PORSCHE 99652115105ETO Front Seat Backrest Cushion

( Manufacturer Part Number: 99652115105ETO ), ( Model: BOXSTER ), ( Part Type: Seat Backrest Cushion ), ( Year: 2001 ), ( Storage Location: Uporsche ), ( Chassis: 986 ), ( Body Style: Convertible ), ( Note: Black ), ( Interior Color: Graphite Grey ), ( Engine: 3.2l ), ( Transmission: 6-speed Manual ), ( Oe/oem Part Number: 996-521-151-05-eto; 996.521.151.05.eto; 996 521 151 05 Eto ), ( Placement On Vehicle: Fits Right Or Left ), ( Seat Type: Seat Cushion ), ( Vehicle Color: Seal Grey Metallic ), ( Reference Number: 27 ), ( Partout Id: A-128463628 )

Review PORSCHE Front Seat Backrest Cushion Black Oem fits BOXSTER 911 1999–2004

The **Porsche 996 521115105 ETO (1999 2004) 911 Boxster Front Seat Backrest Cushion** is a meticulously engineered, high-performance seating component designed to deliver unparalleled comfort, ergonomic support, and durability for the iconic 911 Boxster. Crafted from premium, high-density, fire-resistant foam likely sourced from OE (Original Equipment) or high-quality aftermarket suppliers this backrest cushion is engineered to replicate the exact contours and support characteristics of Porsche s factory specifications. The material is treated to resist wear, moisture, and degradation over time, ensuring long-lasting performance even under the demanding conditions of spirited driving or extended use. The cushion features a structured, contoured design tailored to the Boxster s ergonomic seating position, providing optimal lumbar and lower back support while maintaining the sporty, forward-leaning posture that defines Porsche s driving experience. The edges are carefully contoured to prevent sagging, and the foam density is balanced to offer both plush cushioning and structural integrity, reducing fatigue during long drives or track sessions. For added refinement, the cushion is often paired with OE-style stitching or high-quality synthetic leather upholstery, maintaining the Boxster s premium aesthetic while enhancing durability. Whether used in a classic restoration, a high-performance modification, or as a replacement for worn-out factory components, this backrest cushion ensures that every journey in the 911 Boxster remains as exhilarating as it is comfortable, embodying the perfect blend of German engineering precision and driver-centric design.

### **Pros and Cons of Buying a 1999 2004 Porsche 996 Boxster (Front Seat Backrest Cushion, VIN 52115105ETO)**

#### **Pros**

1. **Classic 996 Design and Driving Experience**

The 996 Boxster (1999 2004) is a well-regarded model in Porsche s history, offering a refined roadster experience with a balance of performance and comfort. The front seat backrest cushion (if in good condition) adds a touch of luxury, providing better lumbar support and ergonomics compared to basic sports seats.

2. **Reliability and Durability**

The 996 Boxster is known for its robust engineering, especially in the base models (like the S or Turbo variants). With proper maintenance, many examples easily exceed 150,000 200,000 miles. The 3.4L flat-six engine (in the S model) and 3.6L (in later Turbo models) are durable if serviced regularly.

3. **Strong Aftermarket Support**

The 996 has a thriving aftermarket, with readily available parts, upgrades, and tuning options. Performance chips, suspension kits, and aesthetic modifications are widely available, making customization easier than in newer Porsche models.

4. **Good Value for Money (Compared to Later Models)**

The 996 is significantly cheaper than a 997 or 981 Boxster, offering a more affordable entry into Porsche ownership while still delivering a premium driving experience. A well-maintained example can be found for a fraction of the cost of a newer model.

5. **Timeless Appeal and Collectibility**

The 996 Boxster is a sought-after classic, especially in lower mileage or restored condition. Its design is iconic, and it holds value better than some other Porsche models from the same era. A properly maintained example can appreciate over time.

6. **Convertible Convenience**

The Boxster s soft-top is reliable (though not as durable as later models), and the conversion mechanism is straightforward to maintain. The open-air experience remains one of the best aspects of the 996.

7. **Lower Running Costs (Compared to Modern Porsches)**

Fuel efficiency is decent for a sports car (around 18 22 MPG combined), and maintenance costs are lower than those of newer models with complex electronics and hybrid systems.

---

#### **Cons**

1. **Aging Electronics and Reliability Issues**

- **Infotainment system** (if equipped) can be glitchy or slow.

- **Power windows/locks** may develop intermittent failures.

- **Fuel pump and fuel system issues** (especially in older examples) can lead to stalling or hard starts.

- **Transmission (in automatic models)** can be less refined than later Porsche automatics.

