MERCEDES 1262610318 Transmission Cover Benz 86-90
fits model: W126. make: Mercedes.
( Manufacturer Part Number: 1262610318 ), ( Type: Automatic Transmission ), ( Manufacturer Warranty: 1 Month ), ( Oe/oem Part Number: A1262610318 ), ( Country Of Origin: Germany )
Review MERCEDES benz 86-90 Transmission Case Cover Oem fits W126
The **Mercedes-Benz 1262610318 Transmission Cover** is a meticulously engineered, high-performance component designed exclusively for the iconic **W126 generation** of Mercedes-Benz sedans, spanning the model years **1986 through 1990**. This transmission cover, also known as the **bellhousing or torque converter housing**, serves as a critical interface between the engine and the automatic transmission, ensuring seamless power transfer while safeguarding internal components from contamination and wear. Crafted from **high-grade cast iron** and precision-machined to Mercedes-Benz s exacting specifications, this cover is built to withstand the rigorous demands of both daily driving and high-performance applications. Its robust construction features a **smooth, seamless surface** that minimizes friction and vibration, contributing to a quieter, more refined driving experience. The cover is equipped with a **tight-fitting gasket interface**, designed to create an airtight seal that prevents fluid leaks and maintains optimal transmission performance. For added durability, the mounting points are reinforced with **heavy-duty bolts and alignment studs**, ensuring proper alignment with the transmission and engine crankshaft. Whether restoring a classic W126 sedan to its original glory or upgrading an existing vehicle for enhanced reliability, this **OEM-replacement transmission cover** delivers the same level of precision and quality that Mercedes-Benz engineers originally intended. Its compatibility with **M117, M119, and M110 engine variants** makes it a versatile choice for enthusiasts and mechanics alike, ensuring a perfect fit for models ranging from the **220E to the 560SEL**. With its **rust-resistant finish and long-lasting construction**, this part is not just a functional replacement but a testament to Mercedes-Benz s legacy of engineering excellence.
### **Pros and Cons of Buying a Mercedes-Benz W126 Transmission Cover (Part Number 1262610318, 1986 1990 Models)**
#### **Pros:**1. **Authentic Fit and Finish** This is an original equipment (OEM) or high-quality aftermarket part designed specifically for the W126 platform, ensuring proper alignment and sealing. It will match the factory appearance and fit without modifications.
2. **Prevents Fluid Leaks** A worn or damaged transmission cover can lead to fluid leaks, which damage the transmission and reduce performance. Replacing it ensures a tight seal, maintaining proper lubrication and cooling.
3. **Improves Transmission Reliability** A failing cover can allow debris to enter the transmission, accelerating wear on gears and internal components. A new cover reduces contamination risks.
4. **Prevents Overheating** The cover helps dissipate heat from the transmission fluid. A damaged or missing cover can lead to overheating, shortening the transmission s lifespan.
5. **Easier Maintenance Access** Some aftermarket covers are designed with improved access for fluid changes or inspections, making future servicing more convenient.
6. **Aesthetic Consistency** If you value the original look of your W126, this part ensures the vehicle retains its classic appearance without aftermarket modifications.
7. **Potential Long-Term Cost Savings** Addressing a failing cover early prevents more expensive transmission repairs down the line, such as fluid leaks, gear damage, or complete transmission failure.
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#### **Cons:**1. **Cost** OEM or high-quality aftermarket transmission covers for a W126 can be expensive, especially if sourced from specialty Mercedes-Benz suppliers. Prices may range from **$150 $300 **, depending on the brand and availability.
2. **Installation Complexity** Removing and replacing the transmission cover requires disassembling parts of the engine bay, including the air intake, battery, and possibly the radiator or cooling components. This may necessitate professional installation, adding labor costs.
3. **Availability and Lead Times** Finding the exact part number (1262610318) may be challenging, particularly for older models. Some suppliers may carry discontinued stock, leading to delays. Aftermarket alternatives might not always match the OEM fit perfectly.
4. **Potential for Counterfeit Parts** If purchasing from non-reputable sellers, there is a risk of receiving a low-quality or fake part that fails prematurely. Always buy from trusted Mercedes-Benz specialists or authorized dealers.
5. **Additional Wear Indicators** If the transmission cover is being replaced due to leaks, it may indicate other underlying issues (e.g., worn seals, a failing transmission) that require attention. A thorough inspection of the transmission and surrounding components is advisable.
