803747690
XCMG 803747690 Coolant Sump – Reliable Cooling System Reservoir for Excavators
2026-07-21
803747626
803747626 Transmission Oil Sump – Genuine XCMG Hydraulic Excavator Component
2026-07-21

XCMG 803747629 Grease Sump – Durable Lubrication Reservoir for Excavators

Grease Sump

Grease Sump

Масляный поддон для смазки

Масляный поддон для смазки

Cárter de grasa

Cárter de grasa

The 803747629 Grease Sump is a genuine OEM component engineered for XCMG hydraulic excavators. It serves as a dedicated reservoir for grease, ensuring reliable lubrication of critical pins and bushings in the working attachment and undercarriage. The 803747629 sump is constructed from high-strength cast iron to withstand heavy loads and harsh operating conditions.

This grease sump is designed to provide a consistent and clean supply of lubricant to the excavator’s greasing system. Its robust construction and precision machining ensure a leak-tight fit, preventing contamination and loss of grease, which is essential for maintaining optimal performance and extending component life.

The 803747629 sump features a corrosion-resistant coating that protects against rust and chemical attack from environmental contaminants and grease additives. This protective layer ensures long-term durability, even in wet, dusty, or saline environments commonly found in construction and mining sites.

Manufactured to XCMG’s exacting OEM standards, the 803747629 Grease Sump guarantees a perfect fit and seamless integration with the excavator’s lubrication system. Its internal volume is optimised to hold sufficient grease for extended operation, reducing the frequency of refills and minimising downtime.

The sump is equipped with standard mounting flanges and bolt holes, enabling straightforward installation without modifications. When used with genuine XCMG seals and gaskets, the 803747629 sump provides a reliable, leak-free seal that prevents grease leakage and maintains system cleanliness.

Regular inspection of the sump is recommended to check for signs of damage, corrosion, or grease contamination. Replacing a worn sump with the genuine 803747629 part restores the lubrication system’s efficiency and prevents premature wear of excavator pins and bushings.

By choosing the genuine XCMG 803747629 Grease Sump, operators eliminate the risks associated with aftermarket alternatives – poor fitment, inadequate sealing, and reduced grease capacity. This OEM component delivers the durability and reliability that XCMG equipment is renowned for.

The sump’s design facilitates easy cleaning and maintenance, with a large opening that allows for efficient grease refilling and visual inspection of the interior. This feature contributes to faster servicing and improved machine availability on job sites.

Compatible with a wide range of XCMG excavator models, the 803747629 sump is a versatile and essential component for any heavy equipment maintenance program. Its proven performance in demanding applications makes it a trusted choice for fleet operators worldwide.

Investing in the genuine 803747629 Grease Sump ensures that your excavator receives the correct lubrication flow, reducing friction and wear on moving parts. This extends the service life of pins, bushings, and pivot points, resulting in lower total operating costs and higher productivity.

Technical Specifications – OEM 803747629 Grease Sump

Parameter Specification
OEM Number803747629
Product NameGrease Sump
BrandXCMG
Component TypeLubrication Reservoir (Grease)
MaterialHigh-strength cast iron with corrosion-resistant coating
Weight (approx.)6.2 kg (13.7 lbs)
Overall Length360 mm
Overall Width220 mm
Overall Height150 mm
Grease Capacity8 Litres
Maximum Operating Temperature80°C
Minimum Operating Temperature-30°C
Surface FinishZinc-rich primer + epoxy topcoat
Sealing InterfaceFlange with O-ring groove
Mounting TypeBolted flange (8 mounting holes)
Grease CompatibilityLithium-based, calcium-based, and polyurea greases
Compatible ModelsXCMG XE Series excavators (XE210, XE240, XE305, XE370, XE400, etc.)
OEM CertificationISO 9001, XCMG Original Quality

Engineering Excellence & Grease Flow Optimisation

The 803747629 Grease Sump is the result of meticulous engineering, combining a high-strength cast iron body with precision-machined internal features that promote smooth grease flow and effective settling of contaminants. The sump’s internal geometry ensures that the grease pump draws clean, consistent lubricant, preventing blockages and reducing wear on distribution valves and lines.

The sump is equipped with an integrated filter screen that traps coarse particles, preventing them from entering the grease circuit. This screen is easily accessible for cleaning during routine maintenance, ensuring that the grease remains free from abrasive debris that could damage bearings and pivot pins.

Robust Material & Corrosion Protection

The 803747629 sump is manufactured from a specialised high-strength cast iron grade, chosen for its excellent wear resistance, vibration damping, and durability. This material can withstand the high pressures and impact loads common in excavator greasing systems, ensuring long-term reliability without cracking or deformation.

To provide superior corrosion protection, the sump is coated with a zinc-rich primer followed by a durable epoxy topcoat. This finish resists chipping, scratching, and chemical attack from alkaline soaps and additives present in many commercial greases. It also withstands salt spray and moisture, making the sump suitable for coastal and high-humidity environments.

Leak-Free Sealing & System Integrity

One of the critical functions of the 803747629 Grease Sump is to provide a leak-proof enclosure for the grease. The sump’s mounting flange is machined to precise flatness and surface finish, ensuring a perfect seal when used with a genuine XCMG gasket. An O-ring groove is incorporated to accommodate a high-quality elastomeric seal, providing a dual sealing barrier that eliminates grease leakage.

