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Cooler CE4

The CE4 line delivers efficient passive cooling for heavy-duty combustion engines in off-highway and on-highway vehicles.

Each 4-fan unit combines a charge air cooler and radiator in one compact frame, ensuring independent cooling of both circuits. With long-life brushless fans, tube-and-fin technology, and plug-and-play integration, the CE4 is a proven solution for OEMs seeking reliable, low-maintenance engine cooling.

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Overview

The CE4 is Grayson’s 4-fan combustion engine cooler, designed to manage coolant and intake air temperatures for medium-to-heavy duty ICE vehicles. Each module integrates a radiator and charge air cooler with independent isolation, ensuring reliable performance in dusty or vibration-heavy environments.

Equipped with 24 V DC brushless fans rated up to 30,000 hours, the CE4 delivers consistent airflow and features a reverse-fan cleaning function. Compared to hydraulic systems, it reduces fuel consumption, noise, and emissions. Optional CAN-based fan control, stainless-steel frames, and Grayson’s 40 years of cooling expertise make it a durable, OEM-ready solution.

Available off-the-shelf or customisable, Grayson calculates ambient limits, flow rate, heat rejection, and coolant temperature to deliver reliable, application-specific thermal performance.

Features

Our coolers are designed with features that support efficient heat rejection, durability, and easy integration into vehicle systems.

  • Dual heat exchangers: Radiator and charge air cooler for independent and efficient cooling
  • 4 × 24V DC brushless fans: Long-life operation, reduced noise, and consistent airflow
  • Reverse fan function: Clears debris for reliable operation in dusty environments
  • Tube-and-fin design with dimpled fins: Lightweight, durable, and reduces clogging
  • Optional V3 CAN controller: Enables smart, demand-based fan speed control
  • Plug-and-play system: Includes wiring harness, AV mounts, and controller for easy integration
Technical

Each technical component contributes to precise temperature regulation, ensuring consistent system performance and energy efficiency.

  • Fans: 4 × 24V DC
  • Heat exchangers: Radiator + charge air cooler
  • Fan life: Up to 30,000 hours
  • Cooling core: Tube-and-fin with dimpled or louvered fins
  • Framework: Mild steel (Carbon steel or stainless steel optional)
  • Controller: Optional V3 CAN controller
Fan Life

30,000 hours

Reliable, low-maintenance operation for long service periods.
Cooling Design

Dual heat exchangers

Dual circuits (radiator + charge air cooler) – stable performance across varying engine loads.
Fuel Efficiency

Fan Options

Electric fans run only when required, reducing fuel costs.
Fan Configuration

Electric or Hydraulic

Available with 24V DC brushless fans or customisable for hydraulic-driven system.
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Compatible Applications

Product Benefits​

Discover why on- and off-highway OEMs rely on Grayson’s CE4 line of combustion engine coolers to deliver critical engine cooling.

Fuel-saving design

Up to 10% efficiency gain over hydraulic-driven systems.

Lower noise & emissions

Supports Euro 6 compliance.

Reliable cooling

Independent radiator and charge air cooler management.

Flexible configuration

Configurable cooler design based on your precise thermal requirements.

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Our Capabilities

Calculating the right cooler for your fuel cell stack

Grayson works with OEMs to select or design coolers based on ambient limits, coolant flow, heat rejection, and target temperature. Learn More

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Discover More About Grayson

For more than four decades, Grayson Thermal Systems has delivered innovative thermal management solutions to vehicle sectors across the globe. Our expertise and support help ensure consistent efficiency and dependable system performance.