The PLM Heat Exchanger Cooling Kit PLM-MSL55-HX-JP-WW is a complete cooling solution designed specifically for Mercedes-Benz SL55 AMG 5.5L supercharged models. Built to reduce intake air temps (IAT) and prevent heat soak, this plug-and-play kit improves cooling performance without requiring cutting or major modifications.

The PLM heat exchanger features a furnace-brazed, non-epoxied core, CNC billet aluminum necks, and 4000 square inches of fin surface for maximum cooling efficiency. Paired with a Johnson CM30 pump and Redline Water Wetter, this kit boosts coolant circulation and thermal performance.

VEHICLE FITMENT

• Mercedes-Benz SL55 AMG – 5.5L Supercharged

Have an E55 or CLS55? Click here for the correct kit.

KIT CONTENTS

• PLM Heat Exchanger for SL55 AMG

• Johnson Pump CM30 with wire harness

• Redline Water Wetter coolant additive

INSTALLATION NOTES

• Heat exchanger mounts using brackets designed for E55

• SL55 users must drill 2 holes in the bracket – no vehicle cutting required

• One port is on the driver side – longer hose included free with SL55 orders (mention in order notes)

• Basic hand tools required for installation

HEAT EXCHANGER SPECS

• Overall Length: 35.5"

• Core Size: 28.5" (L) × 5.5" (H)

• Core Thickness:

  • Standard: 2.5"

  • XL (optional): 3.0"

• Fluid Capacity: 1.8 liters

• Fin Area: 4000 in²

KEY FEATURES

• Reduces intake temps and combats heat soak

• 1.8L coolant capacity with high-efficiency fin core

• All-aluminum, TIG-welded construction

• CNC billet aluminum necks for precise, leak-free fit

• Johnson CM30 pump improves flow

• Redline Water Wetter boosts cooling system performance

• No cutting or modification to vehicle required