BMW 51357185239 Rear Left Door Window Slot Seal Outer

( Manufacturer Part Number: 51357185239 ), ( Part Type: Window Seal Door ), ( Color: Black ), ( Manufacturer Warranty: 30 Day ), ( Tested: Tested, Cleaned And Inspected ), ( Placement On Vehicle: Rear, Left ), ( Fitment Type: Direct Replacement )

Review BMW Rear Left Door Window Slot Seal Trim Outer 7185239 fits 740LI 2011–2015

The **BMW 51357185239 OEM rear left door window slot seal outer** for the **2011 2015 7 Series (E65/E66) 740Li** is a precision-engineered rubber component designed to ensure a perfect seal between the rear door window and its frame, enhancing both water resistance and noise insulation. Crafted from high-quality, durable rubber with a reinforced silicone core, this seal is engineered to withstand the rigors of daily use while maintaining its flexibility and resilience over time. Its unique, contoured design fits snugly into the window slot, preventing drafts, road noise, and water ingress, which is critical for preserving the interior comfort and cabin integrity of this luxury sedan. The seal s outer profile is meticulously molded to match BMW s exact specifications, ensuring a seamless fit with the door panel and window regulator mechanism, minimizing gaps that could compromise the door s functionality or aesthetic appeal. Ideal for both original equipment replacement and customization projects, this seal is a must-have for owners seeking to restore or enhance the weatherproofing and soundproofing of their 740Li s rear doors. Its long-lasting performance and compatibility with the vehicle s original design make it a reliable choice for maintaining the 7 Series signature blend of sophistication and engineering precision.

### **Pros and Cons of Buying a BMW 51357185239 (2011 2015 740Li Rear Left Door Window Slot Seal Outer)**

1. **OEM Quality and Fit** This is an original BMW part, ensuring a proper fit and finish that matches the vehicle s factory specifications. Aftermarket or generic seals may not align as precisely, leading to gaps or improper sealing.

2. **Durability** BMW s original parts are built to withstand the rigors of daily use, reducing the risk of premature wear or failure compared to cheaper alternatives.

3. **Reliability** The seal is designed to work seamlessly with the door mechanism, preventing water ingress, dust accumulation, and wind noise, which are common issues with worn or improper seals.

4. **Resale Value** Using genuine BMW parts can help maintain the vehicle s value, especially if you plan to sell or trade it in later. Potential buyers often prefer cars with original components.

5. **Warranty Coverage** If the part is purchased from an authorized BMW dealer or a reputable supplier, it may come with a warranty, providing peace of mind against defects.

6. **Aesthetic Consistency** The seal s design matches the original, ensuring the door looks factory-fresh without mismatched or poorly colored parts.

7. **Long-Term Cost Savings** While the upfront cost is higher, a quality seal reduces the likelihood of secondary issues (e.g., rust, electrical gremlins from moisture) that could arise from a poor seal.

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1. **Higher Cost** Genuine BMW parts are significantly more expensive than aftermarket or generic alternatives. This can be a barrier for budget-conscious buyers.

2. **Limited Availability** Depending on the region, sourcing an exact OEM part may require ordering from a dealer or specialty supplier, which could involve shipping delays.

3. **Potential Overkill for Minor Issues** If the seal is only slightly damaged or if the problem is cosmetic (e.g., minor cracking), a genuine part may be more than necessary, making an aftermarket option more cost-effective.

4. **Installation Complexity** Some BMW models, especially older ones like the 7 Series, require careful handling during installation to avoid damaging the door structure or trim. DIYers may need to be meticulous or seek professional help, adding labor costs.

5. **Counterfeit Risks** Purchasing from unverified sellers (e.g., eBay without authentication) can result in counterfeit parts that fail prematurely or don t fit properly.

6. **Environmental and Ethical Concerns** BMW s production processes and sourcing may not align with eco-conscious or ethically minded buyers who prefer recycled or sustainably sourced parts.

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Buying the **BMW 51357185239 (2011 2015 740Li rear left door window slot seal outer)** as an OEM part is the **best choice for long-term reliability, fit, and aesthetics**, especially if you prioritize maintaining the vehicle s value and performance. The higher cost is justified by the part s quality, durability, and compatibility with the car s systems. However, if the budget is tight or the seal is only mildly damaged, an **authenticated aftermarket or high-quality generic alternative** (from reputable brands like **Felix Body, Duralast, or ACDelco**) could be a pragmatic compromise.

For most owners of a luxury vehicle like the 740Li, **investing in the genuine part is worth it** it ensures a seamless, leak-free door operation and preserves the car s premium feel. If you re unsure, consult a BMW specialist to confirm whether the seal is indeed the root cause of the issue before committing to the purchase.

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- **If you value perfection and long-term reliability:** **Purchase the OEM part (51357185239)** from an **authorized BMW dealer or a trusted BMW parts supplier** (e.g., **BMW Parts Online, RockAuto, or local BMW service centers**). Verify the part s authenticity to avoid counterfeits.

- **If you re on a budget or the seal is only slightly worn:** **Opt for a high-quality aftermarket seal** (e.g., **Felix Body s 100% rubber seal or a Duralast equivalent**) from a reputable brand, ensuring it matches the OEM dimensions and material.

- **Always check for leaks or structural damage** in the door frame before replacing the seal, as other issues (e.g., warped glass, damaged weatherstrips) may contribute to the problem.

- **Consider professional installation** if you re not experienced with BMW door trim work, as improper handling can void warranties or damage the door mechanism.

Details:

Remember LEFT means the Drivers side of vehicle and RIGHT Passengers in our listings. Part Fitment and Compatibility.

part #: 51357185239 prices

• $59.99-$182.88

specifications cartrimmouldings:

• for models: 740li
• for makes: Bmw
• for years: 2011-2015
• mpn: 51357185239
• part type: Window Seal Door
• color: Black
• manufacturer warranty: 30 Day
• tested: Tested, Cleaned And Inspected
• placement on vehicle: Rear, Left
• fitment type: Direct Replacement

payments cartrimmouldings:

• other
• wallet: Paypal
• credit card: Discover

shipping cartrimmouldings:

• service: USPS Ground Advantage, FedEx 2Day, FedEx Standard Overnight, USPS Priority Mail
• transit: 4-7 Days
• cost: $0.00
• class: Standard, Expedited, One-day
• carrier: USPS, FedEx
• type: Calculated

seller cartrimmouldings:

• city: Waverly, Minnesota
• rating: 99.7%
• # reviews: 92719

offer cartrimmouldings:

• options: Ship-to-home
• started: March 7, 2026
• availability: In Stock
• sold: 0
• quantity: 1

returns cartrimmouldings:

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

general cartrimmouldings:

• Car Truck Parts Accessories > Exterior Parts Accessories > Body Moldings Trims
• condition: Used

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