1. Window Parts Interior For Sale
  2. sku: 10365645546767721
  3. LEXUS 6817450040

LEXUS 6817450040 Rear Left Door Window Inner Belt Seal Weatherstrip

fits model: Ls500, Ls500h. make: Lexus. year: 1925–2018.

6817450040 Lexus 18-25 Ls500 Ls500h Rear Left Door Window Inner Belt Weatherstrip Seal Oem

( Manufacturer Part Number: 6817450040 ), ( Type: Inner Beltline Seal ), ( Color: Black ), ( Material: Rubber ), ( Features: Waterproof ), ( Vintage Part: No ), ( Universal Fitment: Yes ), ( Placement On Vehicle: Left, Rear ), ( Country Of Origin: Japan )

Review LEXUS Rear Left Door Window Inner Belt Weatherstrip Seal Oem fits LS500 LS500H 1925–2018

The **Lexus 6817450040 18-25 LS500/LS500h Rear Left Door Window Inner Belt Weatherstrip Seal** is a precision-engineered rubber and polyurethane composite component designed exclusively for the luxury LS500 and hybrid LS500h models produced between the 2018 and 2025 model years. This high-performance weatherstrip seal serves as a critical barrier between the interior cabin and the exterior elements, ensuring optimal airtightness, water resistance, and noise insulation while maintaining the vehicle s sleek, aerodynamic design. Crafted from durable, weather-resistant materials, this inner belt weatherstrip is engineered to withstand the rigors of daily driving, including exposure to UV radiation, temperature fluctuations, and environmental contaminants, all while preserving the integrity of the door s sealing mechanism. Its contoured shape and strategic placement along the window belt and door frame create a tight, flexible seal that prevents drafts, road noise, and moisture intrusion, thereby enhancing passenger comfort and protecting the vehicle s interior from wear and tear. The seal s robust construction also helps mitigate the risk of condensation buildup and mold growth, contributing to a fresher, more hygienic cabin environment. Whether replacing a worn or damaged original component or upgrading for improved durability, this OEM-quality weatherstrip seal ensures a seamless fit with the LS500 s refined door structure, maintaining the vehicle s premium aesthetics and functional performance. Ideal for both professional installers and discerning DIY enthusiasts, this part exemplifies Lexus s commitment to quality, offering a long-lasting solution that aligns with the brand s reputation for excellence in engineering and craftsmanship.

### **Pros and Cons of buying a Lexus Part (6817450040 18-25 LS500/LS500H Rear Left Door Window Inner Belt Weatherstrip Seal)**

#### **Pros:**

1. **Direct Fitment** This part is specifically designed for the 2018 2025 Lexus LS500 and LS500H, ensuring compatibility without modification. It eliminates the risk of sizing issues that can occur with generic replacements.

2. **Quality Material** Lexus OEM parts are manufactured to strict standards, using durable materials that resist cracking, warping, or degradation over time. This helps maintain proper sealing and window operation.

3. **Prevents Water Leaks and Drafts** A worn or damaged weatherstrip seal can allow moisture, dust, and cold air to enter the cabin, leading to condensation, mold, or discomfort. Replacing it restores a tight seal, improving interior comfort and reducing long-term damage.

4. **Improves Window Operation** If the inner belt or weatherstrip is frayed or stiff, it can cause the window to stick or fail to roll smoothly. A new seal ensures smooth, quiet operation, reducing wear on the window mechanism.

5. **Aesthetic and Functional Restoration** Over time, weatherstrips can become discolored, cracked, or deformed. Replacing it restores the door s appearance while maintaining proper function.

6. **Prevents Further Damage** Ignoring a failing weatherstrip can lead to more extensive issues, such as rust on the door frame or electrical problems with the window regulator. Addressing it early is a cost-effective preventive measure.

7. **Warranty Coverage (If Purchased from Authorized Dealer)** Some Lexus dealerships or authorized parts suppliers may offer warranties on OEM replacements, providing peace of mind against premature failure.

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#### **Cons:**

1. **Higher Cost Compared to Aftermarket Alternatives** OEM Lexus parts are more expensive than generic or third-party weatherstrips. While they offer reliability, budget-conscious buyers may opt for cheaper alternatives, though quality may vary.

2. **Installation Complexity** Replacing a weatherstrip requires careful removal of the door panel, which can be time-consuming and may require tools like trim removal tools or a pry bar. DIYers without experience may struggle, potentially damaging the door trim.

3. **Limited Availability Outside Dealerships** While this part is widely available online (e.g., through Lexus dealerships, Amazon, or specialty auto parts retailers), sourcing may be limited in some regions, requiring advance ordering.

