OEM 813403877 The XCMG Hose Assembly 813403877 is a genuine OEM pre-crimped hose assembly that carries hydraulic oil between the main control valve and the travel motor circuit on XCMG hydraulic excavators.
Marked with part number 813403877, this factory assembly leaves the warehouse with both end fittings already crimped, so the mechanic mounts it directly and avoids cutting or crimping hose in the field.
The inner tube is molded from oil-resistant synthetic rubber, wrapped in high-tensile steel braid and sheathed in a cover that resists abrasion, weather and oil mist.
Bore, overall length and fitting angles follow the XCMG drawing, so the line follows the frame and clears booms, guards and hot manifolds without contact.
Every crimp is proof tested above the rated working pressure, so joints stay tight and the assembly does not weep during long shifts.
Each unit is impulse tested and dimensionally checked before packing, so the assembly you receive matches the factory specification precisely.
The 813403877 assembly arrives with both ends crimped at the factory, so the fitter skips measuring, cutting and field crimping.
Its steel braid contains pressure spikes, so the hose resists ballooning when the machine climbs slopes or pushes into a pile.
The pre-set route follows the OEM layout, so the line clears the boom, frame and hot exhaust without touching any surface.
A weather-resistant cover handles grit, oil mist and sunlight, which are the usual causes of cover cracking and braid rust.
Correct bore and length preserve the designed flow rate, so functions move at the speed and pressure the valve expects.
Crimped fittings hold rated pressure without weeping, which keeps the pump from working against internal leakage.
Since the assembly is boxed and ready, a technician completes a line replacement in minutes instead of an hour.
Production opens with certified rubber compound and steel wire tested for hardness, tensile strength and oil resistance.
The hose is laid on a mandrel shaped to the OEM route, then vulcanized so tube, braid and cover bond into one strong wall.
Crimp machines close each collar to a set diameter, and every crimp is gauged to confirm the correct compression.
Inspectors verify assembly length, fitting angle, bore and crimp size against a checking fixture for this part number.
Batch records trace every 813403877 assembly to its hose lot and crimp program, so a quality question is closed quickly.
The assembly links the control valve to the travel motor, giving pressurized oil a flexible but fully sealed path.
A worn hose bleeds pressure, which slows travel and implement movement and forces the pump to run hotter and harder.
The genuine 813403877 seals at both crimps and along the wall, so flow stays steady and the circuit stays clean.
Correct routing away from hot and moving parts prevents abrasion, which is the leading cause of hose failure on site.
A sound assembly protects pumps, valves and cylinders, which keeps cycle times and machine uptime predictable.
The 813403877 hose assembly installs with a wrench set and torque wrench during scheduled hydraulic service.
Release hydraulic pressure fully, stop the engine and place a drain pan under the fittings before loosening anything.
Remove the old assembly, then clean both ports and inspect threads, O-rings and sealing faces for damage or corrosion.
Set the new assembly along the OEM route, start both ends by hand, and never twist the hose to close a gap.
Tighten fittings to the specified torque, refit the clamps and confirm the hose cannot touch any other component.
Start the engine, cycle each function slowly, and check both crimps and the hose body for weeping or movement.
At service intervals, check clamps and look for cover damage, bulges or oil film at the fittings.
Every 813403877 assembly is produced in an ISO 9001 and ISO 14001 certified plant with traceability from hose lot to packed carton.
Incoming hose and fittings are checked for dimensions and grade, and finished assemblies are gauged for length, angle and crimp size.
Each assembly is proof tested above its working pressure, and the result is recorded against the batch number.
Post-production checks include visual inspection, cap fit and a trial installation on the XCMG hydraulic line fixture.
Sample assemblies from each batch undergo burst, impulse and salt spray tests to confirm long-term performance.
Cheap copies often use weak braid and poor crimps, so the hose bulges or blows off a fitting within a short time.
A hose with the wrong length or fitting angle kinks or stresses the port, which leads to seepage and repeat repairs.
The genuine 813403877 is built to the XCMG drawing, so bore, length, fitting angle and pressure rating 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 hose assembly performs reliably in harsh conditions.
Choosing the genuine 813403877 assembly prevents a small weep from turning into an expensive pump or valve repair.
A burst hose drains the reservoir fast, which starves the pump and damages internal parts within minutes.
Sound braid and correct crimps keep the assembly working across a long life, which reduces replacement frequency.
Reliable hydraulic delivery also extends pump, seal and oil life, lowering the total cost of ownership for fleets.
Service records from construction and mining fleets show genuine XCMG hydraulic parts cut unplanned downtime.
XCMG builds the 813403877 assembly with efficient mandrel cycles and controlled crimping that keep material scrap low.
A long working life means fewer replacements, which lowers the raw material and energy tied to each assembly.
Containing hydraulic leaks protects soil and groundwater, helping operators meet rules on sensitive job sites.
The rubber and steel in this part comply with RoHS and REACH requirements for safe handling and responsible recycling.
The 813403877 hose assembly is stocked in XCMG depots serving North America, Europe, Asia and Australia.
Each assembly is capped and boxed in strong cartons that guard against kinking, 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 assembly in factory condition until fitting, avoiding the cover damage seen in loose stock.
The XCMG Hose Assembly 813403877 is a key hydraulic part on XCMG excavators, linking the control valve to the travel motor circuit.
Its oil-resistant tube, steel braid and crimped ends deliver dependable pressure in hot, wet and dusty conditions.
By preventing leaks and chafing, this assembly cuts downtime, lowers repair bills and protects the hydraulic system.
Buy only genuine XCMG parts from authorised dealers to secure real quality, correct fitment and lasting performance.
Specify the 813403877 hose assembly for dependable hydraulic connections and confident, trouble-free servicing.
Work with XCMG, a trusted supplier of engine and hydraulic components for heavy equipment that delivers real value.
OEM 813403877 – XCMG Hose Assembly – the definitive pre-crimped hose assembly for hydraulic connections on your excavator. Built for pressure and abrasion resistance, routed for exact fitment, and backed by global quality standards. Trust the original to protect your investment and keep uptime high.
