BMW 7139702 Front Left Lower Seat Thigh Cushion

( Manufacturer Part Number: 7139702 ), ( Part Type: Seat Cushion ), ( Color: Black ), ( Items Included: Oem ), ( Vintage Part: No ), ( Placement On Vehicle: Front, Left ), ( Manufacturer Warranty: 3 Months ), ( Features: Adjustable Seat, Easy Clean ), ( Country Of Origin: Germany )

Review BMW Front Left Side Lower Seat Thigh Support Cushion Oem fits E89 Z4 2009–2016

The **BMW 7139702 (E89 Z4) Front Left Lower Seat Thigh Cushion** is a meticulously engineered aftermarket replacement part designed to restore comfort, support, and functionality to the lower thigh area of the original E89 Z4 seating system. This component is a direct-fit solution, meticulously crafted to match the precise dimensions, contours, and material specifications of BMW s factory-installed cushion, ensuring seamless integration with the existing seat structure. Constructed from high-density, durable foam with a reinforced outer layer, this thigh cushion is engineered to provide enhanced ergonomic support, reducing pressure points and improving overall seating comfort during both short drives and extended journeys. Its design accounts for the unique contours of the E89 Z4 s front left seat, offering a snug fit that aligns perfectly with the seat s frame and upholstery, minimizing gaps and ensuring a premium feel. Whether used as a replacement for wear-and-tear or as part of a customization upgrade, this part is ideal for owners seeking to maintain the Z4 s sporty yet refined seating experience while addressing potential discomfort caused by aging or damaged factory components. The attention to detail in its construction including precise stitching, reinforced edges, and a finish that complements the vehicle s interior makes it a standout choice for those prioritizing both performance and aesthetics in their aftermarket modifications.

### **Pros and Cons of Buying a BMW Z4 (E89) Front Left Lower Seat Thigh Cushion (Part Number: 7139702, 09-16 Model Year)**

1. **Authentic Fit and Finish** BMW uses high-quality materials in their original parts, ensuring a seamless fit with the rest of the seat and vehicle. This reduces the risk of misalignment or discomfort compared to aftermarket alternatives.

2. **Durability** BMW s OEM (Original Equipment Manufacturer) parts are built to last, often with reinforced stitching, high-density foam, and robust construction. This part is designed to withstand daily wear and tear, especially in a sporty vehicle like the Z4.

3. **Warranty Coverage** If purchased directly from BMW or an authorized dealer, the part may come with a warranty, providing peace of mind against defects. Some third-party sellers also offer warranties, though these vary in terms.

4. **Improved Comfort** The thigh cushion is specifically designed to enhance support and reduce pressure points, which is particularly useful for long drives or aggressive driving styles. A worn-out or damaged cushion can lead to discomfort, so replacing it restores proper ergonomics.

5. **Resale Value** Keeping the vehicle well-maintained with OEM parts can help preserve its value, especially if you plan to sell or trade it in the future. A fully stocked interior with original components is often preferred by buyers.

6. **Easy Installation** As an OEM part, it is designed to fit perfectly without modification, making installation straightforward for those with basic mechanical skills. Some aftermarket parts may require adjustments or additional tools.

7. **Aesthetic Consistency** The part matches the original design of the Z4 s interior, ensuring a cohesive look. Aftermarket parts may not always blend as seamlessly, potentially detracting from the vehicle s premium appearance.

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1. **High Cost** OEM parts from BMW are significantly more expensive than aftermarket alternatives. The price can range from **$200 to $400 **, depending on the seller and whether labor is included. This may be a deterrent for budget-conscious buyers.

2. **Limited Availability** Finding the exact part number (7139702) may require ordering from BMW or an authorized dealer, which can involve longer wait times compared to aftermarket suppliers. Some online marketplaces or salvage yards may also carry used parts, but these may not be in pristine condition.

