CAT 740 Radiator (SFENG-224) Product Overview

Short Description:

The SFENG-224 is a high-performance tube-and-fin radiator specifically engineered for the Caterpillar 740 series off-highway haul trucks, serving as a direct replacement for OEM part number 2473907. Designed to meet or exceed the original equipment’s thermal management standards, this radiator delivers consistent, reliable cooling performance even in the harshest mining, quarrying, and construction environments.

Built with heavy-duty construction tailored for extreme operating conditions, the radiator features a core measuring 1000×838×116 mm, paired with header tanks sized at 858×143.5 mm. The inlet and outlet connections are precision-machined to Φ76 mm, ensuring optimal coolant flow rates, while the 3/8 NPT auxiliary port allows for seamless integration with the machine’s cooling system accessories. Its tube-and-fin design maximizes heat transfer efficiency by increasing the surface area exposed to ambient airflow, effectively dissipating the intense heat generated by the CAT 740’s high-load diesel engine. Constructed from corrosion-resistant materials, the unit is engineered to withstand prolonged exposure to vibration, thermal cycling, and corrosive coolants, reducing the risk of leaks, clogs, and premature failure.

As a critical component of the CAT 740’s powertrain, this radiator plays a vital role in maintaining optimal engine operating temperatures during continuous heavy-duty use. Overheating is one of the leading causes of engine damage, reduced fuel efficiency, and costly unplanned downtime in haul trucks, and this radiator prevents these issues by stabilizing coolant temperatures even under full-load, high-temperature operating conditions. By ensuring consistent cooling, it also protects the engine, transmission, and other critical components from thermal stress, extending their service life and maximizing the machine’s productivity on the worksite.

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Product Detail

Product Tags

The SFENG-224 is a high-performance tube-and-fin radiator specifically engineered for the Caterpillar 740 series off-highway haul trucks, serving as a direct replacement for OEM part number 2473907. Designed to meet or exceed the original equipment’s thermal management standards, this radiator delivers consistent, reliable cooling performance even in the harshest mining, quarrying, and construction environments.

Technical Specifications

Core Dimensions	1000 × 838 × 116 mm
Header Tank Size	858 × 143.5 mm
Inlet / Outlet Connection	Φ76 mm (precision-machined)
Auxiliary Port	3/8 NPT
OEM Reference	Caterpillar 2473907

Built with heavy-duty construction tailored for extreme operating conditions, the radiator features a core measuring 1000×838×116 mm, paired with header tanks sized at 858×143.5 mm. The inlet and outlet connections are precision-machined to Φ76 mm, ensuring optimal coolant flow rates, while the 3/8 NPT auxiliary port allows for seamless integration with the machine’s cooling system accessories. Its tube-and-fin design maximizes heat transfer efficiency by increasing the surface area exposed to ambient airflow, effectively dissipating the intense heat generated by the CAT 740′s high-load diesel engine. Constructed from corrosion-resistant materials, the unit is engineered to withstand prolonged exposure to vibration, thermal cycling, and corrosive coolants, reducing the risk of leaks, clogs, and premature failure.

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Why Cooling Matters: Overheating is one of the leading causes of engine damage, reduced fuel efficiency, and costly unplanned downtime in haul trucks. The SFENG-224 stabilizes coolant temperatures even under full-load, high-temperature operating conditions — protecting the engine, transmission, and critical components from thermal stress.

As a critical component of the CAT 740′s powertrain, this radiator plays a vital role in maintaining optimal engine operating temperatures during continuous heavy-duty use. By ensuring consistent cooling, it also protects the engine, transmission, and other critical components from thermal stress, extending their service life and maximizing the machine’s productivity on the worksite.

Maintenance Guidelines

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Visual Inspection — Every 200 Hours

Check for external leaks, damaged or bent cooling fins, and debris buildup. Clean the exterior with low-pressure compressed air directed from the engine side outward, or use a soft brush. Avoid bending the delicate fin structure.

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Coolant Flush & Replacement

Flush the cooling system and replace coolant at manufacturer-recommended intervals. Use only the correct type and concentration of coolant to prevent internal corrosion, scale buildup, and tube clogging.

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Mounting Brackets & Connections

Inspect mounting brackets and connections regularly to ensure they are tight and free of cracks or wear. Loose mounts can cause excessive vibration that damages the radiator over time.

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Coolant Level & Pressure Cap

Check coolant level and pressure cap condition during every routine service. Low coolant levels or faulty caps can introduce air into the system, leading to overheating and component damage.

With its OEM-compatible design, robust construction, and proven thermal performance, the SFENG-224 radiator is an essential solution for keeping CAT 740 haul trucks operating reliably, minimizing downtime, and maximizing uptime in the toughest worksite conditions.