BMW E87 E90 E91 120i 320i Petrol N46 Automatic Gearbox GA6HP19Z WARRANTY

The BMW E87 E90 E91 120i 320i N46 Automatic Transmission GA6HP19Z is an original automatic gearbox designed for BMW cars with the N46 gasoline engine. A used gearbox from this series is a solution for drivers who expect consistent drivetrain operation and the preservation of factory shifting characteristics. It is a practical choice for repairing or replacing a damaged gearbox in 120i and 320i models.

Specifications and technical data

• SKU: 7556041
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7556041
• Substitutable numbers: 24007556041, 7556041, 24007543090, 7543090, 24007543079, 7543079, 24007540015, 7540015, 24007540016, 7540016
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Other Transmission & Drivetrain

Application and Compatibility

The GA6HP19Z automatic transmission is designed for selected versions of BMW 1 Series E87 and 3 Series E90 and E91 with the N46 gasoline engine. The gearbox's design has been engineered for specific engine parameters, ensuring proper acceleration characteristics, smooth starting, and appropriate gear ratio matching to the torque output.

Selecting this gearbox is particularly important for repairs where maintaining the original drivetrain configuration is crucial. Using a gearbox from the same family helps minimize the risk of issues with electronics, control systems, and communication with other vehicle modules.

Technical Characteristics of the GA6HP19Z Automatic Transmission

The GA6HP19Z transmission is part of BMW's modern automatic gearbox range, designed to work with gasoline engines. The hydraulic system and electronic control unit of the gearbox cooperate with the engine management system, allowing for:

• smooth and predictable gear changes across the entire RPM range,
• appropriate adaptation of gearbox operation to the driver's driving mode,
• maintenance of stable engine speeds during city and highway driving.

The automatic design of the transmission ensures comfortable vehicle operation, especially in city traffic, where frequent gear changes are handled by the control unit without driver intervention. Its compatibility with the N46 gasoline engine helps maintain factory performance and drivetrain refinement.

Benefits of Using an Original Used Gearbox

Choosing an original, used automatic transmission for BMW E87, E90, and E91 offers a solution that combines cost-effective repairs with the preservation of proper drivetrain performance. The main advantages of this approach include:

• preservation of factory shifting characteristics and engine cooperation,
• reduced risk of issues with control unit and wiring harness compatibility,
• the ability to restore full vehicle functionality without the cost of purchasing a new gearbox.

A used gearbox from this series is a good choice for post-accident repairs, mechanical failures, or problems with the existing transmission when the priority is to restore proper drivetrain operation as quickly as possible.

Category and Other BMW Drivetrain Components

The presented gearbox belongs to the Other category, allowing it to be considered a complementary component in comprehensive BMW drivetrain servicing. If you are looking for other items in the Other category dedicated to this brand, check out our offer: BMW Other.

Operational Tips and Additional Materials

When replacing an automatic transmission, it is important to pay attention to correct installation, proper system bleeding, and the use of the appropriate transmission fluid according to the vehicle manufacturer's recommendations. The correct installation and initial startup procedure directly impacts the gearbox's durability and operational refinement.

For drivers interested in comparing technical solutions in sports models and series cars, an article discussing the differences in drivetrain and chassis construction may be helpful – details can be found here: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?.

If you want to better plan your car's service and identify parts that are most frequently replaced, also check out the guide: TOP 10 Most Frequently Replaced Parts in Your Car. This will help you more easily plan future service work on your drivetrain.