BMW 3 Series E90 320si N45 M Sport Front Left N/S Spring Strut Brake Caliper

The BMW E90 320si N45 Left Strut Assembly SPORT is a complete, sporty front suspension component designed for the front axle on the driver's side of the BMW 3 Series E90 320si model with an N45 engine. The assembly combines the functions of a shock absorber and a steering knuckle, which simplifies servicing and ensures consistent performance parameters for vehicles with a more dynamic characteristic. Thanks to its factory SPORT design, it provides a solid foundation for maintaining precise vehicle handling.

Specifications and technical data

• SKU: 8036553-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8036553
• Substitutable numbers: 31318036553, 8036553, 31216793923, 6793923, 34116769091, 6769091, 34116854998, 6854998, 31216764443, 6764443, 34116764643, 6764643, 34116772669, 6772669
• Location on the vehicle: Front, Left
• Category: Suspension Component Replacement Kits

Purpose and Fitment for BMW E90 320si

The presented component has been designed as a sporty suspension module for the front axle, mounted on the left side of the vehicle. The integration of the shock absorber with the steering knuckle allows for maintaining correct wheel geometry, which is particularly important in the 320si version, focused on precise handling and stability at higher speeds. The design, based on BMW solutions, ensures appropriate stiffness while providing predictable vehicle behavior in corners.

Characteristics of Sport Suspension

The SPORT version is distinguished by more dynamic operating characteristics compared to standard suspension configurations. Appropriately selected damping parameters help reduce body roll, improve steering response, and increase vehicle control during more intense driving. The use of a complete shock absorber-steering knuckle module facilitates the maintenance of consistent suspension settings, which translates into repeatable, predictable vehicle behavior.

Benefits of Using a Complete Module

Using a ready-made set of a shock absorber with a steering knuckle for the front, left side, simplifies the servicing process and reduces the risk of installation errors. In one component, you receive key parts responsible for wheel control, which:

• facilitates maintaining correct suspension geometry after replacement,
• reduces the number of workshop operations during disassembly and assembly,
• promotes the maintenance of consistent operating parameters for the entire drivetrain.

For BMW E90 320si owners, this means a more predictable outcome after repair and better control over how the car behaves on the road.

Used OEM Part – A Practical Approach to Repair

The offered shock absorber with steering knuckle is an original BMW component in used condition, allowing you to maintain the factory suspension concept without the need for aftermarket parts with uncertain parameters. For many drivers and workshops, this is a reasonable compromise between cost and maintaining proper handling characteristics. If you want to better understand the differences between factory and sport configurations and make informed decisions about used suspension parts, it's worth reading the article Factory vs. Sport Suspension – Construction Differences and Is It Worth Buying Used Suspension Parts?.

Application in Service and Suspension Upgrades

This set from the Suspension Replacement Kits category is suitable for both typical repairs after mechanical damage and for refreshing the drivetrain in vehicles used more dynamically. The complete front left module allows for restoring correct wheel control in one step, which is particularly important after collisions, hitting curbs, or intensive use on uneven surfaces.

If you are planning a comprehensive repair or upgrade of the front suspension area in your BMW and need other parts from the same group, such as shock absorbers, steering knuckles, or complete strut modules, check the available parts in the BMW Suspension Replacement Kits category.

Additionally, if you are considering the choice between a used original part and an aftermarket replacement and want to approach the topic as objectively as possible, the guide 5 Reasons Why a Used OEM Part is a Better Choice Than an Aftermarket Replacement may be helpful, offering practical criteria for selecting parts for popular models.