Performance Torque Converter for Mercedes Benz E-Class CLS-Class CL-Class S-Class SL-Class G-Class E55 CLS55 CL55 S55 SL55 G55 (2003-2011) 5.5L

High-Stall Performance Torque Converter for 2003-2011 Mercedes Benz AMG 55 Series (W211, C219, C215, W220, R230, W463)

What it Does: The Performance Torque Converter upgrades fluid coupling dynamics on 2003-2011 Mercedes Benz AMG 55 models to deliver a responsive 3000 RPM flash stall speed and eliminate off-idle lag without sacrificing lockup efficiency.

The Stock Mercedes Benz 722.6 Torque Converter Limitations

The factory torque converter paired with the supercharged M113K engine utilizes a conservative stall speed (approximately 1800-2200 RPM) tailored for gradual, low-load engagement rather than aggressive acceleration. When subjected to modified pulley ratios, increased boost levels, and aftermarket tuning, the factory single-friction lockup clutch is prone to thermal degradation and high-load slip. Furthermore, the OEM converter’s fluid fin geometry restricts low-end torque multiplication, leaving the heavy W211, W220, and W463 chassis sluggish out of the hole prior to full boost onset.

The Engineering Solution

Engineered for high-torque applications, this 278mm (11-inch) high-performance assembly features reinforced furnace-brazed internal impellers and heavy-duty industrial thrust bearings to resist hydraulic deflection under severe launch loads. Internal modifications optimize stall speed to 3000 RPM, allowing the supercharged 5.5L M113K V8 to instantly reach peak torque output upon initial hit. A high-capacity multi-disk lockup clutch replaces the failure-prone factory unit, providing positive mechanical lockup under wide-open throttle while maintaining smooth, slip-free low-speed drivability through the 722.6 5-speed automatic transmission.

What's Included

• 1 x 3000-stall performance torque converter as shown

Technical Specifications

Compatibility

• 2003-2008 Mercedes Benz E-Class E55 AMG 5.5L (W211)
• 2003-2008 Mercedes Benz CLS-Class CLS55 AMG 5.5L (C219)
• 2003-2008 Mercedes Benz CL-Class CL55 AMG 5.5L (C215)
• 2003-2008 Mercedes Benz S-Class S55 AMG 5.5L (W220)
• 2003-2008 Mercedes Benz SL-Class SL55 AMG 5.5L (R230)
• 2005-2011 Mercedes Benz G-Class G55 AMG 5.5L (W463)

Frequently Asked Questions & Fitment Warnings

Does this fit the W211, C219, C215, W220, R230, and W463 E-Class, CLS-Class, CL-Class, S-Class, SL-Class, and G-Class?

Yes, this is a direct fit for the 2003-2011 Mercedes Benz AMG 55 platforms equipped with the supercharged M113K 5.5L V8 and 722.6 5-speed automatic transmission. Does not fit naturally aspirated 5.5L M113 engines or vehicles equipped with the 722.9 7-speed transmission.

Is a transmission fluid service required during installation?

Yes, swapping the torque converter requires a full fluid drain, filter replacement, and refill using Mercedes Benz MB 236.14 approved automatic transmission fluid.

The Mercedes Benz AMG Caliber

Retain factory-level electronic integration without triggering Transmission Control Module (TCM) fault codes while gaining the thermal resilience, instantaneous launch characteristics, and mechanical clamp required for modified high-torque European platforms.