PLM Heat Exchanger Cooling Kit PLM-ME55-HX-JP-WW – Fits Mercedes E55 / CLS55 AMG

The PLM Heat Exchanger Cooling Kit PLM-ME55-HX-JP-WW is a complete cooling solution for Mercedes-Benz E55 and CLS55 AMG supercharged 5.5L engines. Designed for bolt-on installation, this all-in-one kit dramatically reduces intake air temperatures (IAT), helping you maintain horsepower and engine reliability under extreme driving conditions or increased boost.

The PLM heat exchanger features a non-epoxied furnace-brazed core, CNC-machined billet aluminum necks, and a massive 4000 square inches of fin surface area with 1.8 liters of fluid capacity. The included Johnson CM30 electric pump with plug-and-play harness improves coolant circulation, and the Redline Water Wetter enhances thermal efficiency even further.

VEHICLE FITMENT

• Mercedes-Benz E55 AMG – 5.5L Supercharged

• Mercedes-Benz CLS55 AMG – 5.5L Supercharged

Note for SL55 owners: Click here to view the correct heat exchanger for SL55 applications.

KIT CONTENTS

• PLM Heat Exchanger for E55/CLS55 AMG

• Johnson Pump CM30 with wiring harness

• Redline Water Wetter (coolant additive)

INSTALLATION NOTES

• E55 AMG: Direct bolt-on fit

• CLS55 AMG: Brackets require 2 new holes drilled—no modification to the vehicle

• Basic hand tools required for install

• No cutting or permanent changes needed

HEAT EXCHANGER SPECS

• Overall Length: 35.5"

• Core Size: 28.5" (L) × 5.5" (H)

• Core Thickness: 2.5" (Standard) or 3.0" (XL optional)

• Fluid Capacity: 1.8 liters

• Fin Surface Area: 4000 in²

KEY FEATURES

• Complete plug-and-play cooling upgrade

• Helps reduce IAT and combat heat soak

• 100% TIG-welded aluminum construction

• CNC billet necks for leak-free, precise fit

• Improved coolant circulation with CM30 pump

• Maximized heat dissipation with Water Wetter additive