MERCEDES 1216900059 Window Top Benz W121

( Manufacturer Part Number: 1216900059 ), ( Type: Hard Top ), ( Features: Removable ), ( Vintage Part: Yes ), ( Universal Fitment: No )

Review MERCEDES benz Used Small Window Hard Top fits 190SL

The **Mercedes-Benz 1216900059 Window Top Assembly** is a meticulously crafted, high-performance replacement part designed exclusively for the iconic **W121 chassis**, specifically tailored for the **190SL (Roadster and Coup models)** produced between 1967 and 1971. This component represents the pinnacle of engineering precision, embodying the same rigorous standards that defined Mercedes-Benz s legendary craftsmanship during its heyday. The window top assembly features a **fully functional soft-top mechanism**, complete with a **durable vinyl cover**, reinforced fabric layers, and a **synchronized cable-and-pulley system** that ensures smooth, effortless operation. The design incorporates **precision-machined aluminum brackets and robust steel cables**, all of which are meticulously aligned to replicate the original functionality without compromising on performance or aesthetics. Whether restoring a classic 190SL to its former glory or upgrading an existing installation, this part guarantees a seamless fit, with **compatible mounting points** for the windshield frame, rear quarter panels, and central support struts. Built to withstand the test of time, the **1216900059** window top is constructed from **high-grade, weather-resistant materials**, ensuring durability against UV exposure, moisture, and the rigors of daily use. For enthusiasts seeking authenticity, this replacement part is engineered to match the **original Mercedes-Benz specifications**, including the correct **cable routing, tensioning mechanisms, and folding dynamics**, allowing for a restoration that feels and operates just like the factory-installed component. Whether for a showroom-worthy restoration or a reliable daily driver, this window top assembly is the ideal choice for preserving the timeless elegance and driving pleasure of the legendary 190SL.

### **Pros and Cons of Buying a Mercedes-Benz 1216900059 Window Top (W121 190SL) Conversion**

#### **Overview**

The **Mercedes-Benz W121 190SL** is a classic roadster from the 1970s, and the **1216900059 window top conversion** (likely a soft-top or convertible top kit) is a common modification for owners who want to restore or upgrade their car s convertible functionality. Below is a detailed breakdown of the advantages and disadvantages of purchasing this part, followed by a conclusion and recommendation.

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### **Pros**

1. **Restores Convertible Functionality**

- If the original soft top is damaged, missing, or non-functional, this part allows the owner to fully convert the 190SL into a working roadster. This is a major selling point for enthusiasts who value the classic convertible experience.

2. **Improves Aesthetics and Value**

- A properly installed soft top enhances the car s appearance, making it look like a restored or near-new example. This can increase its resale value, especially in the collector market where fully functional convertibles are highly sought after.

3. **Compatibility with the W121 Platform**

- The **1216900059** part is a genuine or high-quality aftermarket replacement designed specifically for the W121 190SL. It fits the car s frame and mechanics correctly, reducing the risk of installation issues if sourced from a reputable supplier.

4. **Durability and Longevity**

- High-quality soft tops (especially those made from **vinyl or canvas with proper reinforcement**) are designed to last decades with proper care. This makes the investment worthwhile for long-term ownership.

5. **Enhances Driving Experience**

- The ability to lower the top on demand adds to the car s charm and usability, allowing owners to enjoy open-air driving without sacrificing weather protection when needed.

6. **Aftermarket Support and Customization**

- Many aftermarket suppliers offer additional features such as **electric conversion kits, improved seals, or reinforced frames**, which can further enhance the top s performance and longevity.

7. **Potential for DIY Installation**

- While professional installation is recommended, some owners with mechanical experience may attempt a DIY fit. This can save labor costs, though it requires patience and attention to detail.

---

### **Cons**

1. **High Cost**

- Genuine Mercedes-Benz soft tops for the W121 are expensive, often ranging between **$1,500 and $3,500 **, depending on condition and supplier. Aftermarket options may be cheaper but could lack durability or authenticity.

2. **Installation Complexity**

- Fitting a soft top requires precise alignment with the car s frame, window regulators, and cables. Improper installation can lead to **leaks, sagging, or difficulty in operation**, reducing the top s lifespan.

