Engine Cooling Systems

API Heat Transfer is your global source for engine cooling solutions. We’re equipped to offer unparalleled engine cooling performance to meet the rigorous requirements of mobile and industrial customers worldwide.

We offer an array of internal and external fin configurations that produce some of the most efficient air-cooled heat exchange cores in the industry, so your engine has more power to perform, even under the harshest conditions.

We focus our engineering expertise on the markets you serve. By understanding your customer applications, we’re able to offer a broad spectrum of components and complete engine cooling systems designed to fit the needs of engine markets across the world.

Our technologies.

API Heat Transfer offers the broadest, most complete air-cooled product lines available.

  • CAB or vacuum-brazed aluminum
    • Bar-plate
    • Micro-channel
    • Tube and header
    • TBAR
  • Copper-brass
    • Mechanical-bond
    • Soldered
    • Bolted tank

Airtech PCR

When warm, dry air is critical to the manufacturing process, air dryers are often installed as part of the plant’s compressed air system. One of the most common designs is a non-cycling direct expansion refrigerated air-dryer. API Heat Transfer has developed the PCR, or pre-cooler, cooler, reheater, designed specifically to meet the needs of the refrigerated air dryer market.

The PCR is a compact multi-section all-aluminum heat exchanger featuring a brazed bar & plate design. The PCR pre-cools the incoming air using the cold air exiting the refrigerant section. It then final cools the air in the refrigerant section at which point the air stream enters a separation chamber to allow the condensed moisture to fall out. Since the air is reheated in the regeneration section, the final humidity remains below 25%.

API Heat Transfer makes a range of standard sizes or can custom design specific range of PCRs to meet the demands of high-volume OEMs.

Standard model range

  • Models 1 through 6

Standard capacities

  • 76 SCFM to 600 SCFM

Integral separator

  • Optional

Power Converter Coolers

API Heat Transfer power converter coolers are a line of our Airtech Fan-Cooled Heat Exchangers, ideally suited for the cooling of wind turbine power conversion equipment. Our conversion coolers prevent inlet temperatures from exceeding maximum recommendations to ensure safe and efficient operation.

Conversion coolers feature our vacuum brazed all-aluminum construction, resulting in a bonded unitary core for unparalleled performance and cost-effectiveness in a rugged, compact, and lightweight package. Plus, our array of internal and external fin configurations allow us to select the right combination to maximize heat transfer while minimizing pressure drop, ensuring suitability for the cooler’s operating environment.

Parallel Flow Condensers

API Heat Transfer is a major supplier of all aluminum parallel flow condensers using extruded tubes. Brazed aluminum provides highly efficient, robust designs using lightweight all aluminum materials.

Custom Oil Coolers

Oil cooling requirements vary widely depending on the type of equipment and duty cycle required. We’ve specially selected fin and tube options to provide the exact performance and durability the application calls for. Whether its high viscosity start up or full temperature operation, our brazed aluminum oil coolers keep it cool. We carefully select each oil cooler to be compatible with your system and each product is carefully designed to provide you the best combination of heat transfer and pressure drop.

Oil Cooler Technologies


We’ve identified the best selection of hot and cold fin combinations to provide the ultimate in flexibility and provide the best heat transfer performance in the market.

  • Highly flexible design options
  • Enhanced internal fin geometries for superior cooling
  • Wide variety of hot fins to balance internal pressure drop
  • High-efficiency louvered fins for superior heat rejection
  • Wide variety of debris resistant non-louvered fins
  • Specially designed extruded tanks withstand high pressures
  • Ideal for low viscosity fluids
  • Welded tanks for a long leak-free life
  • Integral bypass relief valves


Our patented TBAR replaces hot fins and bars with a single extruded tube for increased product durability.

  • Highly flexible design
  • Patented tube-to-bar joint ensures consistent brazing
  • Extruded tubes provide unrivaled durability & fewer leak paths
  • High-efficiency louvered fins for enhanced heat rejection
  • Debris resistant non-louvered fins
  • Specially designed extruded tanks withstand high pressures
  • Welded tank to core for a long leak-free service life
  • Zinc-Infused aluminum cores for unrivaled corrosion protection
  • Low oil side pressure drop
  • Stands up to heavy pressure-cycle loads & pressure spikes
  • Ideal for high viscosity fluids
  • Integral bypass relief valves


  • Robust and flexible design
  • Louvered and non-louvered air-side fins are available
  • Efficient surface to maximize heat rejection


  • Compact designs fit inside radiator bottom tanks for transmission oil cooling
  • Available in stainless steel and aluminum construction