The sump also features a large filler port with a tight-fitting cap that prevents external contamination from entering the reservoir. This cap is equipped with a pressure relief valve that vents excess pressure, ensuring the sump operates safely under varying temperature conditions.

Compatibility with XCMG Grease Systems

The 803747629 Grease Sump is fully compatible with all XCMG-approved greases, including lithium complex, calcium sulfonate, and polyurea-based products. Its internal coating and material selection ensure that the sump does not react with the grease, preventing degradation or the formation of harmful deposits. This compatibility allows operators to select the best grease for their specific application without compromising sump integrity.

Applications & Operational Benefits

The 803747629 Grease Sump is an essential component for the automatic or manual greasing systems of XCMG hydraulic excavators, including models such as XE210, XE240, XE305, XE370, XE400, and other XE series machines. It is installed near the pivot points of the boom, arm, bucket, and undercarriage, providing a centralised reservoir for grease distribution.

In heavy-duty applications, the sump ensures that all critical greasing points receive a consistent supply of clean lubricant, reducing friction and wear. This extends the service life of pins, bushings, and bearings, contributing to lower operating costs and increased machine availability. When replacing a damaged or worn sump, using the genuine 803747629 part ensures correct fitment and sealing.

Installation & Service Guidelines

Installing the 803747629 Grease Sump is a straightforward procedure. Before installation, ensure that the mounting surface on the excavator is clean and free of old gasket material. Position the new sump with a new genuine XCMG gasket, align the bolt holes, and tighten the bolts evenly in a cross-pattern to the recommended torque (typically 25–30 N·m). Refill the sump with the appropriate grease to the indicated level.

Periodic inspection of the sump is recommended as part of the machine’s regular maintenance schedule. Check for signs of damage, corrosion, or grease leakage. Clean the filler cap and inspect the filter screen for debris. If any damage to the sump is detected, replace it promptly with a genuine 803747629 sump to maintain system integrity.

Keeping a spare 803747629 sump on hand can minimise downtime during scheduled maintenance or unexpected repairs. Always use genuine XCMG parts to ensure correct fitment, sealing, and long-term reliability.

Quality Assurance & Manufacturing Standards

The 803747629 Grease Sump is produced in ISO 9001 certified facilities under strict quality control. The cast iron is sourced from approved suppliers and tested for chemical composition and mechanical properties before casting. Each sump is cast using precision-moulding techniques to ensure consistent wall thickness and dimensional accuracy.

After casting, the sump undergoes a series of machining operations on CNC equipment to achieve the required tolerances on sealing surfaces, bolt holes, and mating faces. Every sump is 100% inspected for dimensional compliance, surface finish, and leak-tightness. The corrosion-resistant coating is checked for uniform coverage and adhesion.

These rigorous quality measures ensure that every 803747629 sump meets the high standards expected from a genuine XCMG component, delivering reliable performance and long service life. Counterfeit sumps may have casting defects, incorrect dimensions, or poor sealing surfaces, leading to leaks and premature failure. Always source genuine parts from authorised distributors.

Conclusion

The 803747629 Grease Sump is an indispensable component for maintaining the lubrication integrity of XCMG hydraulic excavators. As a genuine OEM part, it provides the exact fit, material quality, and sealing integrity required for reliable, long-term operation. Its robust design, corrosion-resistant coating, and optimised internal flow ensure that critical pins and bushings receive a consistent supply of clean grease, reducing wear and extending component life.

Choosing the genuine XCMG 803747629 sump protects your equipment from the risks of aftermarket alternatives – leaks, contamination, and premature failure. This investment in quality pays dividends in reduced downtime, lower maintenance costs, and enhanced machine productivity. For any lubrication system service or overhaul, trust the 803747629 sump to deliver the performance and reliability that XCMG equipment is famous for.

Always source genuine XCMG parts from authorised distributors to guarantee authenticity and compliance with OEM specifications. The 803747629 Grease Sump is the trusted choice of professionals who demand the best for their heavy equipment.

Hot Sale Genuine XCMG Excavator Parts

Recent News

2025-04-24

XCMG Markings

XCMG Markings Facebook Lin […]
2025-04-24

XCMG Right Arm Cylinder

XCMG Right Arm Cylinder Fa […]
2025-04-24

XCMG Left Arm Cylinder

XCMG Left Arm Cylinder Fac […]
2025-04-24

XCMG Working Device Piping

XCMG Working Device Piping […]
2025-04-24

XCMG Center Column

XCMG Center Column Faceboo […]
2025-04-24

XCMG Unloading Hydraulic System

XCMG Unloading Hydraulic S […]
Chat with us
Chat with us
Questions, doubts, issues? We're here to help you!
Connecting...
Please leave your inquiry and your phone. We will give you feedback within 12 hours.
Our operators are busy. Please try again later
:
:
:
:
Have you got question? Write to us! Please leave your phone or what'sApp
:
:
This chat session has ended
Was this conversation useful? Vote this chat session.
Good Bad