800167156
XCMG 4099227 Oil Pump Gear OEM 800167156 – Genuine Engine Oil Pump Gear for Hydraulic Excavators
2026-10-11
800167159
XCMG 4099230 Oil Pump Gear OEM 800167159 – Genuine Engine Oil Pump Gear for Hydraulic Excavators
2026-10-11

XCMG 4099229 Oil Pump Shaft OEM 800167158 – Genuine Engine Oil Pump Shaft for Hydraulic Excavators

XCMG 4099229 Oil Pump Shaft 800167158
4099229 Oil Pump Shaft
XCMG Вал масляного насоса 4099229 800167158
Вал масляного насоса 4099229
XCMG Eje de bomba de aceite 4099229 800167158
Eje de bomba de aceite 4099229

OEM 800167158 The XCMG 4099229 Oil Pump Shaft 800167158 is a genuine OEM shaft engineered to drive the engine oil pump and maintain proper lubrication pressure in XCMG hydraulic excavators.

Registered under part number 800167158, this oil pump shaft transmits rotational torque from the drive gear to the oil pump rotor or gear set.

The shaft is machined from high-strength alloy steel, heat-treated for wear resistance, and precision-ground for smooth, vibration-free rotation.

Identical OEM diameter, length, keyway and spline geometry mean the oil pump shaft installs directly during repair, with no modification required.

By driving the oil pump reliably, this shaft protects the engine from oil starvation, bearing wear and catastrophic failure under heavy load.

4099229 Oil Pump Shaft 800167158 – Technical Specifications

ParameterSpecification
OEM Number800167158
Product Name4099229 Oil Pump Shaft
BrandXCMG (Genuine OEM)
TypeEngine oil pump drive shaft
MaterialHigh-strength alloy steel (20CrMnTi / equivalent)
Surface FinishCarburized, hardened and ground
Shaft DiameterPer OEM specification
Overall LengthPer OEM specification
Keyway WidthPer OEM specification
Hardness (surface)HRC 58–62
Core HardnessHRC 30–42
Case Depth0.8 mm – 1.2 mm
Surface RoughnessRa ≤ 0.8 µm (bearing journals)
Operating Temperature-40°C to +150°C
Net WeightApproximately 0.38 kg per piece
ApplicationEngine oil pump drive and lubrication system
CompatibilityXCMG XE series excavators, multiple tonnage classes
PackagingProtective film and export carton
StandardsISO 9001:2015, ISO 14001:2015, RoHS, CE
Service Life10,000+ hours under normal operating conditions
WarrantyGenuine XCMG parts warranty coverage

Key Features and Outstanding Benefits

The 800167158 oil pump shaft is machined from high-strength alloy steel that resists wear, fatigue and torsional stress under continuous load.

Carburizing and precision grinding produce a hard, smooth surface that rotates quietly and maintains correct clearances inside the pump.

Identical OEM diameter, length, keyway and spline geometry allow a direct replacement without modification, which means faster installation.

Precise machining ensures uniform torque transmission, reducing vibration and the risk of premature shaft or pump failure.

A durable anti-corrosion finish shields the shaft from rust and oil degradation, extending service life in hot, dusty environments.

Because this is a genuine XCMG component, it preserves warranty coverage and maintains full compatibility with other OEM parts.

Precision Manufacturing and Quality Control

Production begins with certified alloy steel bar that is inspected for chemical composition, hardenability and grain structure before release.

Turning and milling are performed on computer-controlled machines that hold shaft diameter, length and keyway dimensions within exact tolerances.

After machining, each shaft is carburized, quenched and tempered, then ground to final journal dimensions and surface finish.

Batch records allow XCMG to trace every 800167158 oil pump shaft back to its raw material lots, so any quality question can be answered quickly.

Sample shafts from each production batch undergo hardness testing, dimensional inspection and fatigue testing to confirm long-term durability.

How an Oil Pump Shaft Supports Engine Reliability

The oil pump shaft transmits rotational torque from the drive gear to the oil pump rotor or gear set, driving the pump that circulates engine oil.

The 800167158 shaft maintains correct pump speed at both low idle and full load, keeping oil pressure stable and lubrication continuous.

Stable oil pressure protects the engine from metal-to-metal contact, overheating and accelerated wear that shorten component life.

By preventing oil starvation, the shaft also reduces the risk of turbocharger seizure, bearing failure and catastrophic engine damage.

When the oil pump shaft performs correctly, the engine holds oil pressure and the machine experiences less vibration and stress.

Inspect the shaft during routine engine service for wear, scoring or cracks, and replace any worn unit with a genuine 800167158 shaft.

Installation Steps and Routine Maintenance

The 800167158 oil pump shaft installs with standard engine repair tools, which keeps downtime and labour costs low during overhaul work.

Park the excavator on firm level ground, shut down the engine, and allow the system to cool and drain before starting work.

