51-71-7-027-445 BMW Liner Extension Deflector 750I

Review BMW Genuine Liner Extension Deflector for 750I

The BMW 5 Series Liner Extension Deflector, model number 51-71-7-027-445, is an essential accessory for BMW 5 Series vehicle owners looking to enhance the functionality and aesthetics of their car. This deflector is meticulously designed to fit perfectly on the BMW 5 Series, ensuring a seamless integration with your vehicle.

The primary function of this deflector is to extend the existing underbody liner of your BMW 5 Series, providing additional protection against road debris and damage. The deflector is constructed from high-quality, durable materials, ensuring it can withstand the rigors of daily driving while maintaining its appearance.

This BMW accessory boasts a sleek, aerodynamic design that not only complements the look of your car but also helps to improve its performance. By reducing air turbulence, the deflector contributes to improved fuel efficiency and reduced drag, making your BMW 5 Series more efficient on the road.

Installation of the liner extension deflector is a straightforward process, with no major modifications required to your vehicle. The deflector comes with all necessary mounting hardware and detailed installation instructions, enabling you to fit it yourself or have it installed by a professional.

In summary, the BMW 5 Series Liner Extension Deflector, model number 51-71-7-027-445, is a must-have accessory for any BMW 5 Series owner. It offers superior protection against road debris, enhances the appearance of your car, and contributes to improved performance and fuel efficiency. With its easy installation and durable construction, this deflector is an essential addition to your BMW 5 Series.

The BMW 5 Series Liner Extension Deflector (part number: 51-71-7-027-445) is an accessory designed to enhance the aerodynamics and appearance of BMW 5 Series vehicles. This deflector, often referred to as a rear spoiler or a trunk lid spoiler, is installed at the back of the trunk lid to create downforce and reduce lift at the rear axle. Here are some potential pros and cons of buying this accessory:

1. Enhanced Aerodynamics: The deflector helps to reduce lift at the rear axle, which can improve the vehicle's stability at high speeds and during aggressive driving maneuvers.

2. Improved Appearance: Many BMW enthusiasts consider the deflector to be a desirable cosmetic addition, as it gives the vehicle a more sporty and aggressive look.

3. OEM Quality: As an original equipment manufacturer (OEM) part, the deflector is designed to fit perfectly on BMW 5 Series vehicles and is made of high-quality materials.

4. Durability: OEM parts are often more durable than aftermarket alternatives, as they are designed to withstand the rigors of daily use and harsh weather conditions.

1. Cost: The deflector is an expensive accessory, especially when compared to other aftermarket parts.

2. Installation Complexity: Installing the deflector may require professional installation, which can add to the overall cost.

3. Limited Functional Benefit: While the deflector does provide some functional benefits, the primary reason for purchasing it is often for its aesthetic appeal.

4. Potential Impact on Fuel Economy: The increased aerodynamic drag caused by the deflector may have a small negative impact on fuel economy.

The BMW 5 Series Liner Extension Deflector (part number: 51-71-7-027-445) is an expensive but high-quality accessory that can improve the aerodynamics and appearance of BMW 5 Series vehicles. While it does provide some functional benefits, the primary reason for purchasing it is often for its aesthetic appeal. If you are a BMW enthusiast looking to enhance the look of your vehicle and are willing to pay the price, then this deflector could be a worthwhile investment. However, if you are more concerned with cost or fuel economy, this accessory may not be the best choice for you.

If you are a BMW enthusiast looking to enhance the appearance of your vehicle and are willing to pay the price, then the BMW 5 Series Liner Extension Deflector (part number: 51-71-7-027-445) could be a worthwhile investment. However, if you are more concerned with cost or fuel economy, it may be worth considering other, less expensive aesthetic upgrades or focusing on functional modifications instead. Ultimately, the decision to purchase this accessory should depend on your personal preferences and priorities.

Details:

Electrical parts are not returnable. Parts must be resalable and in the original packaging. Shipping carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

specifications splashflaps:

• brand: Bmw
• mpn: 51-71-7-027-445
• model: 750i 750li 760li B7 760i 745i 745li
• part type: Liner Deflector
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• year: 2002 2003 2004 2005 2006 2007 2008
• parts included: Only Part Reference 7 On The Diagram Is Included

shipping splashflaps:

• transit: 5-12 days
• service: standard, expedited, overnight
• type: fixed
• class: standard, expedited, one-day

returns splashflaps:

• paid by: seller
• policy: returns accepted
• time: 30 days

general splashflaps:

• category: Auto Parts > Exterior Accessories > Protection > Splash Guards Mud Flaps

seller splashflaps:

• city: reno, nevada
• # reviews: 272
• rating: 96.7%

offer splashflaps:

• in stock #: 5
• started: april 8, 2026
• sold #: 15
• availability: in stock
• options: ship-to-home
• prices: $19.11–$23.93
• item condition: New

payments splashflaps:

• other
• wallet: apple-pay
• credit card: mastercard