fits model: C300, C350. make: Mercedes. year: 2008–2014.

( Manufacturer Part Number: 2720100514 ), ( Part Type: Oil Seal Cover Crankshaft Plate ), ( Manufacturer Warranty: 3 Months ), ( Vintage Part: No ), ( Country Of Origin: Germany )
The **Mercedes-Benz 2720100514 Rear Crankshaft Oil Seal Cover Plate** is a precision-engineered component designed exclusively for the **W204 C300 and C350 (2008 2014) models**, ensuring a flawless seal between the rear crankshaft and the transmission housing. Crafted from high-grade **cast aluminum alloy**, this cover plate is engineered to withstand the rigorous demands of high-performance driving while maintaining optimal oil retention and preventing leaks. Its robust construction features a **tight-fitting design** that aligns seamlessly with the crankshaft seal, minimizing wear and tear on the rubber gasket over time. The plate s **smooth, machined surface** ensures a consistent seal, reducing the risk of oil contamination in the transmission or engine bay, which is critical for preserving the longevity of both systems. This part is a direct-fit replacement, eliminating the need for modifications or adapters, and is compatible with both **M271 7G-Tronic automatic transmissions** and **M271 7G-DCT dual-clutch transmissions** found in these vehicles. Ideal for mechanics performing **rear main seal replacements, transmission services, or oil leak repairs**, this cover plate is a must-have for maintaining the integrity of the powertrain in these sophisticated Mercedes-Benz models. Its **durable construction and precise fit** make it a reliable choice for both professional technicians and discerning DIY enthusiasts seeking to uphold the performance and reliability of their W204 C-Class vehicles.
### **Pros and Cons of buying a Mercedes-Benz 2720100514 Rear Crankshaft Oil Seal Cover Plate (08-14 C300/C350)**
#### **Pros:**1. **Direct Fitment** This part is specifically designed for the **Mercedes-Benz C300/C350 (2008 2014)** models, ensuring compatibility without modifications. It is a **direct replacement** for the original rear crankshaft oil seal cover plate, which reduces the risk of installation issues.
2. **Quality and Durability** Mercedes-Benz parts, even aftermarket or OEM-equivalent replacements, are generally built to high standards. This part should provide **long-lasting protection** for the rear main seal, reducing the likelihood of oil leaks over time.
3. **Prevents Oil Leaks** The primary function of this cover plate is to **seal the rear crankshaft area**, preventing oil from leaking into the transmission or engine bay. A failing seal can lead to **costly transmission damage**, so replacing it proactively can save money in the long run.
4. **Easier Maintenance** Unlike some aftermarket parts that may require additional gaskets or sealants, this component is designed to **install straightforwardly** with the proper tools. It often comes with necessary hardware (bolts, washers) for a complete replacement.
5. **Compatibility with Common Issues** Many **C300/C350 owners** experience rear main seal leaks, especially around the **crankshaft pulley area**. This part is a **common fix** for this issue, making it a reliable solution if you ve noticed oil buildup or leaks in that region.
6. **Warranty and Return Options** Purchasing from a **reputable seller** (such as an authorized dealer, Amazon, or a trusted auto parts retailer) may include **warranty coverage** or easy returns if the part is defective.
7. **Cost-Effective Long-Term Solution** While the upfront cost may seem high, replacing the seal cover plate is **far cheaper** than dealing with **transmission damage, crankshaft wear, or engine contamination** from prolonged oil leaks.
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#### **Cons:**1. **Potential Counterfeit Parts** If buying from an **unverified seller**, there is a risk of receiving a **fake or low-quality replica**. Counterfeit parts may fail prematurely or not fit correctly, leading to **further damage or leaks**.
2. **Installation Complexity** While the part itself is straightforward, **removing the old cover plate** may require **disassembling parts of the engine bay**, such as the **crankshaft pulley, timing belt cover, or oil pan**. If not done carefully, **damage to surrounding components** (e.g., gaskets, bolts) could occur.
3. **Additional Costs** Beyond the part itself, you may need to purchase:- **New bolts** (if old ones are stripped)
- **Sealant or gasket maker** (for a proper seal)
- **Labor costs** (if not doing it yourself)
- **Replacement of other worn components** (e.g., rear main seal, oil pan gasket)
4. **Mixed Reviews on Aftermarket Quality** Some **non-OEM replacements** may not match the **precision of the original part**, leading to **minor leaks or fitment issues**. Always check **customer reviews** before purchasing.
5. **Time-Consuming DIY Job** If you re not experienced with **Mercedes engine work**, this repair can take **several hours** to complete properly. Rushing may result in **improper sealing or misalignment**.
6. **Possible Hidden Damage** If the **rear main seal itself is failing**, replacing just the cover plate may not fully solve the issue. A **full rear main seal replacement** might be needed, increasing costs.
7. **Limited Availability of Original Parts** While this part is still in production, **OEM stock may be harder to find** than aftermarket alternatives, which could affect pricing and lead times.
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### **Conclusion**
The **Mercedes-Benz 2720100514 rear crankshaft oil seal cover plate** is a **reliable and necessary part** for preventing oil leaks in the **C300/C350 (2008 2014)** models. It is a **direct-fit solution** that, when installed correctly, can **extend the life of your engine and transmission** by maintaining proper sealing.
**The biggest advantages** are its **specific fitment, durability, and preventive benefits**, while the **main drawbacks** revolve around **potential counterfeit parts, installation difficulty, and additional costs** if not prepared properly.
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### **Recommendation**
1. **Buy from a Trusted Source** Purchase from **authorized Mercedes-Benz dealers, Amazon, RockAuto, or reputable aftermarket suppliers** (e.g., Fel-Pro, Duralast) to avoid counterfeit parts.
2. **Check for Genuine vs. Aftermarket**
- **OEM (Original Equipment Manufacturer)** parts are the **most reliable** but may be pricier.
- **Aftermarket brands like Fel-Pro, Duralast, or ATE** offer **high-quality alternatives** at a lower cost. Look for **positive reviews** and **warranty coverage**.
3. **Prepare for Installation**
- Gather **new bolts, sealant, and tools** (socket set, torque wrench, pry bar).
- Consider **watching a step-by-step installation video** (e.g., from **ChrisFix, Haynes Manual, or Mercedes-Benz forums**) to avoid mistakes.
- If unsure, **consult a mechanic** for professional installation.
4. **Inspect for Additional Wear** While replacing the cover plate, **check the rear main seal, oil pan gasket, and crankshaft pulley** for signs of damage. Replace any **compromised components** to prevent future leaks.
5. **Budget for Potential Extras** If this is your first time doing this repair, **account for unexpected costs** (e.g., new bolts, extra sealant, or a helper if the job is complex).
6. **Consider Professional Help if Needed** If you re **not comfortable with engine work**, a **trusted Mercedes specialist** can ensure a **proper, leak-free installation** for around **$200 $400 in labor**, depending on location.
### **Final Verdict:** **Worth the purchase if:**You have **oil leaks near the rear crankshaft area**.
You re **preventing a larger transmission or engine issue**.
You **buy from a reputable seller** and **prepare properly for installation**.
**Avoid if:**You **can t confirm the part s authenticity**.
You **don t have the time or tools** for a proper DIY job.
You **ignore other failing components** (e.g., rear main seal).
**Best Approach:**- **Buy the part from a trusted supplier.**
- **Follow a detailed guide or seek professional help if needed.**
- **Inspect related components** to ensure a **complete, long-lasting fix.**
This replacement is a **cost-effective way to prevent serious engine damage**, making it a **smart investment** for your C300/C350.
Please refer to pictures for item condition.