SUBARU G4135210 Rear Left Driver Seat Bolster Cushion
fits model: Legacy. make: Subaru. year: 2017–2019.
( Manufacturer Part Number: G4135210 ), ( Part Type: Driver Seat Cushion ), ( Color: Beige ), ( Items Included: Bolster Cushion ), ( Vintage Part: No ), ( Placement On Vehicle: Left, Rear ), ( Country Of Origin: United States )
Review SUBARU Rear Left Driver Side Seat Bolster Cushion Oem fits LEGACY 2017–2019
The **Subaru G4135210 Rear Left Driver Seat Bolster Cushion** is a meticulously engineered, high-quality replacement part designed specifically for Subaru vehicles manufactured between the model years 2017 and 2019. This bolster cushion, a critical component of the driver s seat mechanism, plays a vital role in ensuring optimal seating comfort, proper alignment, and smooth operation of the seat s recline and lumbar support functions. Crafted from durable, long-lasting materials, this bolster is built to withstand the daily stresses of driving, providing reliable performance while maintaining the original fit and feel of the vehicle s interior. The cushion features a precise, ergonomic contour that aligns seamlessly with the seat s frame, preventing sagging or misalignment over time. Whether you re restoring a classic Subaru or simply upgrading an aging seat mechanism, this bolster cushion ensures a secure, comfortable, and functional seating experience. Its compatibility with the 2017-2019 model range including popular models like the Outback, Legacy, Forester, and Crosstrek makes it an essential aftermarket solution for drivers seeking to maintain their vehicle s integrity without compromising on quality. With its sturdy construction and exacting fit, this part is an ideal choice for both professional mechanics and DIY enthusiasts looking to preserve their Subaru s original driving dynamics.
Buying a replacement **Subaru G4135210 rear left driver seat bolster cushion** (for the 2017 2019 models) can be a practical solution if your original cushion is damaged, worn out, or missing. Below are the key pros and cons of purchasing one, followed by a conclusion and recommendation.
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### **Pros of Buying a Replacement Bolster Cushion**
1. **Restores Comfort and Support**
The bolster cushion provides additional lumbar and side support, improving seating comfort, especially for long drives. Without it, the seat may feel less ergonomic, leading to discomfort or poor posture.
2. **Prevents Further Damage to the Seat**
If the cushion is torn, cracked, or missing, it can cause the underlying padding or fabric to degrade faster. Replacing it early prevents more extensive seat damage, which could be costly to repair.
3. **Maintains Original Fit and Functionality**
A genuine or high-quality aftermarket part ensures the cushion fits perfectly, maintaining the seat s intended support structure. Cheap or ill-fitting replacements may not provide adequate support.
4. **Aesthetic Consistency**
The bolster cushion often matches the seat s upholstery color and pattern. Replacing it keeps the interior looking uniform and well-maintained, which is important for resale value or personal satisfaction.
5. **Easy Installation**
Most bolster cushions are held in place by clips, Velcro, or a simple snap mechanism. Replacement is typically a straightforward DIY job requiring minimal tools, saving labor costs.
6. **Available from Reliable Sources**
Genuine Subaru parts or reputable aftermarket suppliers (e.g., OEM-equivalent brands like MOPAR, or specialty auto parts stores) offer durable, long-lasting replacements with warranties.
7. **Cost-Effective Compared to Full Seat Replacement**
Replacing just the bolster cushion is far cheaper than buying a new seat or having the existing one professionally repaired. Prices for the part typically range from **$30 to $80**, depending on the source.
8. **Improves Safety and Stability**
A properly supported seat reduces the risk of shifting during sudden stops or turns, enhancing driver and passenger safety.
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### **Cons of Buying a Replacement Bolster Cushion**
1. **Limited Availability of Genuine Parts**
Subaru s official parts may not always be readily available, especially for older models like the 2017 2019 Legacy/Outback. You may need to order from a dealer or an online parts marketplace, which could involve waiting times.
2. **Potential for Counterfeit or Low-Quality Parts**
Buying from untrusted sellers (e.g., eBay without seller verification, unknown online marketplaces) risks receiving a knockoff part that doesn t fit properly, lacks durability, or may even be unsafe. Always check reviews and seller ratings.
3. **DIY Installation Risks**
While the process is usually simple, improper handling (e.g., forcing clips, damaging the seat fabric) could lead to further issues. If unsure, professional installation may be necessary, adding to the cost.
4. **Color or Material Mismatch**
Aftermarket parts may not perfectly match the original upholstery color or texture. This could be noticeable, especially if the seat is otherwise well-maintained. Genuine parts avoid this issue but are pricier.
5. **Wear and Tear Over Time**
Even a high-quality replacement cushion will eventually degrade due to use, sun exposure, or spills. Expect to replace it again in **3 7 years**, depending on mileage and care.
