BMW G20 Tailgate Trunk Boot Lid Rear Damper Strut Tension Oil Spring 7450612

BMW G20 Tailgate Trunk Boot Lid Rear Damper Strut Tension Oil Spring is an original oil-based rear lid shock absorber designed for installation in the trunk area. It ensures controlled, smooth opening and closing of the tailgate, improving daily comfort and operational safety. Thanks to its design compliant with the BMW OE standard, the component maintains factory performance parameters and proper fitment to the bodywork.

Specifications and technical data

• SKU: 7450612
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7450612
• Substitutable numbers: 7450612, 51247450612
• Location on the vehicle: Rear
• Category: Boot & Hatch Lids

Purpose and function in the vehicle

The presented damper is a component of the support and guidance system for the rear lid in BMW G20 sedan models. It operates in the rear part of the body, stabilizing the movement of the trunk lid and preventing it from dropping. The appropriately selected characteristics of the oil tension spring allow for predictable behavior of the lid during both opening and closing.

A solution of this type is particularly important in daily use – relieving the hinges, controlling the speed of the lid movement, and reducing mechanical impacts contribute to the durability of the entire rear lid assembly and the convenience of operating the trunk.

Construction and technical characteristics

The BMW G20 Tailgate Trunk Boot Lid Rear Damper Strut Tension Oil Spring uses gas-oil spring technology, where precisely selected pressure and working medium are responsible for stable force characteristics throughout the full range of operation. This type of construction ensures:

• controlled resistance when lifting the lid,
• damping of movement when closing,
• maintenance of repeatable parameters under typical operating conditions.

As a component from the Tailgates and rear parts group, the damper works with hinges and body mounts, creating a cohesive support and damping system. The appropriate mounting points and pin geometry allow for direct application in the intended BMW models without the need for modifications.

Condition, origin, and benefits of use

The offered damper is a used part, sourced from original BMW equipment. This type of OEM component maintains factory fitment to the body, which translates into the correct operating line of the lid and proper load on the hinges. Choosing an original used component is often a beneficial solution for maintenance repairs when one wants to maintain compliance with factory specifications at a reasonable cost.

Using the correct tailgate damper allows for the elimination of typical signs of wear, such as the lid dropping on its own, uneven lifting, or excessive load during manual opening. This directly affects the convenience of operating the trunk and user safety during loading.

Selection, compatibility, and assembly aspects

Before installation, it is recommended to verify the compatibility of the part with the specific body version and model year of the BMW G20 based on the manufacturer's catalog data. Proper selection of the damper for a given model guarantees adequate support force and correct cooperation with the lid mechanics. Installation takes place in the rear area of the vehicle and in typical cases comes down to replacing the element in the existing mounting points.

In workshop practice, it is often recommended to replace dampers in pairs to maintain symmetrical operating characteristics on both sides of the lid. This allows for avoiding uneven load on the hinges and differences in support force, which is significant for the durability of the entire rear lid assembly.

If you are planning a comprehensive repair or modernization of the rear body area in your BMW and need other elements from the same group, such as dampers, hinges, or complete trunk lids, check the available parts in the BMW Tailgates and rear parts category.

Additional information and technical support

When planning a wider renovation or refreshing of the car, it is worth considering the use of proven, used original components, especially in vehicles from model years that are gaining youngtimer status. This allows for preserving the car's character while optimizing repair and modernization costs.

If you are interested in a broader context of using used body, interior, and mechanical elements in vehicles such as BMW, Mercedes, Audi, MINI, or VW, take a look at the article The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years, where you will find practical modernization scenarios and answers to frequently asked questions.