Under Drive Crank Pulley Mercedes- Benz C63 AMG 6.2L Agency Power

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The Mercedes Benz C63 AMG is a beast already with its V8 stuffed into the small C-Series chassis. Making 450 horsepower stock, this car is no slouch. But with the help of Agency Power, we can improve throttle response, horsepower, and torque with our under drive crank pulley. How is this accomplished? This is done easily using precision CNC machining and detailed CAD design to create a pulley that is lighter weight and underdriven. Rotational weight typically has a factor of 3. Even the smallest static weight can have improvements. When the pulley is lighter, the engine crank does not have to turn as hard. When we also make the pulley a smaller diameter the engine pumps out even more power because of the pulley size.

The new Agency Power under drive crank pulley is made of high strength 4140 Steel with an Anodized Aluminum outer ring for a sleek OEM look. This pulley uses a rubber core to ensure proper engine harmonics and dampen vibration. The diameter is 15 percent smaller than the OEM pulley with weight saving of 1.3 lbs over stock. The acceleration gains are apparent immediately. The kit includes new belt and new crankshaft bolt. Pair this pulley with our tuning, header, and exhaust system for optimal results!

  • Improved Throttle Response
  • Improved Horsepower and Torque
  • Approximate Gains: 10-20hp andamp; 10-15ft/ lbs
  • CNC Machining
  • Lighter Weight
  • High Strength 4140 Steel
  • Anodized Aluminum Outer Ring
  • Rubber Core
  • 15 percent Smaller
  • Weight Saving of 1.3 lbs


  • New Belt
  • New Crankshaft Bolt
  • Under Drive Crank Pulley


  • Mercedes- Benz C63 AMG 6.2L 2008-2014

Agency Power offers ultra-high quality performance products & accessories for all types of vehicles. From exotic cars to import tuners, Agency Power offers what most enthusiasts & tuners are searching for.

Installation Notes:

Professional installation is required.


Sold as: Kit

More Information
BrandAgency Power
Part NumberAP-C63-130
Shipping MethodUPS/FedEx/USPS Ground
AvailabilityNormally ships within 1-2 business days.
California Prop 65 Warning

  This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or reproductive harm. For more information, visit https://www.p65warnings.ca.gov/

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