MERCEDES 1262501402 Transmission Torque Converter Benz

( Manufacturer Part Number: 1262501402 ), ( Part Type: Torque Transmission Converter ), ( Manufacturer Warranty: 1 Month ), ( Universal Fitment: No ), ( Vintage Part: Yes ), ( Country Of Origin: Germany )

Review MERCEDES benz Oem Transmission Torque Converter fits R107 W107 380SL 380SLC 1981–1985

The **Mercedes-Benz 1262501402 R107/W107 Transmission Torque Converter** is a meticulously engineered component designed exclusively for the iconic **1981 1985 380SL and 380SLC** models, part of the legendary R107/W107 generation. This torque converter is a critical element of the **M116 5.0-liter V8 engine s automatic transmission system**, ensuring seamless power transfer while maintaining the sporty, responsive character for which these roadsters are renowned. Crafted to exacting Mercedes-Benz specifications, this unit features a **stamped steel housing** with precision-machined internal components, including a **stator, turbine, and impeller**, all engineered to optimize fluid dynamics and torque multiplication. The torque converter s **hydraulic coupling mechanism** allows for smooth engagement and disengagement of the transmission, reducing wear on the drivetrain while delivering the punchy acceleration that enthusiasts expect from the 380SL s powerful V8. Built to withstand the demands of high-performance driving, this torque converter is compatible with the **A40AM automatic transmission**, providing a reliable and efficient means of power delivery. Whether restoring a classic 380SL to its original glory or upgrading an existing system, this torque converter ensures that every shift is crisp, every launch is spirited, and the driving experience remains true to Mercedes-Benz s engineering legacy. Its compatibility with the **R107/W107 platform** makes it an essential part of any authentic restoration or performance modification, bridging the gap between the engine s raw power and the precision of the automatic transmission.

### **Pros and Cons of Buying a Mercedes-Benz 126.250.1402 (R107 W107) Transmission Torque Converter (1981 1985 380SL/380SLC)**

1. **Rarity and Collectibility** The R107 chassis (1981 1985) is one of the most sought-after Mercedes-Benz roadsters, especially the 380SL/380SLC models. A well-maintained example with an original torque converter is highly desirable among classic car enthusiasts, making it a strong investment for collectors.

2. **Originality and Authenticity** If this torque converter is genuine and part of an original transmission, it adds significant value to a restored or preserved R107. Aftermarket or rebuilt converters may not hold the same appeal.

3. **Performance Potential** The 380SL/380SLC s M117 3.8L inline-six engine is a smooth, reliable powerplant when properly maintained. A functioning torque converter ensures proper transmission engagement, which is crucial for drivability.

4. **Historical Significance** The R107 was Mercedes-Benz s last roadster before shifting focus to the SL (R121) in 1989. Owning a piece of this transitional era adds prestige for classic car owners.

5. **Potential for Restoration Value** If the torque converter is part of a complete, restored transmission, the car s resale value could increase significantly, especially if it remains in original condition.

6. **Compatibility with Classic Parts Market** The R107 s parts ecosystem remains strong, with aftermarket support for engines, transmissions, and torque converters. This makes maintenance and upgrades more accessible than on rarer models.

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1. **High Cost of Acquisition** Due to its rarity, a genuine torque converter (or a complete transmission with it) for an R107 380SL/380SLC can be expensive, often costing hundreds or even over a thousand dollars, depending on condition and demand.

2. **Potential for Wear or Failure** Torque converters, especially in older vehicles, can develop internal wear (e.g., clutch slippage, pump failure, or bearing issues). If this unit has been neglected, it may require rebuilding or replacement soon after purchase.

3. **Limited Availability of Specialists** Finding a mechanic experienced with R107 transmissions and torque converters can be difficult. Many classic car specialists focus on more common Mercedes models (e.g., W123, W140), so repairs may require extra effort or higher labor costs.

4. **Risk of Counterfeit or Rebuilt Units** The aftermarket for R107 parts is not as regulated as it is for modern vehicles. There is a risk of purchasing a "rebuilt" or non-genuine torque converter that may not perform as reliably as an original.

- **Torque converter clutch wear** (leading to slipping or delayed engagement).

- **Valve body failures** (causing shifting issues).

- **Seal leaks** (resulting in fluid loss and transmission damage).

A torque converter alone may not solve broader transmission problems.

6. **Maintenance and Fluid Requirements** Torque converters require proper transmission fluid (often ATF or a specific Mercedes-Benz formula) to function correctly. Neglecting fluid changes can accelerate wear, reducing longevity.

7. **Restoration vs. Drivability Trade-Off** If the torque converter is part of a restored transmission, the car may be more valuable as a static display piece than a fully drivable daily driver. Some owners prioritize authenticity over convenience.

8. **Insurance and Storage Costs** Classic Mercedes-Benz roadsters, especially in pristine condition, can be expensive to insure. Storage (garage vs. climate-controlled facility) also adds to ownership costs.

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Buying a **Mercedes-Benz R107 (1981 1985) torque converter (126.250.1402)** is a decision that hinges on whether you prioritize **collectibility, restoration potential, or functional reliability**. If you are a serious collector or restorer with the means to invest in a high-quality, original unit and the willingness to address broader transmission issues this purchase can be a rewarding addition to a classic car collection. However, if you are seeking a **practical, daily-drivable vehicle**, the cost, rarity, and potential maintenance challenges may outweigh the benefits.

- **Verify authenticity** (check part numbers, serials, and condition).

- **Inspect the entire transmission** (not just the torque converter) for wear or leaks.

- **Budget for professional restoration** if the unit is not in perfect condition.

- **Consider alternatives** (e.g., a rebuilt transmission from a trusted specialist) if the cost of an original converter is prohibitive.

**Proceed with caution and due diligence.** If you are buying for a **collection or restoration project**, a genuine torque converter is a worthwhile investment. If you are buying for **drivability**, prioritize a **fully serviced transmission** (including fluid changes, clutch inspection, and valve body checks) to avoid costly future repairs. Always consult with a **Mercedes-Benz specialist** familiar with R107 models before making the purchase.

Details:

Working condition Pulled off a Mercedes 107 Fluid in great shape see last picture Nothing wrong with it I part out old.

part #: 1262501402 prices

• $100.00-$220.96

specifications torquconv:

• for models: R107, W107, 380sl, 380slc
• for makes: Mercedes
• for years: 1981-1985
• mpn: 1262501402
• part type: Torque Transmission Converter
• manufacturer warranty: 1 Month
• universal fitment: No
• vintage part: Yes
• country of origin: Germany

payments torquconv:

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

seller torquconv:

• rating: 99.3%
• # reviews: 625
• city: Casa Grande, Arizona

general torquconv:

• Car Truck Parts Accessories > Transmission Drivetrain > Torque Converters
• condition: Used

offer torquconv:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: March 28, 2026
• quantity: 1

shipping torquconv:

• cost: $0.00
• carrier: USPS
• service: USPS Ground Advantage
• class: Standard
• type: Calculated
• transit: 4-10 Days

returns torquconv:

• policy: No Returns

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