BMW X5 E53 4.4i Petrol M62 Automatic Auto Gearbox A5S 440Z 1423949 WARRANTY

Listing details

The differential is sold with a 90-day warranty! It was tested before removal and is in full working order.

The BMW X5 E53 4.4i Petrol M62 Automatic Auto Gearbox A5S 440Z is a complete, used transmission designed for the M62 petrol engine, interacting with the drivetrain through an advanced automatic transmission. The A5S 440Z model was developed specifically for the characteristics of the 4.4i unit, ensuring smooth gear shifts, stable operation in both city and highway modes, and appropriate durability under the typical loads of this SUV.

Specifications and technical data

• SKU: 1423949
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1423949
• Substitutable numbers: 24001423949, 24001423950, 1423949, 1423950
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Automatic Transmission

Application and compatibility with the BMW X5 E53 4.4i

The presented gearbox belongs to the Automatic transmissions group dedicated to the BMW X5 E53 with the M62 4.4i petrol engine. The transmission design is adapted to the torque characteristics of this unit, which allows for maintaining factory-like driving sensations, correct shift points, and predictable drivetrain behavior in various operating modes.

The A5S 440Z automatic transmission is used in configurations with a drivetrain compatible with the petrol engine; therefore, when selecting it for a specific vehicle, it is crucial to verify compatibility with the engine code, model year, and electronic control system. As a result, the gearbox can be used both as a replacement part in the event of a failure and as a base for professional refurbishment.

Technical characteristics of the automatic transmission

The automatic transmission used in the BMW X5 E53 4.4i was designed as a hydromechanical automatic transmission, adapted to work with a petrol engine. The control system selects gears smoothly, reducing jerking and ensuring comfortable gear changes under typical road conditions.

In practice, this means:

• automatic adjustment of gear ratios to the load and the driver's driving style,
• stable operation at higher speeds,
• the possibility of using the gearbox as a replacement in vehicles with the same drivetrain configuration.

Due to the design intended for the M62 petrol unit, the gearbox is optimized for the RPM range and torque characteristics, which is important for both durability and the refinement of the drivetrain.

Condition, origin, and benefits of choosing a used gearbox

The offered transmission is a used component, which allows for a significant reduction in repair costs compared to purchasing a brand-new unit or a full rebuild of a damaged gearbox. For many workshops and users, this is a reasonable compromise between price and functionality, especially in the case of vehicles that are used intensively or have higher mileage.

When choosing a used automatic transmission, it is worth paying attention to:

• compatibility with the specific petrol engine version,
• the type of automatic transmission used,
• the possibility of transferring accessories and controls from the existing system.

To better assess when purchasing a used transmission is cost-effective and what to look for during installation and selection, it is worth reading the guide: Used gearbox – when is it worth it and what you need to remember.

BMW automatic transmissions – expansion and modernization of the drivetrain

If you are planning a comprehensive repair or modernization of the drivetrain area in your BMW and need other components from the same group, such as automatic transmissions for different engine versions, complete gearbox assemblies, or additional mounting components, check the available parts in the BMW automatic transmissions category.

The availability of used OEM components has a direct impact on the vehicle's downtime at the service center and the total cost of repair. In situations where restoring the car's functionality quickly is a priority, an article describing how readily available components affect workshop workflow organization may be helpful: Availability of car parts off-the-shelf vs. repair time – how do used OEMs shorten the stay in the workshop?.

Summary

The BMW X5 E53 4.4i Petrol M62 Automatic Auto Gearbox A5S 440Z is a practical solution for users and workshops looking for a complete, used transmission for the petrol engine in this model. Properly matched to the vehicle configuration, it allows for restoring the correct operation of the drivetrain, maintaining gear shift characteristics close to factory standards, and optimizing service costs while maintaining a professional repair standard.