Upgraded Water Pump Pulley for M113 / M113K AMG

Why upgrade your water pump pulley? The stock pulley is heavy and large, creating unnecessary drag on the engine. Our lightweight CNC billet aluminum pulley reduces parasitic loss, spins the water pump faster at high RPM, improves coolant flow, and helps prevent belt slip — especially when paired with a belt wrap kit.

Key Features

• CNC billet aluminum construction for maximum strength and lightness
• 115mm diameter for optimal water pump speed
• Precision machined for perfect belt alignment
• Easy direct-fit installation — no modifications required
• Proudly manufactured in the USA

Why Upgrade?

• Reduces Parasitic Drag — Lighter pulley frees up horsepower
• Increases Coolant Flow — Spins the water pump faster at high RPM for better cooling
• Helps Prevent Belt Slip — Works perfectly with belt wrap kits under hard acceleration
• Slight Power Gain — Typically 3–8 hp depending on your setup
• Better High-RPM Cooling — Essential for large pulley upgrades, tunes, and track use

Fitment

• Mercedes-Benz E55 AMG
• Mercedes-Benz CL55 AMG
• Mercedes-Benz CLS55 AMG
• Mercedes-Benz S55 AMG
• Mercedes-Benz SL55 AMG
• Mercedes-Benz G55 AMG

Upgraded Water Pump Pulley for M113 & M113K AMG – Lightweight Billet Aluminum

Reduce drag, improve cooling, and unlock more power from your supercharged M113K.