Citroën Relay III Front Cradle Engine Beam Screw Bolt Lug Holder 509115 Set

Citroën Relay III Front Cradle Engine Beam (MUL) TH Screw Bolt Lug Set is a set of fastening elements designed for use in the front section of the engine support system. The set has been engineered to maintain stable support for the power unit, which translates into safe vehicle operation and predictable body behavior. By using an original solution for the Citroën brand, the component fits well with the factory geometry of the front structure.

Specifications and technical data

• SKU: 509115-1
• Mark: Citroën
• Condition: Used
• OEM Part Number: 509115
• Substitutable numbers: 5091 15, 509115
• Location on the vehicle: Front
• Category: Other Exterior Parts & Accessories

Purpose and function in the vehicle

The described front engine beam bolt set is dedicated for installation in the front area of the vehicle, where it is responsible for a solid connection between the beam and the load-bearing structure. Proper tightening and selection of fastening elements in this area have a direct impact on:

• maintaining the correct position of the powertrain relative to the body,
• reducing unwanted vibrations transmitted to the cabin,
• stability of the suspension geometry in the front part of the car.

Using a complete bolt set allows for maintaining structural consistency of the connections and facilitates service in case of disassembly or replacement of the front engine beam.

Benefits of using the front engine beam bolt set

The use of a dedicated fastening set in the Citroën Relay III ensures predictable vehicle behavior while driving, especially under full load. Key advantages include:

• Compatibility with the factory engine beam – the elements are matched to the design of the front part of the vehicle, which facilitates installation and reduces the risk of service errors.
• Consistency of fastening parameters – using a set with uniform mechanical properties promotes even distribution of forces in the connections.
• Possibility of use in post-accident repairs or preventive maintenance when it is necessary to replace fastening elements in the front engine zone.

For commercial vehicles such as the Relay III, a correctly selected engine beam mount is important for both component durability and operating comfort in intensive working conditions.

Product characteristics and fitment

Citroën Relay III Front Cradle Engine Beam (MUL) TH Screw Bolt Lug Set belongs to the group of structural elements related to mounting the powertrain. The product comes from the Citroën brand offer, which helps maintain compliance with the factory solutions used in this model. The location in the front part of the vehicle requires that the fastening elements meet the requirements for connection rigidity and resistance to operational loads.

Due to the nature of the application, the set will work well both when replacing worn or damaged bolts and during work related to the disassembly of the engine beam as part of larger mechanical or body repairs.

Condition and service application

The offered set is an item from the Other category, which means it complements the main components mounted in the front part of the vehicle. It can be used in workshops specializing in the maintenance of commercial vehicles, as well as by users servicing their own cars, provided that appropriate assembly procedures and tightening torques specified for the given model are followed.

Replacement of the front engine beam bolts is particularly recommended after repairs in the front end area, after collisions, or when noticeable play in the powertrain mounting is observed, as this affects the overall structural stability and steering precision of the vehicle.

If you are planning a comprehensive repair or upgrade of the engine area in your Citroën and need other elements from the same group, such as additional mounts, brackets, or supplementary structural bolts, check the available parts in the Other Citroen category.

Technical knowledge and part selection

When selecting fastening elements in the engine zone, it is worth paying attention to compliance with service documentation and the quality of the solutions used. Differences in design between individual model versions can affect the installation method and the required bolt parameters, which is why using dedicated sets makes it easier to keep the vehicle in a condition consistent with the manufacturer's specifications.

For users interested in deepening their knowledge about structural differences between high-performance versions and standard variants, including the impact of engine and chassis mounting on driving characteristics, the following article may be helpful: Audi RS vs other models – what is hidden under the hood and chassis?.