BMW 51128078840 Sport Rear Bumper Cover Panel X4M

( Manufacturer Part Number: 51128078840 ), ( Type: Bumper ), ( Oe/oem Part Number: 8078840 / 8 078 840 / 8-078-840 ), ( Placement On Vehicle: Rear ), ( Country Of Origin: Germany )

Review BMW X4m M sport Rear Bumper Cover Panel Assembly Gray 8078840 Oem fits F98 2020–2021

The **BMW 51128078840 20-21 F98 X4M M-Sport Rear Bumper Cover Panel (Part Number 8078840)** is a precision-engineered aftermarket component designed to elevate the sporty aesthetic and functional performance of BMW s fifth-generation 5 Series Gran Turismo (F98) models, specifically tailored for the **X4M (xDrive40i) variant equipped with the M-Sport package**. Crafted from high-quality, durable materials, this bumper cover panel is meticulously designed to replicate the factory styling cues of the M-Sport trim while ensuring a seamless fit and superior build quality. The panel features a **bold, aggressive rear design** with sharp, angular contours that enhance the vehicle s aggressive stance, reinforcing the M-Sport s performance-oriented identity. Its **black matte finish** is not only visually striking but also resistant to fading, scratches, and environmental wear, ensuring long-term durability even under harsh driving conditions. The construction incorporates **reinforced side skirts** that extend smoothly into the bumper s lower edge, providing both a sleek appearance and subtle aerodynamic enhancements. Additionally, the panel is engineered to accommodate the **X4M s unique rear lighting and exhaust system integration**, ensuring compatibility with the vehicle s factory components without compromising functionality. Whether installed for its sporty visual appeal or to maintain a consistent aesthetic after modifications, this bumper cover panel is a standout choice for enthusiasts seeking to preserve or enhance the F98 s premium, performance-driven look.

### Pros and Cons of buying a BMW 5 Series (F90/F91/F92/F93) 2020-2021 Rear Bumper Cover Panel (Part Number: 8078840)

1. **OEM Quality and Fit** This is a genuine BMW part, meaning it is designed to match the factory specifications of your vehicle. It will fit perfectly without modifications and maintain the original aesthetics and functionality of your bumper.

2. **Durability and Longevity** BMW uses high-quality materials in their OEM parts, which are built to withstand regular wear and tear, road debris, and minor impacts. This reduces the risk of premature failure compared to aftermarket alternatives.

3. **Reliability and Safety** The bumper cover is part of the vehicle s passive safety system. A properly fitted OEM part ensures that the bumper s crash energy management and structural integrity are preserved, which is critical in the event of a collision.

4. **Resale Value Protection** Using OEM parts helps maintain the vehicle s original condition, which can be beneficial if you plan to sell or trade-in your BMW in the future. Buyers often prefer cars that have been maintained with genuine components.

5. **Warranty Coverage** If the part is purchased directly from BMW or an authorized dealer, it may still be covered under the vehicle s remaining warranty or extended warranty programs, depending on the circumstances.

6. **Aesthetic Consistency** The part is molded to match the exact design of your vehicle s bumper, ensuring a seamless look without the risk of mismatches or poor finishes that can occur with aftermarket parts.

7. **Compatibility with M-Sport and X4M Trims** Since this part is specific to your trim (M-Sport and X4M), it is tailored to the unique styling cues of your vehicle, including any aggressive or sporty design elements.

---

1. **High Cost** OEM parts from BMW are significantly more expensive than aftermarket alternatives. The price can range from **$300 to $600 or more**, depending on the source (dealer vs. third-party seller) and any additional labor costs if installation is required.

2. **Limited Availability** Genuine BMW parts may not always be in stock at local dealers, especially for older model years or less common trims. You may need to order it online, which could delay repairs.

3. **Potential for Counterfeit Parts** If purchasing from unauthorized sellers (e.g., eBay, Facebook Marketplace, or non-BMW-approved online retailers), there is a risk of receiving a counterfeit or low-quality part that does not fit properly or may fail prematurely.

4. **Labor Costs** Even if you purchase the part yourself, installation may require professional labor, especially if it involves removing the bumper, adjusting sensors, or reapplying sealants. Labor costs at a BMW dealership can be **$150 to $300 or more**, depending on the shop.

5. **Overkill for Minor Damage** If the bumper cover has only minor cosmetic damage (e.g., scratches, small dents) and no structural compromise, an OEM replacement may be unnecessary. In such cases, a professional detailer or body shop could repair it for a fraction of the cost.

6. **Environmental and Ethical Concerns** Purchasing new OEM parts contributes to waste, as the old part may still be functional. Some buyers opt for refurbished or remanufactured parts as a more sustainable alternative.

7. **Time-Consuming Replacement** Replacing a bumper cover can be a time-consuming process, especially if it involves recalibrating sensors (e.g., parking sensors, rearview cameras) or adjusting the bumper s alignment. This may require multiple visits to the shop.

---

Buying the **BMW 5 Series (F90/F91/F92/F93) 2020-2021 OEM rear bumper cover panel (8078840)** is the **best choice for long-term reliability, safety, and resale value**, particularly if your bumper is damaged beyond repair or you want to restore it to factory condition. The part ensures a perfect fit, maintains the vehicle s integrity, and aligns with BMW s quality standards.

However, the **high cost and potential for counterfeit parts** make it less ideal for minor repairs or budget-conscious buyers. If you re on a tight budget, consider **aftermarket alternatives** (e.g., ACDelco, Mann Filter, or reputable brands like **Bumper Guard, BMW Parts Store, or RockAuto**) that offer similar quality at a lower price. Alternatively, **refurbished or remanufactured parts** from trusted sources (e.g., **eBay Motors, PartsGeek, or local salvage yards**) can be a cost-effective middle ground.

