Ford Focus MK3 Drive Shaft Front Driveshaft Right O/S 2.0 EcoBlue KK21-3B436-AB

Ford Focus MK3 Drive Shaft Front Driveshaft Right O/S 2.0 EcoBlue is an original drivetrain component from the Drive shafts group, designed for installation on the right side of the front axle in 2.0 EcoBlue engine versions. This is a solution for users who expect stable torque transmission, proper suspension interaction, and predictable vehicle behavior during acceleration and engine braking. Thanks to factory geometry and precise fitment for the specific drivetrain configuration, this drive shaft helps restore the vehicle's original driving characteristics.

Specifications and technical data

• SKU: KK21-3B436-AB
• Mark: Ford
• Condition: Used
• OEM Part Number: KK21-3B436-AB
• Substitutable numbers: KK21-3B436-AB, KK213B436AB, 41516736G, A0036980
• Location on the vehicle: Front, Right
• Gearbox type: Manual
• Part type: Driveshaft
• Category: Driveshafts

Purpose and function in the drivetrain

The described drive shaft is dedicated to the front right side of the vehicle and works with a manual transmission. It is responsible for the mechanical connection between the transmission and the wheel hub, ensuring efficient power delivery while maintaining proper suspension and steering system operation. A correctly selected drive shaft reduces vibrations, minimizes the risk of unwanted play, and supports driving stability, especially at higher speeds and during dynamic maneuvers.

Compatibility and fitment for Ford Focus MK3 2.0 EcoBlue

The component has been designed with the drivetrain architecture used in the Ford Focus MK3 with the 2.0 EcoBlue unit in mind, which translates into the correct length, geometry, and connection points for the hub and transmission. As a result, proper interaction with the factory suspension, ABS/ESP system, and traction control systems is maintained. Using the correct drive shaft on the right side helps avoid issues with improper joint operating angles, excessive tire wear, or unwanted noises during cornering and acceleration.

Characteristics of the used component

The presented drive shaft is a used part, sourced from dismantling, which offers a reasonable compromise between repair costs and maintaining factory specifications. A used OEM component usually features better fitment than many low-budget replacements, while also allowing for cost savings when repairing the drivetrain. This type of solution is particularly beneficial during comprehensive service work, when other drivetrain-related components are being replaced simultaneously.

Benefits of using an original drive shaft

Using an original drive shaft in the Ford Focus MK3 2.0 EcoBlue supports the maintenance of predictable vehicle handling characteristics. The main advantages include:

• factory fitment for the manual transmission and the right side of the front axle,
• consistent interaction with the stock suspension and steering system,
• reduction of vibration and knocking risks resulting from improper geometry,
• maintenance of proper traction control and stability system operation.

For users who want to better understand the relationships within the drivetrain and the impact of individual components on driving characteristics, the following article will be helpful: Dismantled drive axles and differentials – how to choose gear ratios for your driving style, which discusses the practical aspects of selecting drivetrain components.

Support in selection and OEM part quality

When selecting a drive shaft for a specific Ford version, it is crucial to pay attention to compatibility with the transmission type, installation side, and model generation. In case of doubt, it is worth using catalog numbers and manufacturer data to avoid installation issues. If you want to learn more about the advantages of using original dismantled components, check out the material: Quality assurance and OEM safety – why used original car parts are the best choice for your car?, where safety, durability, and cost-effectiveness of such solutions are described in detail.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Ford and need other components from the same group, such as other drive shafts, intermediate shafts, or components interacting with the transmission, check the available parts in the Ford Drive shafts category.