BMW 7 Series E65 E66 E67 Left N/S Water Channel Cover Rear Boot Trim Duct

The BMW E65 E66 Rear Left Trunk Water Drain Cover is a factory body part designed to protect the trunk area from uncontrolled water runoff. Thanks to its precise fit for the E65/E66 7 Series models, it ensures stable water drainage and reduces the risk of moisture damage to upholstery and bodywork. This is a practical solution for users who want to maintain the rear of their vehicle in good technical condition.

Specifications and technical data

• SKU: 7033259
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 51717033259
• Substitutable numbers: 51717033259, 7033259
• Weight: 150
• Location on the vehicle: Rear, Left
• Category: Other Exterior Parts & Accessories

Function and Application of the Water Drain Cover

The presented cover operates in the rear left part of the vehicle, in the trunk area, where it is responsible for directing water drained from the body. A correctly installed part helps to limit:

• moisture accumulation in trunk crevices,
• water contact with electrical installations in this area,
• accelerated corrosion of sheet metal and mountings.

This ensures that the trunk area is better protected during operation in rain, at the car wash, or in winter conditions.

Compatibility with BMW E65/E66

The cover has been specifically designed for the construction of the BMW 7 Series E65/E66 generation, which translates to a proper fit for the body shape and factory mounting points. Its placement in the rear-left area allows for seamless integration with the existing trunk water drainage system.

Being an original BMW part means maintaining the correct geometry, which facilitates installation and minimizes the risk of leaks due to imprecise fitting.

Component Characteristics and Installation

The trunk water drain cover is a compact component designed to operate in high humidity conditions. The appropriately selected material ensures resistance to typical operational loads in the rear of the vehicle. The product has a specified weight, which aids in identification and selection of the correct component during servicing.

Installation involves seating the cover in its designated location in the rear-left area and properly connecting it to the water drainage system. By adhering to basic service principles, replacement can be carried out efficiently without interfering with other trunk components.

Why Use an Original Water Drain Cover

Using a factory cover on a BMW E65/E66 maintains compliance with the vehicle's original design. This is particularly important for components responsible for water flow control, where even minor shape deviations can lead to leaks. By choosing this component, you gain:

• a secure fit for the rear-left body section,
• consistency with the factory water drainage system,
• reduced risk of trunk moisture during daily use.

This is a sensible solution for repairs after collisions, corrosion, or interventions in the trunk area, when restoring proper water management is necessary.

If you are planning a comprehensive repair or upgrade of the rear area of your BMW and need other parts from the same group, such as covers, mountings, or additional protection, check the available parts in the Other BMW category.

Technical Support and Parts Knowledge

When selecting body parts and protective components for premium cars, it is advisable to use reliable sources of information. If you are interested in how manufacturers differentiate component designs between standard and sport versions, and how this affects the selection of replacement parts, check out the article Audi RS vs. Other Models – What's Under the Hood and Chassis?, which discusses practical aspects of building and servicing advanced models.