Torque Converter BMW E87 118i E90 318i N46 GA6HP19Z Automatic Gearbox 7588734

Torque Converter BMW E87 118i E90 318i N46 GA6HP19Z Automatic Gearbox is an original drivetrain component designed to work with the automatic transmission in selected BMW models equipped with the N46 engine. This type of converter ensures smooth torque transmission, improving gear shift comfort and drivetrain refinement. Thanks to its design tailored to the specifics of the N46 unit and the GA6HP19Z transmission, it serves as a solid foundation for professional automatic transmission repair.

Specifications and technical data

• SKU: 7588734
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7588734
• Substitutable numbers: 7588734, 24407588734, 7585399, 24407585399
• Gearbox type: Automatic
• Category: Torque Converters

Purpose and role in the drivetrain

The torque converter in an automatic transmission plays a key role in vehicle startup, moving off from a standstill, and damping torsional vibrations between the engine and the transmission. For BMW 1 Series E87 118i and 3 Series E90 318i models with the N46 unit and GA6HP19Z transmission, a properly selected converter translates into:

• stable acceleration without jerking,
• smoother gear shifts,
• better damping of vibrations and noise in the cabin,
• reduced mechanical stress on the automatic transmission.

Thanks to a design matched to the specific drivetrain configuration, this BMW torque converter for automatic transmission helps restore factory drivetrain performance parameters after failure or wear of the previous component.

Technical characteristics and compatibility

The presented converter belongs to the Torque Converters category, meaning it has been specifically designed for use with an automatic transmission. The use of the correct type of torque converter is particularly important in GA6HP transmissions, where precise matching of hydraulic and mechanical parameters affects:

• correct operating pressures in the system,
• effective use of the converter lock-up,
• appropriate acceleration characteristics,
• overall durability of the automatic transmission.

Selecting the right component according to the manufacturer's markings helps avoid compatibility issues, such as incorrect engagement points, excessive slippage, or transmission control unit errors.

Condition, service application, and benefits of installation

The offered converter is a secondary market item in used condition, making it an attractive solution for repairs where a reasonable balance between cost and functionality is important. This type of part is particularly suitable in situations where:

• the existing torque converter has worn out or been damaged,
• there are symptoms of slipping, jerking, or vibration when starting,
• a comprehensive automatic transmission overhaul is being performed,
• it is necessary to replace the converter after ATF oil overheating.

A properly selected and functional converter helps reduce the risk of secondary transmission damage and improves driving comfort through more predictable drivetrain behavior. The automatic transmission then operates under conditions close to factory specifications, which is significant for both durability and the driver's experience.

Professional installation and operational recommendations

Due to the nature of the torque converter's operation and its connection to the transmission's hydraulic system, installation in a specialized automatic transmission service center is recommended. During replacement, it is worth paying attention to:

• checking the ATF oil level and replacing it if necessary,
• checking the integrity of seals at the engine-transmission interface,
• verifying the operation of the oil pump in the automatic transmission,
• proper bleeding and transmission adaptation after installation.

Such a service approach increases the chances of long-term and stable operation of the entire drivetrain after the converter replacement.

Expanding the BMW drivetrain – related parts

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other items from the same group, such as additional converters, components working with the automatic transmission, or other hydraulic parts, check the available parts in the BMW Torque Converters category.