CSF High-Performance Auxiliary Radiator – EZT Cooling Series

Upgrade your AMG's cooling system with this all-aluminum auxiliary radiator from CSF. Designed to improve both engine and charge-air cooling performance, this drop-in unit significantly increases capacity over OEM and resists heat soak under aggressive driving. Ideal for street builds, OEM replacements, or track setups running dual auxiliary radiators.

Key Features

• 2-row high-performance core featuring CSF’s B-Tube technology
• 6.5mm tall ultra-efficient fins with multi-louvered design for maximum heat transfer
• ~100% increase in core thickness over OEM (42mm vs. 26mm)
• 100% all-aluminum TIG-welded construction
• CNC-machined brackets and OEM-style “quick connect” inlet/outlet
• Includes detachable rock guard for added protection
• Multi-fit design – works on both left and right side (for vehicles with one or two aux radiators)
• True drop-in fit – no modifications required
• Leak- and pressure-tested individually
• Race-proven performance upgrade or factory-style replacement

OEM Cross Reference

• 099-500-05-01
• 099-500-53-03
• 099-500-59-03

Fitment

• 2017+ Mercedes-AMG GT (R190) – Left & Right – 2 per vehicle
• 2016–2017 Mercedes-AMG GT S (R190) – Left & Right – 2 per vehicle
• 2016–2020 Mercedes-Benz C63 AMG (W205) – 1 per vehicle
• 2015–2020 Mercedes-Benz C63 AMG S (W205) – Left & Right – 2 per vehicle
• 2016–2019 Mercedes-Benz GLE63 AMG (X292) – Left & Right – 2 per vehicle
• 2016–2019 Mercedes-Benz GLE63 AMG S (X292) – Left & Right – 2 per vehicle
• 2017–2019 Mercedes-Benz GLS63 AMG (X292) – Left & Right – 2 per vehicle

Note: Vehicles equipped with two auxiliary radiators will require a quantity of two.