If you **prioritize authenticity, safety, and long-term value**, the OEM part is the **recommended choice**. If you re **repairing minor damage or working with a limited budget**, weigh the pros and cons carefully and explore alternatives before committing.

---

- Your bumper is severely damaged and needs full replacement.

- You want to maintain the vehicle s original condition for resale or warranty purposes.

- You have access to a trusted BMW dealer or authorized seller to avoid counterfeit parts.

- You re willing to invest in the highest quality for durability and safety.

- The damage is cosmetic (e.g., scratches, minor dents) and repairable by a professional.

- You re open to aftermarket or refurbished parts to save money.

- You re comfortable with potential slight differences in fit or finish compared to OEM.

For the **best balance of quality and cost**, purchase from a **reputable third-party seller with a return policy** (e.g., **BMW Parts Store, RockAuto, or a trusted online marketplace**) and have it installed by a **certified BMW technician** to ensure proper calibration and sealing.

Details:

Shipping cost or carrier may change, based on final destination. Item may show light scuffs, scratches or other imperfections as a result of this being used part. All of the parts are tested either before or after removal from vehicle. Please, do not purchase parts just to check and diagnose your vehicles problem.

Large items include: hood, door shell, fender, engine, transmission, trunk hatch, windshield, bumper, reinforcement clip, sub frame, roof, quarter apron, gas tank, etc. Original BMW part.

part #: 51128078840 prices

• $750.00-$1174.99

specifications frontbumperus:

• for models: F98
• for makes: Bmw
• for years: 2020-2021
• mpn: 51128078840
• type: Bumper
• oe/oem part number: 8078840 / 8 078 840 / 8-078-840
• placement on vehicle: Rear
• country of origin: Germany

returns frontbumperus:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

seller frontbumperus:

• # reviews: 266
• city: Kaufman, Texas
• rating: 99.6%

general frontbumperus:

• condition: Used
• Exterior Parts Accessories > Bumpers Components > Bumpers Reincements

payments frontbumperus:

• other
• credit card: Visa
• wallet: Paypal

offer frontbumperus:

• availability: In Stock
• best offers: True
• options: Ship-to-home
• sold: 0
• started: February 20, 2026
• quantity: 1

shipping frontbumperus:

• type: Fixed
• cost: $245.00
• service: Flat Rate Freight
• class: Freight

Bmw 51128078840 Is Similar To:

• 0056-87-0 Front Bmw Cover Sherman Bumper 525i (22.7% similar) Fitment information may not be available for all products and those without fitment will not have a compatibility link. This product ships directly from the manufacturer. Buyer pays return shipping...(January 21st, 2015)
• Rear Oem X5 Bmw Bumper 2001 Part 0082495711 (29.2% similar) I have a front bumper cover for this vehicle as well. There is a scratch see photo other wise very nice. This cover is a take off item with out any damage. For sale is a very 2001 bmw x5 rear bumper cover...(June 14th, 2014)
• Bumper 4.6is 02-06 4.6 Oem Rear Original Part Bmw X5 4.8is Cover 4.8 (18.1% similar) 8IS bumper is with parking sensor holes patronages PFC. Painting includes primer, base coat, paint, and clear coat. 6IS this is an oem original bmw part not aftermarket this is a bmw X5, rear bumper cover, primed ready to paint. The top part of the bumper comes primed ready to paint the bottom part ...(December 10th, 2014)
• 07-14-7-129-160 Bmw Mini Genuine Bumper Cover Retainer Screw (36.7% similar) Our bmw parts team is here to help. Sedan, sedan with m package. Parts must be resalable and in the original packaging. Sedan wagon, with john cooper type. You can trust Monterey bmw and Porsche parts to be your source for all accessories needs. Sedan wagon, without m3 with m package, 135. Sedan ...(May 20th, 2018)
• 07-14-9-126-886 Bmw Fender Liner Bolt Oem (26.6% similar) ...(October 5th, 2018)
• 07119907269 Bmw Oem 14-16 I3 (12.2% similar) ...(February 22nd, 2018)
• 07147147555 Bmw Oem 08-14 X6 (12.2% similar) This part fits vehicles made in the following years 2008 , 2009 , 2010 , 2011 , 2012 , 2013 , superseded numbers item may have been from a different number manufacture...(December 15th, 2017)
• 114609 15 Bmw Series Gt Gran Turismo Front Bumper Cover (29.6% similar) Also make sure to compare this item with yours before buying, please do your research on the year,make,and model will fit vehicle. Vain numbers are not available for all parts. Other information unless stated otherwise all our body parts are used and may have some damage, scuffs, scratches road wear...(March 24th, 2018)
• 13431296 Aftermarket Products Rear Bumper Cover For Bmw Xdrive Primed (35.9% similar) The items are brand new parts that look and fit same as original, except at a much better price...(November 7th, 2018)
• 13432924 Aftermarket Replacement New Rear Primed Bumper Cover Fits Bmw Series (35.4% similar) Sometimes packages have to go by another delivery service. Usually this is due to the delivery location or size, weight, and dimensions of package. Expedited shipping: if you require shipping, please. Box, APOS, fops, or military mail box. It might take up to 24 hours for us respond. 0L2009-2010, ...(June 25th, 2018)
• 13878724 Aftermarket Products Front Bumper Cover For Bmw Fog Lamp Holes (35.4% similar) The items are brand new parts that look and fit same as original, except at a much better price...(June 8th, 2018)