6. **Time-Consuming Repair** For DIYers, the job can be labor-intensive, requiring patience and mechanical skill. Improper installation could lead to further damage or leaks.
7. **Opportunity Cost** If the transmission itself is failing, replacing just the cover may not be a long-term solution. In some cases, budgeting for a full transmission rebuild or replacement might be more prudent.
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### **Conclusion**
Replacing a damaged or worn Mercedes-Benz W126 transmission cover (1262610318) is a **necessary preventive measure** to avoid more severe transmission damage. The benefits such as preventing leaks, improving reliability, and maintaining performance outweigh the drawbacks for most owners, provided the part is sourced correctly and installed properly.
However, if the transmission is already exhibiting symptoms of failure (e.g., rough shifting, fluid leaks, or overheating), addressing the cover alone may not be sufficient. In such cases, a **comprehensive transmission inspection** (or rebuild) should be considered to avoid recurring issues.
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### **Recommendation**
1. **Verify the Need** Confirm that the cover is indeed the source of the problem (e.g., visible cracks, leaks, or warping). If the transmission is symptomatic of deeper issues, prioritize those repairs.
2. **Source the Part Carefully**
- Purchase from **authorized Mercedes-Benz suppliers** or reputable aftermarket brands (e.g., ACDelco, Febi Bilstein, or local Mercedes specialists).
- Ensure the part matches the **exact model year and engine type** (e.g., M117, M119) of your W126.
- Check for **warranty coverage** if buying from a dealer.
3. **Professional Installation** Unless you have experience with Mercedes transmissions, **hire a qualified mechanic** to ensure proper sealing and alignment. Improper installation can lead to leaks or damage.
4. **Consider a Transmission Fluid Change** While replacing the cover, flush the transmission fluid to remove contaminants and extend the life of the new part.
5. **Budget for Contingencies** If the transmission shows signs of wear, allocate extra funds for a **transmission service** or rebuild to avoid future failures.
**Final Verdict:** If the transmission cover is the primary issue, replacing it is a **worthwhile investment** to protect your W126 s drivetrain. However, always assess the broader health of the transmission before proceeding. For most owners, the long-term reliability gains justify the cost and effort.
Details:
Issue during delivery or handling. Important Note on Reconditioned Rims: This is an OEM Original Equipment Manufacturer part. Shipping Costs FREE Domestic on most items. Used parts may show normal signs of wear and tear consistent with age prior use.
Chassis: W126. Minor scratches. SHIPPING DETAILS: All parts are carefully packaged using protective materials to reduce the risk of transit damage. Minor Blemishes.
Any relevant specifications or modifications. OEM Mercedes parts Fast shipping Responsive support. Cosmetic condition and finish characteristics are described in the listing shown photos. Please review the condition section above and all listing photos carefully.
Tested for functionality when applicable. 86-90 Mercedes W126 Transmission Case Cover OEM: OEM Part - Tested Ready for Installation. Surface wear and tear.: Manufacturer Part #:.
Once the package is handed off to carrier, delivery conditions are outside our direct control. Cleaned and/or prepared for installation. Please review all images and item details carefully before purchase. Order Processing Orders are processed immediately after purchase and cannot be canceled.
Inspected for major defects. These are cosmetic characteristics ONLY and DO NOT affect the performance or functionality of part. These rates reflect packaging, handling, and carrier costs required to safely ship oversized automotive items.
part #: 1262610318 price
- $79.00
specifications autotransmissionsgo:
- for models: W126
- for makes: Mercedes
- mpn: 1262610318
- type: Automatic Transmission
- manufacturer warranty: 1 Month
- oe/oem part number: A1262610318
- country of origin: Germany
offer autotransmissionsgo:
- quantity: 1
- started: April 18, 2026
- sold: 0
- availability: In Stock
- best offers: True
- options: Ship-to-home
shipping autotransmissionsgo:
- type: Fixed
- service: Expedited
- transit: 4-9 Days
- cost: $0.00
- class: Expedited
payments autotransmissionsgo:
- wallet: Google-pay
- other
- credit card: Discover
seller autotransmissionsgo:
- rating: 100.0%
- city: West Palm Beach, Florida
- # reviews: 803
general autotransmissionsgo:
- condition: Used
- Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission
returns autotransmissionsgo:
- paid by: Seller
- time: 30 Days
- policy: Returns Accepted
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