4. **Potential for Counterfeit Parts** If purchasing from untrusted sellers (e.g., eBay without verification or unlicensed suppliers), there is a risk of receiving fake or low-quality replicas. Always buy from reputable sources.

5. **Labor Costs if Professional Installation is Needed** If the owner lacks mechanical experience, hiring a Lexus specialist or body shop for installation can add significant labor costs (typically $100 $200 per door).

6. **Durability Concerns Over Time** While OEM parts are high-quality, extreme weather conditions (e.g., prolonged UV exposure, salt exposure in coastal areas) can still degrade the material over several years, requiring eventual replacement.

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### **Conclusion:**

The **Lexus 6817450040 rear left door window inner belt weatherstrip seal** is a **high-quality, direct-fit replacement** that addresses common issues like water leaks, drafts, and window malfunctions. Its **durability and compatibility** make it a reliable choice for maintaining the integrity of the LS500/LS500H s door seals. However, the **higher cost and installation complexity** may deter some buyers, especially those on a tight budget or without DIY experience.

For **long-term reliability and peace of mind**, the OEM part is the best option, particularly if the vehicle is kept for many years. If cost is a concern, **high-quality aftermarket alternatives** (e.g., from brands like Duralast or Dayco) can be considered, though they may not match Lexus s exact specifications.

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### **Recommendation:**

- **Buy from an authorized Lexus dealer or a trusted online retailer** (e.g., RockAuto, Amazon with verified seller, or eBay from a Lexus-approved supplier) to ensure authenticity.

- **Assess DIY skills** before attempting installation. If unsure, consult a Lexus technician to avoid damaging the door trim.

- **Consider a full door seal kit** if the weatherstrip is part of a larger set (e.g., including the outer belt or door seal), as this may provide better long-term protection.

- **Budget for installation** if hiring a professional, factor in labor costs to avoid unexpected expenses.

- **Prioritize replacement if the seal is visibly damaged or leaking**, as neglect can lead to more costly repairs (e.g., rust, electrical issues).

**Final Verdict:** This is a **worthwhile investment** for owners who value OEM quality and long-term reliability, especially for high-end vehicles like the LS500/LS500H. For those seeking a balance between cost and performance, a **premium aftermarket alternative** (with positive reviews) could be a viable compromise.

Details:

Shipping FREE SHIPPING available for most items within lower 48 states. Mileage: 142K MILES. Please verify it fits and is compatible with your specific model before purchasing. Donor vehicle: 2018 LEXUS LS500 3.5L V6 AWD AUTOMATIC TRANSMISSION.

Color: BLUE 8X5-NIGHTFALL MICA EXTERIOR / BROWN LA93-NOBLE BROWN INTERIOR. This item has been previously used.

part #: 6817450040 price

  • $49.99

specifications vintagwinde:

  • for models: Ls500, Ls500h
  • for makes: Lexus
  • for years: 1925-2018
  • mpn: 6817450040
  • type: Inner Beltline Seal
  • color: Black
  • material: Rubber
  • features: Waterproof
  • vintage part: No
  • universal fitment: Yes
  • placement on vehicle: Left, Rear
  • country of origin: Japan

general vintagwinde:

  • Exterior Parts Accessories > Glass Window Parts > Window Seals, Gaskets Trims
  • condition: Used

returns vintagwinde:

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

payments vintagwinde:

  • wallet: Google-pay
  • credit card: Mastercard
  • other

shipping vintagwinde:

  • transit: 2-5 Days
  • service: Standard
  • cost: $0.00
  • class: Standard
  • type: Fixed

offer vintagwinde:

  • quantity: 1
  • availability: In Stock
  • best offers: True
  • started: April 9, 2026
  • sold: 0
  • options: Ship-to-home

seller vintagwinde:

  • # reviews: 86633
  • rating: 99.9%
  • city: Traverse City, Michigan
for models: ls500, ls500h, for makes: lexus, for years: 1925-2018, type: inner beltline seal, features: waterproof, vintage part: no, universal fitment: yes, placement on vehicle: left, rear, country of origin: japan,
category: auto parts > exterior parts accessories > glass window parts > window seals, gaskets trims, color: black, material: rubber, sku: 10365645546767721,
Lexus 6817450040 Is Similar To:
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1 offer $49.99 USD
  • Used. Offer #1 priced at $49.99 + $0.00 shipping estimate = $49.99* total. P/N: 14500 Donor vehicle: 2018 LEXUS LS500 3.5L V6 AWD AUTOMATIC TRANSMISSION.FREE SHIPPING

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