BMW E88 120i N43 Rear Right O/S Suspension Leg Axle Brake Disc Caliper

BMW E88 120i N43 Rear Right O/S Suspension Leg Axle Brake Disc Caliper is a complete, used rear right steering knuckle with axle shaft, designed for the drive axle of the BMW 1 Series E88 model with the N43 engine. This component is a key element of the suspension system, responsible for stable wheel guidance, power transmission, and correct suspension geometry. By maintaining the factory design, it ensures compatibility with the original suspension and drivetrain, which facilitates installation and subsequent operation.

Specifications and technical data

• SKU: 6855005-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6855005
• Substitutable numbers: 33217547070, 7547070, 33326774810, 6774810, 34216768694, 6768694, 34216855005, 6855005, 33326774805, 6774805, 33326757080, 6757080, 33326761582, 6761582, 34216778052, 6778052, 33217523960, 7523960, 33416771081, 6771081
• Location on the vehicle: Rear, Right
• Category: Suspension Component Replacement Kits

Purpose and function in the suspension system

The presented set belongs to the Suspension replacement kits group and is intended for installation on the rear right side of the vehicle. The steering knuckle integrated with the axle shaft is responsible for:

• guiding the wheel relative to the body and maintaining the specified suspension geometry,
• stable transmission of torque from the transmission to the wheel,
• cooperation with brake and shock-absorbing system components,
• maintaining proper connection stiffness in the rear drive axle zone.

An element configured in this way allows for efficient replacement of a damaged component without the need to collect many individual parts, which is particularly beneficial in the case of post-accident repairs or intensive vehicle use.

Compatibility and part identification

The offered steering knuckle with axle shaft has been designed as an original component for the BMW 1 Series E88 with the 170 HP N43 unit. Thanks to the preservation of factory specifications, precise matching to the specific vehicle configuration is possible without the need to modify the suspension or drive system.

Product identification is facilitated by assigning it a dedicated OEM designation and associated interchangeable numbers, which allows workshops and users to quickly check compatibility with a specific body version and drivetrain. In practice, this means a lower risk of selecting the wrong element and more efficient repair execution.

Condition, origin, and advantages of using a used part

The element comes from dismantling and is offered as a used BMW part, which is a reasonable compromise between cost and quality. The original design ensures the preservation of factory operating parameters while significantly reducing repair costs compared to new premium replacements.

Choosing a used steering knuckle with an axle shaft is particularly beneficial in the case of:

• rear axle post-accident repairs,
• mechanical damage in the area of the hub, mounts, or axle shaft,
• the need for a quick replacement of the entire assembly to restore vehicle mobility.

For users interested in a broader context of using original parts from dismantling in premium cars, information contained in our blog article may be useful: used parts for Mercedes – original components from dismantling, which discusses the economic and technical aspects of such a solution.

Installation and operational benefits

Using a complete steering knuckle with an axle shaft for the rear right side of the vehicle simplifies the service process and limits the number of workshop operations. The mechanic receives a ready-to-install assembly that, after verifying its condition, can be mounted in place of the damaged element, which:

• reduces repair time,
• reduces the risk of installation errors,
• makes it easier to maintain correct suspension geometry after replacement.

For those who want to deepen their knowledge on the safe selection of parts from the secondary market, we recommend the guide: safe purchase of used car parts online – a step-by-step guide, describing, among other things, selection by OEM numbers and component verification strategy.

Repair expansion within the BMW rear suspension

If you are planning a comprehensive repair or modernization of the rear suspension area in your BMW and need other elements from the same group, such as additional steering knuckles, control arms, or complete hub assemblies, check the available parts in the BMW suspension replacement kits category.