OEM 805336737 The XCMG Seal Assembly 48 805336737 is a genuine, pre-assembled sealing unit that contains hydraulic fluid and excludes contamination at a critical joint on XCMG hydraulic excavators.
Issued under the official part number 805336737, the assembly gives the technician a complete, correctly sized sealing solution that matches the bore, rod diameter and groove dimensions it is engineered for.
The components are molded and assembled to the XCMG drawing, so the lip profiles, backup rings and wiper elements work together as a matched set without mismatched clearances.
A multi-element design combines a dynamic lip, a static seal and a guide element, so the assembly holds pressure while guiding the moving part and scraping away dust.
Compounds are selected for hydraulic duty, resisting oil, water and heat, so the seal keeps its elasticity and does not harden, swell or crack in service.
Every kit is checked for element dimensions, compound hardness, lip profile and assembly completeness before the batch is packed for shipment.
Fitted to hydraulic cylinders, rod glands and piston assemblies, this seal assembly restores leak-free operation and protects the internal components from wear.
The 805336737 assembly is produced to the XCMG drawing, so the individual elements fit the groove and bore as a matched set on the first attempt.
A multi-element design combines a dynamic lip, a static seal and a wiper, so the assembly holds pressure while scraping dust away from the rod.
Compounds are chosen for hydraulic duty, resisting oil, water and heat, so the seals keep their elasticity and do not harden or crack.
A guide ring and backup element keep the assembly stable under pressure, so the lip does not extrude into the clearance gap.
Because the kit arrives complete, the technician installs one part number instead of gathering separate seals, rings and wipers.
Correct compound hardness keeps the lip loaded under vibration, so the seal does not chatter or lose contact on rough ground.
A sound seal assembly also stops oil loss and air ingress, which protects the pump, valves and cylinder bore from damage.
Keeping a spare kit on the shelf shortens repair time, so a weeping cylinder does not turn into a full day of lost work.
Each lot begins with certified rubber, polyurethane and PTFE compounds tested for hardness, tensile strength and oil resistance.
Elements are molded and machined in controlled tooling, so the lip profile, cross section and groove dimensions stay uniform from batch to batch.
Trimming removes flash from sealing lips and wiper edges, so each element seats cleanly without leaking or scoring the rod.
Inspectors measure lip angle, cross section, hardness and kit completeness against a gauge made for this exact part number.
Batch records trace every 805336737 kit to its compound lots and assembly run, so a quality question is settled quickly.
A seal assembly closes the clearance in a hydraulic cylinder, so pressurized oil stays on one side and contamination stays on the other.
A worn or damaged seal lets oil bypass the piston or weep from the gland, which reduces force and allows dirt to score the bore.
The genuine 805336737 restores the original sealing geometry, so the cylinder holds pressure and the rod moves without leaking.
Correct fit avoids both a lip that rolls during installation and one that is too tight and causes the rod to stick or chatter.
A sound seal assembly protects the cylinder bore, rod and pump, which keeps service intervals predictable and extends machine life.
The 805336737 kit is installed with a cleaning cloth, a seal pick, assembly grease and a sizing sleeve during cylinder repair.
Release hydraulic pressure, drain the cylinder and clean the gland, piston and rod so no dirt or metal chips enter during the repair.
Check the bore, rod and grooves for scoring, rust or burrs, since a rough surface will damage the new lip as it slides into place.
Lubricate the elements with clean assembly grease, seat them square in their grooves and use a sizing sleeve to guide the rod past the threads.
Assemble the cylinder to the torque in the service data, so the gland compresses the seals evenly without distorting the wiper or lip.
Refill with the specified oil, cycle the cylinder slowly and check the gland and piston area for weeping after the first pressure cycles.
At service intervals, look for oil film on the rod, a scored bore or a hardened wiper and renew the kit before the leak spreads.
Every 805336737 kit is produced in an ISO 9001 and ISO 14001 certified plant with traceability from compound to carton.
Incoming compounds are tested for hardness and oil resistance, and finished elements are gauged for lip profile, section and dimensions.
Each batch is screened for voids, cuts and flash, since these defects cause leaks or let the lip tear under pressure.
Post-production checks include visual review, dimensional verification and a trial fit in the XCMG cylinder gland fixture.
Sample kits from each batch undergo pressure, cycle and oil immersion tests to confirm sealing and compression performance.
Cheap copies often use low-grade compounds or mismatched elements, so the kit leaks or fails soon after installation.
A kit with the wrong lip profile or section can roll during assembly, extrude under pressure or fail to scrape dust from the rod.
The genuine 805336737 is made to the XCMG drawing, so every element in the kit matches the original geometry and material.
Using genuine XCMG parts also preserves warranty coverage, protects resale value and keeps fit with OEM cylinders.
Backed by XCMG global quality standards and technical support, this seal assembly performs reliably in harsh conditions.
Choosing the genuine 805336737 kit prevents a small weep from turning into a scored rod or a damaged cylinder bore.
A failed seal lets oil escape and dust enter, which wears the bore and shortens the life of the cylinder and pump.
A correctly made kit restores the original seal, so it does not need repeated repair and does not leak between services.
Reliable seals also keep pressure contained, which improves machine performance and lowers ownership cost.
Service records from construction and mining fleets show genuine XCMG parts cut unplanned downtime.
XCMG produces the 805336737 kit with efficient molding and assembly runs that keep production scrap low.
A long service life means fewer replacements, which lowers the material and energy tied to each kit.
Sealing hydraulic cylinders prevents oil leaks and contamination, which protects soil, groundwater and internal parts.
The materials in this part comply with RoHS and REACH requirements for safe handling and responsible recycling.
The 805336737 kit is stocked in XCMG depots serving North America, Europe, Asia and Australia.
Each kit is bagged to protect the lips and boxed in a strong carton that guards against dust, damp and crushing.
Fleet buyers can request volume pricing and combined freight, which simplifies planning and lowers landed cost.
Live stock data and responsive supply teams cover urgent requests fast, so machines return to work sooner.
Careful packing keeps the elements uncompressed until fitting, avoiding the permanent set seen in loose storage.
The XCMG Seal Assembly 48 805336737 is a key hydraulic repair part on XCMG excavators, restoring leak-free operation in cylinders and glands.
Its complete kit, matched elements and durable compounds deliver dependable sealing in rain, dust and heat.
By keeping pressure contained, this seal assembly cuts downtime, protects the cylinder bore and extends the life of the machine.
Buy only genuine XCMG parts from authorised dealers to secure real quality, correct fitment and lasting performance.
Specify the 805336737 kit for dependable hydraulic 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 805336737 – XCMG Seal Assembly 48 – the definitive hydraulic seal kit for leak-free cylinders and glands on your excavator. Assembled to the drawing, finished for a precise fit, and backed by global quality standards. Trust the original to protect your investment and maximise uptime.
