88mm Replacement Supercharger Pulley for Mercedes Benz AMG (2003-2007) with 5.5L Engine
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Ultimate Performance 88mm Supercharger Pulley Upgrade & Replacement | Mercedes-Benz AMG M113K
Replaces OEM Part #: A1130900044 | Engine Fitment: M113K V8 Kompressor
Fix the Chirp. Increase the Power. Save Money.
Is your factory supercharger pulley making noise, wobbling, or failing? The stock AMG electromagnetic clutch pulley is notorious for bearing failure and high replacement costs. The Ultimate Performance 88mm Pulley is the definitive heavy-duty solution.
Engineered with superior billet components and upgraded bearings, this pulley is 35% lighter and 2mm smaller than stock. It provides a natural reliability upgrade while offering a slight bump in horsepower and torque—without requiring a software tune or a new belt.
Key Features & Benefits
- ✓ Heavy-Duty Construction: Built with higher-grade springs, bearings, and billet parts to outlast the failure-prone OEM unit.
- ✓ Value: Superior durability for 1/3 the price of a dealer replacement.
- ✓ Performance Boost: At 88mm (vs. ~90mm stock), it provides a modest power increase by spinning the supercharger slightly faster.
- ✓ No Tune Required: Safe to bolt on and drive immediately.
- ✓ Longevity: Weighs 35% less than the factory steel pulley, reducing parasitic drag and rotational mass.
- ✓ Plug & Play: Uses your original OEM belt and mounting hardware.
Technical Specifications
Diameter: 88mm
Tune Needed: No
Engine: 5.5L / 5.4L V8 Supercharged
Verified Vehicle Fitment Guide
IMPORTANT: This part is ONLY for AMG models equipped with the M113K Kompressor (Supercharged) engine.
| Model | Chassis Code | Year Range | Engine |
|---|---|---|---|
| Mercedes-Benz E55 AMG | W211 | 2003 – 2006 | M113K |
| Mercedes-Benz SL55 AMG | R230 | 2003 – 2008 (2002 International) | M113K |
| Mercedes-Benz CLS55 AMG | C219 | 2006 (2004–2005 International) | M113K |
| Mercedes-Benz S55 AMG | W220 | 2003 – 2006 (2002 International) | M113K |
| Mercedes-Benz CL55 AMG | C215 | 2003 – 2006 | M113K |
| Mercedes-Benz G55 AMG | W463 | 2005 – 2011 (2004 International) | M113K |
Common Questions
Will this 88mm supercharger pulley fit my Mercedes-Benz AMG?
It is built specifically for Mercedes-Benz AMG models equipped with the supercharged 5.4L / 5.5L M113K V8 Kompressor engine, including the E55 AMG (W211, 2003-2006), SL55 AMG (R230, 2003-2008 US / 2002 international), CLS55 AMG (C219, 2006 US / 2004-2005 international), S55 AMG (W220, 2003-2006 US / 2002 international), CL55 AMG (C215, 2003-2006), and G55 AMG (W463, 2005-2011 US / 2004 international), replacing OEM part number A1130900044.
Do I need an ECU tune after installing this pulley?
An ECU software tune is not required. Because the 88mm diameter is only 2mm smaller than the factory ~90mm pulley, it is safe to bolt on and drive immediately on the stock calibration.
Does this pulley require a different drive belt or mounting hardware?
It is a direct plug-and-play replacement that uses your original OEM supercharger belt and factory mounting hardware.
How does this pulley compare to the factory Mercedes A1130900044 pulley?
It uses a heavy-duty billet steel and aluminum hybrid construction with upgraded bearings and springs, weighing 35% less than the factory steel unit to reduce rotational mass while spinning the supercharger slightly faster.
Will this fit a naturally aspirated 55 AMG model like the C55 or CLK55?
This pulley is designed exclusively for models equipped with the supercharged M113K Kompressor V8 engine.
Fitment
Fitment
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