MA Series

Thermal Transfer Products Brazed Aluminum Mobile Hydraulic Oil Coolers

Made with 100% brazed aluminum bar and plate construction, API Heat Transfer’s full line of Thermal Transfer Products standard mobile oil coolers is proven to stand-up in some of the toughest off-road environments. Our oil coolers are available with a wide variety of standard options to best suit each application and offer maximum performance.

Brazed Aluminum (P-BAR) Highlights

  • 100% rugged bar and plate construction
  • Up to +400 HP of heat removal from hydraulic oil
  • Highest performing internal turbulator for maximum performance
  • Low-clogging / easy maintenance air side cooling fins

Standard Product Options

  • 12 or 24 volt DC fans
  • Hydraulic fan motor drive
  • Built-in pressure bypass (30 or 60 psi for cold start-up)
  • Heresite coating for offshore or corrosive environment operation

Customer Focused and Driven

  • All catalog product is available with short lead-times 
  • Expert application engineers available to select and size the right product for your application 
  • Custom designs are available

Industry Applications

Our oil coolers are used in a wide variety of mobile applications across the globe.

  • Commercial duty lawnmowers
  • Municipal street cleaners
  • Hydrostatic drives
  • Tow-behind compressor lube cooling
  • Construction equipment
  • Underground mining
  • Engine oil cooling

For application help and quoting, visit our Full TTP site or contact

Contact Us/Request a Quote


  • Fluid Power
  • Data Centers
  • Edge
  • Immersion
RatingsMaximum Operating Pressure 250 PSI
Maximum Operating Temperature 300°F
MaterialsCore - Brazed Aluminum Bar and Plate
Tanks – 5052 Aluminum
Nose Bar & Little Bar – 3003-H Aluminum
Air Fin, Plate, Turbulator & End Plate – 3003-O Aluminum
Connections - Aluminum
Core Mounting Bracket - Brazed Aluminum
Fluid CompatibilityPetroleum/mineral oils
Oil/water emulsion
Water/ethylene glycol

View all Thermal Transfer Products Products