BMW 3 4 Series F30 F80 M3 F82 M4 Rear Heat Insulator Silencer 7241777

Visual condition of the part

The product shows signs of use visible in the photos.

BMW 3 4 Series F30 F80 M3 F82 M4 Rear Heat Insulator Silencer is an original exhaust system protection component designed for installation in the rear section of the vehicle. Designed by BMW, this heat shield helps reduce heat transfer from hot exhaust components to the bodywork and adjacent parts, supporting stable component operation and driving comfort. This solution is particularly important in higher-performance versions, where temperatures around the exhaust are elevated and require effective, factory-grade thermal protection.

Specifications and technical data

• SKU: 7241777
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7241777
• Substitutable numbers: 51487241777, 7241777
• Location on the vehicle: Rear
• Category: Other Exterior Parts & Accessories

Purpose and function of the heat shield

The exhaust heat shield in BMW F-series models, including the M3 and M4, is responsible for thermal insulation of the rear body section. Its task is to limit the impact of high temperatures generated by the exhaust system on:

• structural body components in the rear zone,
• suspension components and exhaust mounts,
• surrounding electrical wiring and plastic parts.

Thanks to the use of a dedicated shield, the exhaust system can operate under the conditions intended by the manufacturer, and the risk of local overheating and material deformation is reduced. In high-performance vehicles, such as M variants, this has a direct impact on durability and the consistency of performance parameters.

Construction and fitment for the BMW F-series

The presented shield has been developed as an OEM component matched to the geometry of the rear undercarriage in selected BMW F30, F80 M3, and F82 M4 models. The shape and mounting method are adapted to the factory exhaust system and the mounting points provided by the manufacturer, which facilitates installation and ensures a stable fit.

The arrangement of embossments, mounting holes, and shield edges is optimized for hot exhaust gas flow and air circulation in the rear of the vehicle. This design allows for efficient heat dissipation while protecting sensitive elements located near the exhaust.

Vehicle placement and installation aspects

The shield is intended for installation in the rear zone of the vehicle, in the immediate vicinity of the final section of the exhaust system. This placement allows for effective thermal separation of hot parts from the bodywork and rear axle suspension components.

When replacing, it is recommended to:

• check the condition of the mounting points on the body,
• verify the exhaust system hangers and clamps,
• inspect for any signs of overheating in the area of the old shield.

Selecting the correct component is facilitated by the presence of dedicated manufacturer markings and compliance with the factory geometry of the rear undercarriage. As a result, the shield does not interfere with the exhaust or other components after installation, maintaining appropriate technological clearances.

Characteristics of the used component

The offered exhaust heat shield is a pre-owned component, which allows for an economical replacement of a worn or damaged part while maintaining the original BMW design. The used component retains factory fitment and performance characteristics, which is especially important in vehicles where precise alignment of components in the rear undercarriage is required.

Choosing an original, used shield instead of an aftermarket replacement helps maintain the structural integrity of the vehicle and minimizes the risk of installation issues resulting from dimensional differences or different mounting layouts.

Integration with other BMW parts and additional materials

If you are planning a comprehensive repair or upgrade of the rear zone in your BMW and need other parts from the same group, such as additional shields, mounts, or protective elements, check the available parts in the Other BMW category.

For a comparison of solutions used in sports models from other brands and a better understanding of structural differences in the drivetrain and chassis area, it is worth checking out the material discussing the specifics of Audi sports versions – Audi RS vs other models – what is hidden under the hood and chassis?. This allows for a better assessment of how manufacturers design protective and thermal elements in high-performance cars.