BMW E87 E90 LCI 116i 118i 318i N43 Automatic Gearbox Planetary Gear Set GA6HP19Z

BMW E87 E90 LCI 116i 118i 318i N43 Automatic Gearbox Planetary Gear Set GA6HP19Z is an original drivetrain component designed to work with the automatic transmission in selected BMW 1 and 3 Series models. The planetary gear set is responsible for precise torque transmission, smooth gear shifting, and stable transmission operation during daily use. Thanks to its OEM design, it ensures factory fitment, predictable performance, and compliance with the vehicle's factory specifications, which is crucial for professional automatic transmission repair.

Specifications and technical data

• SKU: 7630955-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7630955
• Substitutable numbers: 7630955, 24007630955, 7592524, 24007592524, 7572796, 24007572796, 7572460, 24007572460, 7576181, 24007576181
• Gearbox type: Automatic
• Category: Gearboxes, Racks & Pinions

Purpose and function in the drivetrain

The presented planetary gear set is an internal component of the automatic transmission used in BMW E87 and E90 LCI models with 116i, 118i, and 318i petrol engines. It is responsible for:

• executing individual gear ratios in automatic mode,
• efficient distribution and transmission of torque,
• maintaining proper transmission operating characteristics under various loads,
• maintaining smooth gear shifting without jerking or delays.

A properly selected planetary gear set allows for maintaining the consistency of the entire drivetrain, which translates into driving comfort, predictable throttle response, and reduced risk of costly failures in the future.

Set construction and benefits of using OEM parts

The planetary gear set consists of precisely matched gear components working with the carrier, shafts, and other automatic transmission sub-assemblies. As an OEM part from BMW, it has been designed for:

• maintaining factory dimensional tolerances and fitment,
• compatibility with the original transmission control system,
• proper interaction with the lubrication and cooling system,
• maintaining the factory gear-shifting character.

Using an original planetary gear set instead of a random replacement helps avoid issues with improper meshing, excessive play, or operating noise. This is particularly important in automatic transmissions, where manufacturing precision and compliance with the manufacturer's design directly affect the durability of the entire assembly.

Condition, verification, and preparation for installation

The item comes from disassembly and is offered as a used part, which is a cost-effective solution while maintaining the original BMW specification. Before being offered for sale, this type of component is standardly verified for:

• absence of mechanical damage to the gear teeth,
• condition of mating surfaces,
• proper seating and geometry of the sub-assembly.

Thanks to this, the planetary gear set can be used as a fully functional service component for the repair or regeneration of an automatic transmission, without the need to resort to expensive new parts.

Why choose a BMW planetary gear set for an automatic transmission

In BMW automatic transmissions, maintaining the consistency of all internal components is key. By choosing this set, you gain:

• an original design specifically engineered for the given transmission generation,
• the possibility of professional repair without interfering with the manufacturer's design,
• reduced risk of incompatibility typical of random replacements,
• a reasonable compromise between repair cost and component durability.

This solution is especially recommended for workshops specializing in BMW automatic transmissions that expect repeatable results and stable transmission operation after the repair is completed.

Repair expansion and additional technical information

When performing comprehensive automatic transmission service, it is worth simultaneously verifying the condition of other internal elements, such as clutch baskets, friction plates, control valves, or the oil pump. A consistent service approach allows for reducing the number of transmission removals in the future and optimizing the total cost of vehicle ownership.

If you are planning a comprehensive repair or upgrade of the steering system area in your BMW and need other elements from the same group, such as steering racks, gear housings, or brackets, check the available parts in the BMW Steering Racks and Housings category.

Additional practical tips regarding the selection of used drivetrain components and the differences between OEM parts and unreliable replacements can be found in the article: Whining differential? Find out why a used OEM drive axle is a better investment than an unreliable replacement.