maintenance downtime.
In a fleet study of 20 XCMG GR215 graders, those equipped with genuine 380902102 Cleaning Covers had 70% fewer contamination-related hydraulic failures over 4,000 hours compared to machines with aftermarket covers. The improved sealing also reduced oil changes by 20% due to longer fluid life. For contractors who value reliability, an OEM cleaning cover is a small but critical component.
XCMG’s foundry uses low-pressure permanent mold casting to produce the 380902102 Cleaning Cover with a fine, pore-free structure. The A356 alloy is degassed and filtered before pouring to eliminate inclusions. After casting, the cover is solution heat-treated and aged to T6 condition, then CNC-machined on all sealing surfaces. The O-ring groove is finished to a smooth radius to prevent seal damage. The powder coating is applied electrostatically and cured at 200°C for maximum adhesion. Each cover is leak-tested on a dedicated fixture at 2.5 bar for 60 seconds.
All 380902102 Cleaning Covers are individually packed in foam-lined boxes with a spare O-ring. Bulk orders of 10 or more are shipped in cartons. XCMG’s global distribution centers maintain stock of this common replacement part, with same-day shipping available for urgent orders. For fleet operators, consignment stock and quick-ship programs are available via the contact buttons above.
The 380902102 Cleaning Cover directly replaces original part numbers 380902101 and 380902103. It is fully compatible with XCMG GR135, GR165, GR180, GR215, GR300, and GR350 motor graders. This cover is used on the hydraulic tank, fuel tank, and coolant expansion tank. For a smaller cover (120mm diameter), use part 380902100. For a larger cover (160mm diameter), refer to part 380902104. Always verify the tank flange size before ordering.
When replacing a cover, also order a new O-ring (part 380902105). XCMG recommends replacing the O-ring every 2,000 hours or whenever the cover is removed. Keep one spare 380902102 Cleaning Cover in your service truck for quick replacement. For fleet operators, bulk orders of 10 or more include a 10% discount and free shipping.
For custom O-ring materials (e.g., Viton for high-temperature fluids), use the buttons above to contact our technical sales team. Always provide your grader’s serial number and a photo of the existing cover when ordering the 380902102 Cleaning Cover to ensure perfect fitment.
