• OFF-HIGHWAY THERMAL MANAGEMENT

Heavy-Duty Thermal Solutions for Construction & Off-Highway Equipment

API Heat Transfer designs and manufactures heavy-duty radiators, hydraulic oil coolers, charge air coolers, and custom heat exchanger assemblies for construction and off-highway equipment — built to withstand the rigors of the most demanding job sites on earth.

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Applications

Construction, Mining, Forestry & Agriculture

Systems

Radiators, Hydraulic, CAC & Custom Assemblies

Engineering

Direct Replacement & Purpose-Built Solutions

Capability

Heavy-Duty Custom Manufacturing

THE OFF-HIGHWAY THERMAL MANAGEMENT CHALLENGE

Off-highway vehicles operate in some of the most punishing environments imaginable — from open-pit mines and construction sites to agricultural fields and forestry operations. When a machine goes down in the field, the costs are immediate and significant.

Punishing Environments.
Non-Stop Operation.
When a Machine Goes Down, the Cost Is Immediate.
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Extreme Environmental Exposure
Off-highway machines work harder, run longer, and face more extreme conditions than nearly any on-road vehicle — enduring dust, debris, shock loads, wide temperature swings, and relentless vibration across operations that never stop.
Dust, debris, shock & vibration — all day, every day
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Hydraulic System Thermal Management
In construction equipment, hydraulic systems are the lifeblood of the machine. Keeping hydraulic fluid within the proper temperature range is essential to maintaining pressure, protecting seals, and preventing component wear — a thermal failure here is a machine failure.
Hydraulic temp control — critical to machine health
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Operator Cab Climate Control
Operator cab climate control is a critical requirement across all off-highway segments — ensuring comfort, focus, and safety during long shifts in extreme heat or cold. In remote job site environments, cab climate failure can be a serious safety event.
Cab climate — operator safety & productivity

Engineered for the Job Site. Built to Last.

API brings deep thermal engineering expertise to the off-highway market — designing and manufacturing complete cooling solutions for construction, mining, forestry, and related applications. From standard catalog DC and hydraulic fan drive coolers to highly engineered custom engine cooling packages, API’s integrated systems can combine radiator, charge air cooler (CAC), hydraulic oil, transmission, fuel cooling, and A/C condenser functions into a single, space-efficient package. Each system is designed around the specific duty cycle of the equipment to ensure long-term performance, reliability, and cost-effectiveness in harsh, high-load conditions. Whether you need a direct replacement solution or a purpose-built thermal system for a specialized machine, our team has the experience and manufacturing capability to deliver.

API Heat Transfer - 1 Module Icon Integrated Multi-Function Cooling Modules

Custom-configured cooling packages combining radiator, CAC, hydraulic oil, transmission, fuel cooling, and A/C condenser functions into a single space-efficient module — engineered around each machine's specific duty cycle for maximum performance, reliability, and cost-effectiveness on the job site.

API Heat Transfer - 2 Fan Icon DC & Hydraulic Fan Drive Coolers

Standard catalog DC and hydraulic fan drive coolers for cranes, excavators, loaders, and trucks — proven, field-ready solutions that support immediate deployment and simplified maintenance across the full range of construction equipment platforms.

API Heat Transfer - 3 Wave Icon Advanced Fin Technology for Heavy-Duty Performance

A variety of internal and external fin configurations deliver highly efficient air-cooled heat exchanger cores — maximizing thermal performance and maintaining engine power under continuous heavy-duty operation in dirt, vibration, and extreme temperatures.

Replacement Icon Custom & Direct Replacement Solutions

From direct OEM replacements to fully custom-engineered assemblies for specialized machines, API delivers thermal solutions matched to each application's unique packaging, performance, and durability requirements — improving uptime, durability, and overall equipment performance.

API Heat Transfer career opportunities

PROVEN ACROSS OFF-HIGHWAY MARKETS

Off-highway segments we support.

Construction

Heavy-duty cooling solutions for excavators, loaders, dozers, and cranes — engineered for high-load, high-vibration job site environments where uptime is directly tied to project profitability.

Extreme Duty Performance, Jobsite reliability
Construction equipment

Mining

Robust thermal systems for surface and underground mining equipment — including haul trucks, drilling rigs, and continuous miners — operating in the most abrasive and thermally demanding environments in industry.

Maximum Durability, Abrasive environment rated
Surface & underground mining

Forestry

Reliable cooling packages for harvesters, forwarders, and other forestry equipment operating in remote, debris-heavy environments with limited maintenance access between service intervals.

Remote Operation Reliability, Long service intervals
Forestry equipment

Replacement & MRO

Direct replacement radiators, hydraulic coolers, and CAC units engineered for dimensional compatibility with installed equipment — supporting both planned maintenance and urgent field replacement across all off-highway platforms.

Drop-In Replacement Capability, Retrofit-ready
All platforms

Agriculture

High-capacity cooling solutions for tractors, combines and other agricultural equipment managing peak thermal loads during intensive seasonal operations across dusty, high-residue field environments.

Remote Operating Reliability. Extreme Duty Performance

TECHNICAL RESOURCES FOR OFF-HIGHWAY ENGINEERS

Engineering collaboration, product specifications, and thermal system design support for construction and off-highway applications — from replacement selection through purpose-built custom assembly design.

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Off-Highway Radiator Selection Guide

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Hydraulic Oil Cooler Application Guide

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Charge Air Cooler Specifications — Off-Highway

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Custom Heat Exchanger Assembly Capabilities

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Direct Replacement Reference Guide — Construction Equipment

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Off-Highway Case Study or Mining Thermal Management Overview

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Frequently Asked Questions

Common questions about Construction heat transfer applications and API Heat Transfer solutions.

What heat exchanger products does API Heat Transfer supply for construction equipment?+
API Heat Transfer supplies hydraulic oil coolers, engine radiators, charge air coolers, and complete cooling modules for construction equipment including excavators, cranes, bulldozers, wheel loaders, pavers, and concrete equipment. AIRTECH® aluminum brazed bar-and-plate products are engineered for the heavy-duty, high-vibration operating conditions typical of construction equipment.
Are API Heat Transfer products suitable for hydraulic system cooling in construction equipment?+
Yes. Hydraulic oil cooling is one of the primary applications for API Heat Transfer’s AIRTECH® and Thermal Transfer Products (TTP) lines in construction equipment. Products are sized for the hydraulic power requirements of specific machine platforms, with both air-cooled and water-cooled configurations available. Compact designs are available for machines with limited installation space.
Can API Heat Transfer supply cooling systems for cranes and lifting equipment?+
Yes. API Heat Transfer supplies hydraulic oil coolers, engine radiators, and cooling modules for mobile and tower cranes. Products for crane applications must meet specific vibration, wind exposure, and access requirements, which API’s engineering team addresses through custom design and packaging.