2. **Rust and Corrosion Concerns**

The 996 is prone to rust, particularly in the wheel arches, sills, and undercarriage. A thorough inspection of the chassis and body is essential before purchase. Salt damage in northern climates can accelerate rust.

3. **Comfort and Interior Quality**

While the front seat backrest cushion improves comfort, the 996 s interior is still quite basic compared to modern Porsches. The seats are firm and sporty, which may not suit everyone, and the cabin lacks the advanced materials and refinement found in newer models.

4. **Resale Value and Depreciation**

The 996 has seen fluctuations in value due to its mixed reputation. While some examples hold their worth well, others (especially those with high mileage or neglect) depreciate faster than expected. The 997 Boxster (2005 2012) is often preferred by collectors, which can make the 996 slightly less desirable in the used market.

5. **Emissions and Modern Compliance**

Older 996 models (pre-2003) may struggle with modern emissions standards in some regions, requiring additional modifications or inspections. This can add unexpected costs if the car is used in areas with strict emissions laws.

6. **Maintenance Costs Can Add Up**

While cheaper than newer Porsches, the 996 still requires regular servicing. Ignoring maintenance (e.g., timing belt, suspension, or fluid changes) can lead to costly repairs. The 3.4L engine in the S model is generally reliable, but the 3.6L Turbo (in later models) can be more demanding if not properly cared for.

7. **Limited Modern Safety Features**

The 996 lacks advanced safety tech like modern airbag systems, stability control (in base models), or modern crash structures. While it handles well, it doesn t meet today s safety standards, which may be a concern for some buyers.

---

### **Conclusion**

- Appreciate classic Porsche design and driving dynamics.

- Are willing to invest time in maintenance and potential upgrades.

- Prefer a more affordable entry into Porsche ownership without sacrificing too much performance or character.

- Enjoy the open-air experience and don t mind some quirks in favor of a timeless roadster.

- Prioritize modern comfort, technology, and safety features.

- Want a car that requires minimal upkeep or has a straightforward resale market.

- Are sensitive to potential rust or electronic issues without proper inspection.

### **Recommendation**

If you find a **well-documented, low-mileage 996 Boxster (preferably with a service history, no rust, and a reliable engine)**, it can be an outstanding purchase. Focus on:

- **Inspecting the chassis for rust** (especially in the wheel wells and sills).

- **Testing the electronics** (windows, locks, infotainment).

- **Checking the engine and transmission** for smooth operation.

- **Verifying maintenance records** (timing belt, suspension, fluids).

- A **2002 2004 Boxster S (3.4L engine)** it s the most refined and reliable variant of the 996.

- A **Boxster Turbo (2003 2004)** if you want more power, though it requires slightly more attention.

- **Budgeting for potential upgrades** (e.g., suspension, exhaust, or interior mods) to enhance comfort and performance.

Ultimately, the 996 Boxster remains a **fantastic driving machine** and a great way to experience Porsche s legacy without the modern premium. With careful selection and maintenance, it can provide decades of enjoyment.

Details:

Manufacturer Part Number: ETO. BMW Porsche Audi VW Other Makes. Chassis: 986. Superseded Part Number ; ETO.

Stock Number: 26126. Warranty covers the part only; labor and installation costs are not covered. Condition: Used. Model: Boxster.

Storage Location: UPORSCHE.

part #: 99652115105eto price

• $109.17

specifications seainterio:

• for models: 911, Boxster
• for makes: Porsche
• for years: 1999-2004
• mpn: 99652115105eto
• model: Boxster
• part type: Seat Backrest Cushion
• year: 2001
• storage location: Uporsche
• chassis: 986
• body style: Convertible
• note: Black
• interior color: Graphite Grey
• engine: 3.2l
• transmission: 6-speed Manual
• oe/oem part number: 996-521-151-05-eto; 996.521.151.05.eto; 996 521 151 05 Eto
• placement on vehicle: Fits Right Or Left
• seat type: Seat Cushion
• vehicle color: Seal Grey Metallic
• reference number: 27
• partout id: A-128463628

shipping seainterio:

• cost: $0.00
• transit: 4-9 Days
• type: Fixed
• service: USPS Ground Advantage, UPS Ground
• class: Standard
• carrier: USPS, UPS

seller seainterio:

• rating: 99.9%
• city: Rancho Cordova, California
• # reviews: 79704

offer seainterio:

• availability: In Stock
• started: May 17, 2026
• quantity: 1
• options: Ship-to-home
• sold: 0
• best offers: True

general seainterio:

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

payments seainterio:

• wallet: Paypal
• cash
• other
• credit card: Mastercard
• money order
• check

returns seainterio:

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

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