3. **Potential for Counterfeit Parts** Purchasing from unverified sellers (e.g., eBay, Craigslist, or unlicensed online stores) risks receiving counterfeit or refurbished parts that don t meet OEM standards. Always verify the seller s reputation and part authenticity.

4. **Overkill for Minor Wear** If the cushion is only slightly worn or damaged, replacing it with an OEM part may be unnecessary. In such cases, an aftermarket cushion or even a DIY repair (e.g., reupholstery) could be a more cost-effective solution.

5. **Installation Challenges** While the part is designed for easy installation, removing the old cushion may require disassembling parts of the seat mechanism. Those without experience may need to pay for professional labor, adding to the cost.

6. **Environmental and Ethical Concerns** OEM parts contribute to e-waste and resource consumption. If sustainability is a priority, aftermarket or recycled alternatives might be a more eco-friendly choice.

7. **Depreciation Factor** The Z4 (E89) is a classic roadster with a limited production run, and its parts market is niche. Over time, the cost of OEM parts may increase due to scarcity, making early replacement more expensive than waiting.

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### **Conclusion**

Buying an **OEM BMW Z4 (E89) front left lower seat thigh cushion (7139702)** is ideal if you prioritize **authenticity, durability, and long-term comfort** without compromising on fit or finish. The part ensures a premium driving experience and maintains the vehicle s resale value. However, the **high cost and potential availability issues** make it less appealing for casual buyers or those on a tight budget.

For most owners, this part is a **worthwhile investment** if the cushion is significantly worn or damaged, as it restores the seat s functionality and luxury. If the damage is minor, exploring **aftermarket options** (e.g., Recaro, Trackster, or budget-friendly alternatives) could provide a more affordable solution while still improving comfort.

- You value original BMW quality and aesthetics.

- The cushion is severely damaged or missing.

- You plan to keep the vehicle long-term and want to preserve its value.

- You re comfortable paying a premium for reliability.

- The damage is cosmetic or minor.

- You re looking to save money without sacrificing too much comfort.

- You can find a high-quality aftermarket part (e.g., from **Recaro, Trackster, or reputable suppliers like O Reilly Auto Parts**).

- **Verify the seller** if purchasing online to avoid counterfeit parts. Always check reviews, return policies, and warranty coverage.

For the **2009 2016 BMW Z4 (E89)**, the OEM thigh cushion is a **solid choice for serious owners**, but weigh the cost against your budget and the part s actual condition before committing.

Details:

All electronic items are tested before being listed. As a result of it being used part, the item may show light scuffs, scratches, or other imperfections. All of the parts are tested either before or after removal from vehicle. ENG: 3.0L TRAN: AUTO.

Shipping prices for ground apply only to the continental states of USA. 2011 BMW Z4 K94. Please match part number to ensure fitment. This part may fit one or all of the described vehicles.

Fitment and Compatibility.

part #: 7139702 prices

• $59.40-$62.25

specifications seainterio:

• for models: E89, Z4
• for makes: Bmw
• for years: 2009-2016
• mpn: 7139702
• part type: Seat Cushion
• color: Black
• items included: Oem
• vintage part: No
• placement on vehicle: Front, Left
• manufacturer warranty: 3 Months
• features: Adjustable Seat, Easy Clean
• country of origin: Germany

shipping seainterio:

• transit: 4-10 Days
• cost: $0.00
• service: USPS Ground Advantage
• class: Standard
• carrier: USPS
• type: Fixed

payments seainterio:

• credit card: Diners-club
• wallet: Paypal
• money order
• other

offer seainterio:

• quantity: 1
• availability: In Stock
• best offers: True
• options: Ship-to-home
• started: April 5, 2026
• sold: 0

general seainterio:

• Interior Parts Accessories > Seats, Parts Accessories > Seats
• condition: Used

returns seainterio:

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

seller seainterio:

• city: Lincoln, California
• # reviews: 10972
• rating: 99.8%

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