Mercedes W168 A140 A160 Petrol M166 Engine Connecting Rod Piston Conrod

Mercedes W168 A140 A160 Petrol M166 Engine Connecting Rod Piston Conrod is an original crankshaft system component designed for the M166 petrol engine in the A160 model. Thanks to its factory origin, it ensures precise fitment, correct operating geometry, and the maintenance of the engine's original performance parameters. This is a practical solution for engine repairs when you want to maintain a build consistent with the manufacturer's specifications.

Specifications and technical data

• SKU: A1660304417
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1660304417
• Substitutable numbers: A1660304417, A 166 030 44 17, A1660300020, A 166 030 00 20, KZ
• Fuel type: Petrol
• Category: Other Engine Parts

Purpose and function in the M166 engine

The presented Mercedes W168 A140 A160 Petrol M166 Engine Connecting Rod Piston Conrod operates in the M166 petrol engine used in the Mercedes A-Class A160 version. It is responsible for transferring combustion forces from the cylinder chamber to the crankshaft, thus directly influencing the refinement, efficiency, and durability of the power unit. Using an original component allows for maintaining factory stroke parameters, the mass of the crankshaft-piston assembly, and the proper balance of the entire system.

Benefits of using an original Mercedes W168 A140 A160 Petrol M166 Engine Connecting Rod Piston Conrod

Choosing an original Mercedes W168 A140 A160 Petrol M166 Engine Connecting Rod Piston Conrod is particularly important for petrol engine repairs where fitment accuracy and stability across the entire RPM range are essential. Using a part from the same engine family allows you to:

• maintain proper compression and combustion chamber sealing,
• preserve the engine's factory performance characteristics,
• minimize the risk of vibrations and excessive load on crankshaft bearings,
• facilitate installation thanks to factory dimensions and geometry.

This solution is particularly beneficial for partial overhauls, where you are replacing individual components of the crankshaft-piston system while wishing to adhere to the original manufacturer's specifications.

Component condition and use in service practice

The offered Mercedes W168 A140 A160 Petrol M166 Engine Connecting Rod Piston Conrod is an aftermarket part, which helps reduce repair costs while maintaining the original design. This type of part is suitable for both routine repairs (e.g., after damage to a single cylinder) and stage-based rebuilding of a petrol engine when there is no need to replace the complete set of pistons.

In workshop practice, such a component is used, among other things, for:

• local damage to the piston or connecting rod in one cylinder,
• repairs after seizure while maintaining block geometry,
• rebuilding M166 units in daily-driven vehicles.

Vehicle fitment and identification parameters

To correctly select a Mercedes W168 A140 A160 Petrol M166 Engine Connecting Rod Piston Conrod for a specific Mercedes A160, it is crucial to verify the part markings and compatibility with the M166 petrol engine. The product has an assigned OEM part number and interchangeable numbers, which facilitates clear identification in service catalogs and parts selection systems. Additionally, an SKU is available in the product description, allowing you to quickly find this specific item in the store's offer.

Selection support and other elements for Mercedes

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as additional pistons, connecting rods, or elements cooperating with the crankshaft-piston system, check the available parts in the Other Mercedes category.

When planning repairs for petrol units, it is also worth expanding your knowledge about the structural differences between sports and standard engine versions – in this context, an article describing the characteristics of more powerful units and their accessories may be helpful, available here: Audi RS vs other models – what is hidden under the hood and chassis?.

If you are considering how the use of original used components – such as the Mercedes W168 A140 A160 Petrol M166 Engine Connecting Rod Piston Conrod – affects the future value of the vehicle, it is worth reading a guide on the cost-effectiveness of such repairs: original used parts and the car resale price.