860615502 oil pump assembly for XCMG XMR603VT Light Roller

Short Description:

860615502 oil pump assembly is an authentic core lubrication component developed for XCMG XMR603VT light combination roller engine. As the power source of the engine circulating lubrication system, it undertakes the key task of pressurizing and delivering engine oil. The assembly extracts lubricating oil from the oil sump, builds stable working pressure, and quantitatively transports clean oil to all engine friction parts including crankshaft, camshaft, piston and transmission pairs. It forms continuous dynamic lubrication, effectively reduces operating friction and heat generation, and realizes wear resistance, heat dissipation and cleaning protection for engine components. It ensures long-term stable and low-friction operation of the power unit under frequent variable-load construction conditions.

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description

The 860615502 oil pump assembly is factory calibrated according to the lubrication flow and pressure matching standards of XMR603VT roller engine. Adopting precision internal meshing or gear pump structure, it features compact layout, stable oil supply and low pulsation. The high-precision pump body and gear pair are processed with ultra-tight tolerance to ensure stable oil output pressure and uniform flow rate within the full engine speed range. Cooperating with oil filter, oil pipeline and pressure limiting valve, it builds a complete closed-loop lubrication circulation system to realize graded oil supply and pressure regulation.

Road rollers feature frequent start-stop, variable speed switching and long-duration continuous operation. Ordinary non-standard oil pumps have common defects such as insufficient oil supply pressure, unstable flow output, poor wear resistance and easy pressure attenuation. Long-term operation easily leads to insufficient lubrication at key friction pairs, poor heat dissipation, accelerated component wear, and even engine dry friction and holding failure in severe cases. The genuine 860615502 oil pump assembly adopts optimized pump body structure and wear-resistant reinforcement technology. It maintains constant pressure and quantitative oil supply under alternating speed and load changes, effectively improving the uniformity of engine lubrication circulation, eliminating local oil shortage risks, and greatly enhancing the overall operational reliability and service life of the engine.

product parameters

Part Number: 860615502

Applicable Model: XCMG XMR603VT Light Combination Roller

Product Name: Engine Oil Pump Assembly

Core Structure: Precision pump body, high-strength pump gear pair, pressure limiting valve assembly, oil inlet and outlet interfaces, positioning mounting base, driving transmission structure, internal oil guide passage

Main Material: High-rigidity cast pump body, wear-resistant alloy gear, high-precision transmission fitting, pressure-resistant sealing parts, anti-fatigue structural material

Core Function: Extract lubricating oil from oil sump, establish stable lubrication pressure, quantitatively deliver oil to friction pairs, circulate and clean lubricating oil, dissipate frictional heat, maintain normal engine lubrication cycle

Working Characteristics: Stable pressure output, uniform oil supply flow, low operating noise, strong wear resistance, small pressure attenuation, wide speed adaptation range

Working Condition Adaptation: Adapt to frequent speed regulation, intermittent start-stop, long-term continuous operation and variable-load construction working scenarios

Matching Parts: Oil sump assembly, lubricating oil pipeline, oil filter assembly, engine crankcase, pressure sensor, sealing gaskets

Number	Parts Name	Quantity	Material Encoding
1	BOLTM8X65	3
2	WASHER 8	5	860152209
3	WASHER 8	5	860138048
4	OIL PUMP ASSEMBLY	1
5	OIL PUMP GASKET	1
6	BOLTM6X55	1

advantages

• High-precision gear pairing design minimizes internal clearance, effectively reducing oil pressure loss and ensuring rapid pressure build-up during engine start-up.

• Optimized pressure limiting structure realizes automatic pressure regulation, maintaining lubrication pressure within the standard range and avoiding excessive pressure or insufficient oil supply.

• Wear-resistant alloy gear and precision pump body matching greatly reduce operational abrasion, avoiding flow and pressure attenuation caused by long-term component wear.

• Scientific oil passage layout realizes uniform oil supply for the whole engine, eliminating local lubrication dead zones and ensuring consistent friction protection of all parts.

• Compact and reliable transmission structure adapts to frequent speed changes and vibration conditions, with stable power output and low failure rate.

• Original factory parameter calibration perfectly matches XMR603VT engine lubrication system, featuring high assembly accuracy and excellent maintenance interchangeability.

maintenance & replacement tips

• Monitor engine oil pressure indicator regularly; persistent low oil pressure or delayed pressure rise indicates abnormal oil pump operation or clogged oil passage.

• Strictly follow the maintenance cycle to replace lubricating oil and filter elements to prevent impurity deposition from blocking the oil pump inlet and affecting oil supply efficiency.

• Check the tightness of oil pump mounting bolts and sealing joints periodically to avoid oil leakage and insufficient system oil pressure.

• Avoid long-term operation of deteriorated and dirty engine oil to prevent abrasive particles from wearing pump gears and reducing pumping accuracy.

• Inspect oil pump driving state regularly to eliminate jitter, stuck operation and abnormal noise caused by transmission failure.

• Replace with genuine 860615502 oil pump assembly during engine overhaul to restore standard lubrication pressure and flow, ensuring full-system lubrication safety.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.