OEM 804410402 The XCMG Seal Plate 804410402 is a genuine OEM seal plate that closes a machined joint and holds a gasket or O-ring in place on XCMG hydraulic excavators.
Stamped with part number 804410402, this factory plate gives technicians a flat, correctly shaped retainer that keeps the sealing element seated in its groove.
It is stamped or machined from steel plate, deburred on both faces, then coated to resist rust, oil and site chemicals.
Exact outline, plate thickness and bolt hole spacing match the XCMG drawing, so the plate seats flat and the fasteners start by hand.
A flat, rigid plate compresses the seal evenly around the joint, which prevents weeping at the edges and keeps oil inside the assembly.
Every plate is gauged for dimensions, flatness and hole position before packing, so the part received matches the factory specification exactly.
The 804410402 seal plate is stamped to the XCMG drawing, so the outline and bolt holes match the joint face and the fasteners start by hand.
Correct plate thickness lets the fasteners compress the seal to the design value, so the joint holds without over-squeezing the gasket.
A flat, rigid plate spreads clamping load across the full seal face, which prevents the cover from bowing and breaking the seal.
Deburred faces protect the gasket and the machined joint, so no sharp lip starts a leak path or a crack.
An anti-corrosion finish keeps the plate from rusting into the joint, so the cover lifts cleanly at the next service.
Because the plate matches the OEM part, a technician reuses the original seal and hardware during reassembly.
A clean, flat plate also keeps torque readings accurate, so each fastener reaches the specified value the first time.
Production starts with certified steel plate checked for thickness, hardness and surface condition before stamping.
Press tools cut the blank to the drawing outline, and deburring removes the sharp edge left by the punch.
Hole positions are punched in a fixture, so the bolt pattern matches the joint face on every plate in the batch.
Inspectors check outline, plate thickness, hole spacing and flatness against a gauge made for this part number.
Batch records trace every 804410402 plate to its steel coil and press tool, so a quality question is settled quickly.
The seal plate holds the gasket or O-ring in position and presses it evenly against the machined joint face.
Without a flat, rigid retainer, the seal can shift or be over-compressed at one side, which causes weeping at the edges.
The genuine 804410402 keeps the sealing element centred, so the joint stays tight through vibration and thermal cycling.
Correct thickness restores the designed clamping load, so the cover is neither loose nor distorted by over-torquing.
A sound plate protects the joint faces and the seal, which keeps the assembly serviceable for the long term.
The 804410402 seal plate installs with a socket set and torque wrench during scheduled service or repair.
Release system pressure, clean the area around the cover and place a drain pan before removing the fasteners.
Lift the cover, remove the old plate and check the joint face for burrs, rust or dents that could break the seal.
Fit the specified gasket, position the new plate flat against it, and start all bolts by hand to avoid cross-threading.
Tighten the fasteners in a diagonal sequence to the specified torque, so the plate compresses the seal evenly.
Run the machine and check the joint for weeping after the first operating cycle, then recheck torque when cool.
At service intervals, inspect the plate for distortion, rust or cracks and replace it whenever the cover is removed.
Every 804410402 plate is produced in an ISO 9001 and ISO 14001 certified plant with traceability from steel coil to packed carton.
Incoming plate is tested for thickness and grade, and finished plates are gauged for outline, hole spacing and flatness.
Flatness is checked on a surface plate, and coating thickness is verified so the plate meets the specified range.
Post-production checks include visual inspection, dimensional verification and a trial fit on the XCMG joint fixture.
Sample plates from each batch undergo compression, salt spray and vibration tests to confirm long-term performance.
Cheap copies often use thin plate that bows under torque, so the seal is not compressed evenly and the joint starts to weep.
A plate with the wrong hole spacing forces bolts into misalignment, which damages threads and distorts the cover.
The genuine 804410402 is stamped to the XCMG drawing, so outline, thickness and hole pattern match the original part.
Using genuine XCMG parts also preserves warranty coverage, protects resale value and keeps compatibility with other OEM components.
Backed by XCMG global quality standards and technical support, this seal plate performs reliably in harsh conditions.
Choosing the genuine 804410402 plate prevents a small leak from turning into an expensive component or assembly repair.
A bowed plate lets the seal weep, which drops oil level, attracts dirt and can lead to bearing or gear damage.
Correct steel thickness and reliable coating keep the plate working across a long life, which reduces replacement frequency.
Reliable sealing also extends seal, oil and bearing life, lowering the total cost of ownership for fleet operators.
Service records from construction and mining fleets show genuine XCMG sealing parts cut unplanned downtime.
XCMG builds the 804410402 plate with efficient nesting and controlled stamping that keep material scrap low.
A long working life means fewer replacements, which lowers the raw material and energy tied to each plate.
Keeping joints sealed prevents oil leaks that would otherwise reach soil and groundwater on sensitive sites.
The steel and plating in this part comply with RoHS and REACH requirements for safe handling and responsible recycling.
The 804410402 seal plate is stocked in XCMG depots serving North America, Europe, Asia and Australia.
Each plate is wrapped flat and boxed in a strong carton that guards against bending, dust and damp during transport.
Fleet buyers can request volume pricing and combined freight, which simplifies planning and lowers landed cost.
Live stock data and responsive supply teams help cover urgent requests fast, so machines return to work sooner.
Careful packing keeps the plate flat and clean until fitting, avoiding the distortion seen in badly stored stock.
The XCMG Seal Plate 804410402 is a key sealing part on XCMG excavators, holding the gasket or O-ring evenly against the machined joint.
Its flat body, correct thickness and anti-corrosion coating deliver dependable sealing in hot, wet and dusty conditions.
By compressing the seal evenly, this plate cuts weeping, lowers repair bills and extends the life of the assembly.
Buy only genuine XCMG parts from authorised dealers to secure real quality, correct fitment and lasting performance.
Specify the 804410402 seal plate for dependable sealing and confident, trouble-free servicing.
Work with XCMG, a trusted supplier of engine and hydraulic components for heavy equipment that delivers real value.
OEM 804410402 – XCMG Seal Plate – the definitive seal plate for even seal compression and leak-free joints on your excavator. Stamped to the drawing, finished for a precise fit, and backed by global quality standards. Trust the original to protect your investment and maximise uptime.