3. **Maintenance Requirements**

- **Cleaning and conditioning** (to prevent cracking or warping).

- **Lubricating tracks and cables** (to ensure smooth operation).

- **Checking for water damage or mold** (common in humid climates).

- Neglecting maintenance can lead to premature failure.

4. **Weight Considerations**

- A properly installed soft top adds **significant weight** to the car, which may slightly affect handling and fuel efficiency though this is usually negligible in a classic like the 190SL.

5. **Risk of Counterfeit or Low-Quality Parts**

- Buying from untrusted suppliers can result in **poorly made tops that sag, leak, or fail quickly**. Always verify the supplier s reputation before purchasing.

6. **Time-Consuming Process**

- Even with professional installation, the process can take **several hours to a full day**, depending on the car s condition and the installer s experience.

7. **Potential for Hidden Damage**

- **Rust or rot** in the frame or fabric.

- **Stretched or weakened cables** that may break during operation.

- **Misaligned tracks** causing uneven closure.

8. **Limited Availability of Genuine Parts**

- Original Mercedes-Benz soft tops are becoming harder to find, increasing the risk of paying premium prices for rare or restored examples.

---

### **Conclusion**

The **Mercedes-Benz 1216900059 window top conversion** is a worthwhile investment for owners of a **W121 190SL** who want to restore or upgrade their car s convertible functionality. The benefits such as **enhanced aesthetics, restored usability, and increased value** outweigh the drawbacks for most enthusiasts, provided the part is **properly sourced and installed**.

However, the **high cost, installation complexity, and maintenance demands** mean that this is not a decision to be taken lightly. Owners should **budget for professional installation, factor in long-term upkeep, and ensure the part is authentic** to avoid disappointment.

---

### **Recommendation**

1. **Verify the Part s Authenticity**

- Purchase from a **reputable supplier** (such as **Classic Conversions, ECS Conversions, or a trusted Mercedes specialist**) to avoid counterfeit or low-quality tops.

2. **Budget for Professional Installation**

- Unless you have **mechanical experience**, hire a **qualified classic car specialist** to ensure proper fitting and functionality.

3. **Consider a Full Restoration**

- If restoring the 190SL, pair the soft top with **other critical repairs** (e.g., rust treatment, suspension work) to maximize longevity and value.

4. **Maintain the Top Regularly**

- Follow a **cleaning and conditioning routine** to prevent cracking, and **inspect cables and tracks annually** to avoid sudden failures.

5. **Evaluate Alternatives**

- If the budget is tight, explore **aftermarket options** (e.g., **ECS or Classic Conversions kits**) that offer good quality at lower prices than OEM parts.

For the **serious 190SL owner** who values the convertible experience, the **1216900059 window top is a strong investment** but it requires **careful planning, budgeting, and maintenance** to ensure a smooth and long-lasting result. Those who prioritize **driving enjoyment and classic car authenticity** will find the benefits far outweigh the costs.

Details:

We combine shipping costs when possible. Fits Mercedes-Benz W121 190SL. This is a USED Small Window Hard Top often found on Early 190SL model's. The rear window is not broken but looks to be very worn.

This item is unable to be shipped via UPS or FedEx. The Top appears to have an upholstery fabric on the outside which was not original factory option. Part Number. This Hard Top can fit Late 190SL model's as well.

part #: 1216900059 prices

• $56.05-$4025.00

specifications sunrooconvertib:

• for models: 190sl
• for makes: Mercedes
• mpn: 1216900059
• type: Hard Top
• features: Removable
• vintage part: Yes
• universal fitment: No

general sunrooconvertib:

• Exterior Parts Accessories > Roofs, Tops Sunroofs > Hardtops, Roof Panels Parts
• condition: For parts or not working

offer sunrooconvertib:

• availability: In Stock
• started: March 6, 2026
• quantity: 1
• best offers: True
• sold: 0
• options: Ship-to-home

seller sunrooconvertib:

• city: Valencia, California
• # reviews: 13196
• rating: 99.3%

returns sunrooconvertib:

• policy: No Returns

payments sunrooconvertib:

• credit card: Discover
• wallet: Apple-pay
• other

shipping sunrooconvertib:

• cost: $600.00
• service: Flat Rate Freight
• type: Fixed
• class: Freight

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