6. **Cost of Accessories**
Some replacements may require additional items like cleaning solution, lubricant for stiff clips, or a seat cover protector to extend the cushion s lifespan. These add to the overall expense.
7. **Voided Warranty (If Applicable)**
If your vehicle is still under warranty, installing aftermarket parts (even if compatible) could void coverage for seat-related issues. Always check your warranty terms before proceeding.
8. **Environmental and Ethical Concerns**
If purchasing new, consider the environmental impact of manufacturing and shipping. Refurbished or recycled parts may be a more sustainable option, though availability is limited.
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### **Conclusion**
Buying a replacement **Subaru G4135210 rear left driver seat bolster cushion** is generally a **worthwhile investment** if your original cushion is damaged or uncomfortable. The benefits in terms of comfort, support, and seat longevity outweigh the minor drawbacks, provided you source the part from a reputable supplier and install it correctly. The cost is minimal compared to the alternative (e.g., buying a new seat), and the process is straightforward for most DIYers.
However, if you re hesitant about installation or quality, weigh the risks of counterfeit parts or mismatched materials. In such cases, consulting a Subaru specialist or dealer for guidance may be prudent.
---
### **Recommendation**
1. **Source the Part Carefully:**- **Genuine Subaru:** Order from an authorized Subaru dealer or their official website (e.g., Subaru Parts Store (https://www.subaru.com/parts/)) for guaranteed compatibility and warranty.
- **Aftermarket Alternatives:** If genuine parts are unavailable or expensive, consider high-quality aftermarket brands like **MOPAR (for Chrysler/Subaru), ACDelco, or local auto parts stores** (e.g., AutoZone, RockAuto). Look for parts with positive reviews and clear fitment guarantees.
- **eBay/Amazon:** Use only if the seller is verified (e.g., Subaru dealerships, trusted auto parts resellers) and the part includes a return policy.
2. **Verify Fitment:**- Double-check the **part number (G4135210)** matches your vehicle s year, trim, and seat type (e.g., cloth vs. leather). Some models may have slight variations.
- If unsure, contact the seller or supplier for confirmation.
3. **Prepare for Installation:**- Gather basic tools: a flathead screwdriver, plastic pry tool (for clips), and lubricant (e.g., WD-40 for stiff clips).
- Clean the seat area before installing to ensure the new cushion adheres properly.
- Follow the manufacturer s instructions or watch a **YouTube tutorial** for your specific Subaru model.
4. **Consider Professional Help if Needed:**- If the seat is heavily damaged (e.g., torn fabric, broken clips) or you re uncomfortable with DIY, take it to a **Subaru technician or upholstery shop** for installation. Labor costs are typically **$50 $100**, but this ensures a perfect fit.
5. **Maintain the Cushion:**- Clean it regularly with a **mild upholstery cleaner** and avoid harsh chemicals.
- Use seat covers to protect it from spills, sunlight, and wear.
- Inspect for signs of wear (e.g., cracking, sagging) and replace if it no longer provides support.
6. **Budget Accordingly:**- **Genuine Subaru:** $50 $80
- **Aftermarket (high-quality):** $30 $60
- **DIY Installation:** Free (if you have tools)
- **Professional Installation:** $50 $100
**Final Verdict:** **Proceed with purchase** if your cushion is clearly worn or missing, and source the part from a trusted supplier. The improvement in comfort and seat integrity justifies the cost and effort. If the cushion is only slightly damaged, you may weigh the option of cleaning or repairing it instead. For most drivers, the replacement is a **smart, low-risk upgrade**.
Details:
Used 2017 2019 SUBARU LEGACY REAR LEFT DRIVER SIDE SEAT BOLSTER CUSHION OEM G4135210Removed from a 2017 Subaru Legacy. In good condition with normal signs of use.
part #: g4135210 prices
- $117.99-$118.00
specifications seainterio:
- for models: Legacy
- for makes: Subaru
- for years: 2017-2019
- mpn: G4135210
- part type: Driver Seat Cushion
- color: Beige
- items included: Bolster Cushion
- vintage part: No
- placement on vehicle: Left, Rear
- country of origin: United States
general seainterio:
- Interior Parts Accessories > Seats, Parts Accessories > Seats
- condition: Used
payments seainterio:
- credit card: Visa
- wallet: Apple-pay
- other
shipping seainterio:
- transit: 5-9 Days
- type: Fixed
- cost: $0.00
- class: Standard
- service: Standard
offer seainterio:
- options: Ship-to-home
- best offers: True
- sold: 0
- quantity: 1
- started: May 24, 2026
- availability: In Stock
returns seainterio:
- paid by: Buyer
- policy: Returns Accepted
- time: 30 Days
seller seainterio:
- city: Myerstown, Pennsylvania
- # reviews: 261
- rating: 100.0%
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