BMW 1 Series F40 118i B38C Rear Right O/S Suspension Leg Hub Brake Disc

BMW F40 118i B38C Rear Right Steering Knuckle 140HP is a suspension component designed for the rear right side of the vehicle, specifically engineered for the BMW 1 Series F40 generation with the B38C engine. Thanks to its factory geometry and precise fitment, it ensures stable handling, proper suspension operation, and predictable vehicle behavior in daily use. This solution is particularly beneficial for professional repairs or restoring factory handling parameters in 140 HP vehicles, where both safety and consistency of settings are paramount.

Specifications and technical data

• SKU: 6898964
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6898964
• Substitutable numbers: 33306898964, 6898964, 33406891921, 6891921, 34206883026, 6883026, 34216799367, 6799367, 33406891923, 6891923, 34216864141, 6864141
• Location on the vehicle: Rear, Right
• Category: Suspension Component Replacement Kits

Purpose and function in the suspension system

The rear right steering knuckle in the BMW F40 118i B38C is a key suspension component responsible for wheel guidance, transferring loads from the body to the tire, and maintaining proper axle geometry. Combined with other components from the Suspension Replacement Kits group, it creates a stable, cohesive system that influences handling precision, the effectiveness of power delivery, and predictable vehicle behavior during braking and acceleration.

The vehicle-specific placement reduces the risk of selection errors – the part is designed specifically for the rear right side, which facilitates repair planning and minimizes vehicle downtime in the workshop.

Benefits of using an original BMW steering knuckle

Using a steering knuckle dedicated to the BMW F40 118i B38C allows for maintaining factory suspension performance without the need for structural modifications or compromise solutions. A properly selected component:

• maintains correct wheel camber and toe angles,
• ensures proper interaction with the braking system and mounting elements,
• reduces tire wear resulting from incorrect geometry,
• facilitates subsequent wheel alignment adjustments at a diagnostic station.

For users expecting consistent, predictable handling and stability at higher speeds, using the correct steering knuckle as part of a comprehensive suspension replacement is a crucial element of the entire service process.

Characteristics of the used component

The offered steering knuckle is a salvaged part, which allows for an economical repair while maintaining the original BMW design. A used component of this type is particularly attractive in situations involving mechanical damage (e.g., after a collision or hitting an obstacle) where replacing the entire wheel mounting assembly is necessary. Choosing a used part enables cost reduction while maintaining compliance with factory design solutions.

Before installation, standard workshop procedures are recommended: checking mounting points, verifying compatibility with braking components, and subsequent rear axle geometry alignment. This approach allows for fully utilizing the part's potential and restoring stable, safe handling to the vehicle.

Selection and compatibility within Suspension Replacement Kits

The rear right steering knuckle for the BMW F40 118i B38C is a component that should be treated as part of a larger service package. When performing repairs on the rear axle, it is often worth considering the simultaneous replacement of other components from the same group, such as control arms, bushings, links, or mounting hardware, to avoid returning to the same area in the near future. A consistent approach to suspension replacement improves repair durability and reduces the risk of uneven wear of individual sub-assemblies.

If you are planning a comprehensive repair or upgrade of the rear suspension area in your BMW and need other elements from the same group, such as control arms, bushings, or mounts, check the available parts in the BMW Suspension Replacement Kits category.

Technical support and knowledge about used suspension

When choosing used suspension components, such as the rear right steering knuckle for the BMW F40 118i B38C, it is worth relying on reliable technical knowledge regarding the differences between stock solutions and more sporty configurations. A detailed discussion of the design, operating parameters, and principles of selecting used sub-assemblies can be found in the article Stock vs. Sport Suspension – design differences and is it worth buying used suspension parts?, which helps to consciously plan the scope of repairs and select the appropriate components.