Choosing the Right Charge Air Cooler vs. Remote Cooler for Engine Applications

When designing or upgrading a cooling system for industrial engines or gensets, one important decision is whether to use a charge air cooler or a remote cooler. While both serve essential roles in heat management, they offer different advantages depending on space, performance, and environmental conditions.

At IEA Cooling, we manufacture both engine-mounted and remote-mounted cooling solutions — including custom charge air coolers for tight spaces and remote coolers for systems where airflow flexibility is key. Here’s how to decide which one fits your needs.


Charge air cooler mounted on industrial genset engine

What Is a Charge Air Cooler?

A charge air cooler (also known as an intercooler) is designed to cool air after it has been compressed by a turbocharger or supercharger but before it enters the engine. This cooled, denser air helps increase engine efficiency and power output.

IEA’s charge air coolers are typically engine-mounted and integrated directly into the cooling package alongside radiators and aftercoolers. These compact solutions are ideal for applications with limited space and high power demands — such as generators, off-road vehicles, and construction equipment.

Benefits of Charge Air Coolers:

  • Integrated design with radiator and engine
  • Minimal footprint
  • Fast response and high efficiency
  • Suitable for compact and mobile systems

What Is a Remote Cooler?

Comparison of remote cooling system and charge air cooler layout

A remote cooler is a standalone cooling unit installed away from the engine, often mounted on a rooftop, skid, or frame. It uses fans to pull ambient air across a radiator core, cooling fluids like air, oil, or glycol-based mixtures.

IEA’s remote coolers are ideal when space or airflow near the engine is limited. They’re also preferred in environments where isolating heat from the engine compartment is important — such as in data centers, marine systems, or enclosed genset rooms.

Benefits of Remote Coolers:

  • Flexible installation location
  • Reduced engine bay heat
  • Scalable for large or multi-unit systems
  • Easier access for maintenance

Key Factors in Choosing the Right System

When deciding between a charge air cooler and a remote cooler, consider the following:

  • Available space: If your engine compartment is tight, a remote cooler may relieve some of that pressure.
  • Airflow control: Remote coolers allow more design freedom to direct airflow where it’s most effective.
  • Maintenance access: Remote systems can be easier to service without disturbing engine components.
  • Weight constraints: Charge air coolers are often lighter and better for mobile equipment.

At IEA, we work closely with OEMs and end users to design cooling systems that balance these needs. Whether you need an integrated package or a distributed cooling strategy, we build systems that are reliable, efficient, and engineered for your exact environment.

Proven Experience in Power Generation & Industrial Cooling

IEA Cooling has been a trusted radiator manufacturer for nearly 50 years, serving industries such as:

  • Power generation and backup gensets
  • Oil and gas
  • Construction and heavy-duty off-road vehicles
  • Data centers and AI infrastructure
  • Marine and remote industrial operations

Our charge air coolers and remote coolers are built to withstand extreme temperatures, vibrations, and harsh environmental conditions — ensuring consistent performance no matter where your system operates.

Engineered Cooling. Delivered to Spec.

From aluminum to copper-brass construction, every cooling component we build is tailored for performance, durability, and cost-efficiency. Whether you need a single replacement unit or a full system, our team delivers fast, accurate solutions backed by U.S.-based manufacturing and support.


Not sure which cooler fits your application best? Contact IEA Cooling to speak with a specialist who can help design a system around your exact needs.