Remove the oil pan or front cover as required, inspect the oil pump drive, and extract the old shaft from the pump housing.

Clean the pump bore and drive gear, position the new shaft, align the key or spline, and slide or press the shaft into place.

Check shaft end play and gear backlash, then reassemble the engine and refill with the correct oil specification.

Start the engine at low idle, check oil pressure, listen for abnormal noise, and confirm correct performance before returning the machine to service.

Cost Savings and Uptime Advantages

Choosing the genuine 800167158 oil pump shaft pays back over time by preventing oil starvation and engine damage.

A worn or broken oil pump shaft causes oil pressure loss, bearing seizure and turbocharger failure, which lead to costly engine repairs.

The durable alloy steel construction of this shaft keeps journal geometry consistent over a long service life, reducing replacement frequency.

Reliable oil pressure also extends the life of connected parts such as the crankshaft, bearings, camshaft, turbo and oil pump.

Field data from large construction and mining fleets shows genuine XCMG engine components reduce lubrication-related downtime significantly.

The shaft remains serviceable for years under normal conditions, removing the need for premature replacement and lowering inventory costs.

Sustainability and Lifecycle Considerations

XCMG applies sustainable manufacturing principles to the 800167158 oil pump shaft through recyclable steel content and energy-efficient processes.

Extended service life, often exceeding 10,000 hours in normal conditions, cuts material waste and lowers the environmental footprint.

Efficient lubrication also reduces fuel consumption and exhaust emissions, which supports regulatory compliance and responsible site management.

Materials used in this oil pump shaft are free from restricted substances and comply with RoHS and REACH rules for safe handling and disposal.

Selecting genuine XCMG engine components supports responsible equipment management while delivering superior operational reliability.

The precision-engineered design allows long, dependable service, which minimises resource consumption across the working life of the machine.

Global Availability and Supply Chain Strength

The 800167158 oil pump shaft is stocked in XCMG regional distribution centres across North America, Europe, Asia and Australia.

Every unit is wrapped with protective film inside a fitted carton, shielding the shaft from impact, moisture and contamination during transit.

For fleet-wide orders, XCMG offers volume pricing and consolidated freight options that reduce procurement costs and simplify inventory planning.

Real-time stock visibility and dedicated supply chain support help fulfil urgent requests quickly, shortening downtime and keeping excavators productive.

Sturdy packaging preserves the factory condition of the shaft until installation, preventing damage that often occurs with poorly stored spare parts.

With the XCMG global aftermarket network behind it, you can depend on consistent quality and availability to keep your fleet at full capacity.

Quality Assurance and Validation Testing

Every 800167158 oil pump shaft comes from an ISO 9001 and ISO 14001 certified plant with full traceability from raw stock to packed product.

Incoming alloy steel is tested for chemical composition, hardenability and grain size before release to production lines.

During manufacturing, shaft diameter, length, keyway dimensions and surface finish are monitored continuously by trained operators.

Post-production checks include hardness testing, dimensional verification and surface roughness inspection to confirm specification compliance.

Sample shafts from each batch undergo fatigue testing and wear testing to prove long-term durability and stable performance.

Only shafts that pass every quality gate are released, so you receive a dependable, high-performance engine component every time you order.

Genuine XCMG Versus Aftermarket Alternatives

Cheap aftermarket oil pump shafts often use low-grade steel, poor heat treatment or inaccurate dimensions that lead to rapid wear.

Those shortcuts create vibration, oil pressure loss and shaft breakage in demanding construction and mining conditions.

The genuine 800167158 is built to exacting XCMG standards, delivering correct fit, smooth rotation and durable performance on site.

Its robust alloy steel construction and precise manufacturing give consistent results, lowering the chance of expensive engine failures and downtime.

Using genuine XCMG parts also preserves warranty coverage, protects resale value and maintains compatibility with other OEM systems.

Backed by XCMG global quality standards and technical support, this oil pump shaft offers performance you can rely on in the harshest conditions.

Conclusion

The XCMG 4099229 Oil Pump Shaft 800167158 is a vital engine component for XCMG hydraulic excavators working in demanding conditions.

Its precision-engineered design, high-strength alloy steel construction and robust manufacturing deliver dependable performance in the toughest environments.

By maintaining reliable oil pump drive and preventing oil starvation, this shaft reduces downtime, lowers maintenance costs and extends engine service life.

Always purchase genuine XCMG parts from authorised dealers to guarantee authenticity, quality and performance for your equipment fleet.

Choose the 800167158 oil pump shaft for dependable lubrication system performance and lasting operational peace of mind.

Partner with XCMG, your trusted source for heavy equipment engine components that deliver real value year after year.


OEM 800167158 – XCMG 4099229 Oil Pump Shaft – the definitive oil pump drive solution for your excavator engine lubrication system. Engineered for durability, designed for precise torque transmission, and backed by global quality standards. Trust the original to protect your investment and maximise uptime.

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