Mercedes W169 W245 Engine Oil Pump M266 Engine Lubrication Unit A2661800351

Mercedes W169 W245 Engine Oil Pump M266 Engine Lubrication Unit is an original component from the Oil pumps and parts group, designed for gasoline-powered engines. This used OEM oil pump ensures factory-standard lubrication system performance, which translates into stable oil pressure and safe operating conditions for the M266 engine.

Specifications and technical data

• SKU: A2661801201
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2661801201
• Substitutable numbers: A2661801201, A 266 180 12 01, A2661800351, A 266 180 03 51
• Fuel type: Petrol
• Category: Oil Pumps & Parts

Purpose and function in the M266 engine

The oil pump in a gasoline engine is responsible for the continuous circulation of lubricant at the appropriate pressure, which protects moving parts from excessive wear. In the case of the M266 unit, using the correct pump is crucial for:

• maintaining stable oil pressure across the entire RPM range,
• proper lubrication of the crankshaft bearings and camshaft,
• dissipating heat from the most thermally stressed areas of the engine,
• reducing the risk of seizure under high loads and long-term operation.

Thanks to a design consistent with the manufacturer's factory specifications, the Mercedes W169 W245 Engine Oil Pump M266 Engine Lubrication Unit maintains the flow parameters and operating characteristics intended for this series of gasoline engines.

Advantages of using an original oil pump

Choosing an original OEM oil pump for a Mercedes offers a number of practical technical benefits:

• Factory fit – the geometry of the housing and the pump drive system is consistent with the M266 engine design, which facilitates installation and eliminates compatibility issues.
• Stable lubrication characteristics – maintaining the oil pressure specified by the manufacturer under typical road conditions and during dynamic driving.
• Consistency with the gasoline system – the pump is designed for the specifics of gasoline-powered units, which promotes smooth operation of the entire powertrain.
• Reduced risk of failure – using a component with factory-compliant parameters reduces the risk of overheating and accelerated engine wear.

For users who value technically correct service solutions, a used OEM pump represents a reasonable compromise between cost and maintaining the original properties of the lubrication system.

Condition, origin, and economic aspect

The offered oil pump is an aftermarket component, which allows for a significant reduction in repair costs compared to new parts, while maintaining the manufacturer's original design. This type of solution is particularly attractive for comprehensive overhauls of gasoline engines, where the total cost of parts is a significant factor.

If you are considering whether a new replacement or a used OEM part is a better choice, an article comparing both options may be helpful – it contains specific examples, cost analysis, and answers to the most frequently asked questions: New or used? A comparison of costs and quality of car parts.

In the context of premium cars such as Mercedes, used original components are increasingly being chosen, which is due to both the build quality and the situation in the new parts market. A broader discussion of this trend can be found in the material: used originals for premium cars as a market trend.

Support for selection and lubrication system upgrades

When replacing an oil pump in a gasoline engine, it is worth simultaneously verifying the condition of other lubrication system components, such as the oil pickup, seals, or oil channels in the block. A consistent service approach helps reduce the risk of needing to re-open the engine in the near future and ensures stable operating conditions for the powertrain.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional pumps, oil flow control modules, or accompanying lubrication system components, check the available parts in the Mercedes Oil pumps and parts category.

Summary

Mercedes W169 W245 Engine Oil Pump M266 Engine Lubrication Unit is an original component designed for gasoline engines that allows for the restoration of proper lubrication system performance in accordance with the manufacturer's specifications. By choosing a used OEM pump, you gain a technically matched solution that is cost-effective and suitable for professional repairs of Mercedes W169/W245 series engines.