Heavy-Duty Radiators in Newcastle

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Service You Can Rely On

At South Coast Radiators, we specialise in industrial radiator solutions for trucks, earthmoving equipment, mining vehicles and heavy machinery in Newcastle. Our radiators are built to withstand extreme conditions, ensuring maximum cooling efficiency and durability for demanding industries.


With extensive knowledge and experience in the mining sector, we provide fast overhauls, re-cores and rebuilds to keep your fleet running efficiently. We work with all major heavy vehicle brands, using high-quality materials for long-lasting performance. Whether you need a new assembly, a full re-core or a quick repair, our team will do everything possible to ensure minimal downtime. We also offer free local pickup and delivery for added convenience.


Based in Wollongong and servicing Nowra, the Southern Highlands, Newcastle and surrounding areas, we'll keep your equipment performing at its peak!


Call (02) 4283 1547 today for expert heavy and industrial radiator services you can rely on!

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Custom Builds

Expert Repairs & Servicing

Hard Working Team

Established in 1975

Family Business

Our Service Process

Regular industrial radiator servicing is crucial for keeping heavy machinery, trucks and mining vehicles running efficiently. Our process includes:


  • External Cleaning: Removes debris and build up from the core that affects air flow.
  • Inspection & Diagnosis: We visually assess for external damage and corrosion.
  • Pressure Testing: All radiators are pressure tested both prior to and at completion of all work carried out.
  • Repair/ Overhaul/ Rebuild: We carry out the required work to the highest standard, using high-quality materials and hardware.
  • Final Testing: A rigorous final testing procedure ensures peace of mind before re-fitting.
Enquire Today

Enquire Now in Newcastle

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Opening Hours

Mon- Fri  7:30 am - 5:00 pm

 Sat  7:30 am - 5:00 pm By Appointment

Sun Closed

We offer free cooling system pressure testing in Newcastle to detect leaks and inefficiencies. Our chemical flush service removes contaminants, improving coolant flow and radiator performance.

Regular cooling system flushes remove rust, debris and old coolant, improving radiator efficiency and extending the life of your vehicle’s cooling system in Newcastle. Contact us to learn more.

Stock radiators often struggle with increased engine output. Our custom-built radiators in Newcastle provide better heat dissipation, keeping high-performance and modified vehicles running at peak efficiency.



Re-coring is a cost-effective way to restore an industrial radiator’s cooling efficiency. In Newcastle, we replace damaged cores with high-performance materials, improving heat dissipation and durability.

If only a specific part of your cooling system is faulty, we can replace it without needing a full radiator replacement. We source and install high-quality radiator tanks, hoses and caps in Newcastle.



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Frequently Asked Questions

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  • What areas do you service in Newcastle?

    We service the entire Newcastle area and surrounding areas, including Mayfield, Carrington and Cardiff Heights. Contact us to confirm if we serve your specific location.

  • How does extreme weather impact industrial radiator performance?

    High temperatures increase cooling demands, while freezing conditions can cause coolant to thicken or freeze if not properly maintained. Industrial radiators must be equipped with the correct coolant mix and sufficient airflow to handle temperature extremes. In cold climates, using anti-freeze additives and block heaters helps prevent engine damage.

  • Why is airflow critical for industrial radiator efficiency?

    Proper airflow allows radiators to dissipate heat efficiently. Blocked or dirty radiator fins, clogged cooling passages or obstructed fan systems reduce airflow, leading to overheating. Regular cleaning and maintenance of cooling fans, grilles and vents ensure maximum air circulation, improving overall cooling efficiency in industrial machines.

  • What role does a transmission cooler play in heavy equipment radiators?

    Many heavy-duty radiators include built-in transmission coolers to prevent overheating of transmission fluid. This is essential for industrial machines that operate under heavy loads, as excessive heat can cause transmission wear, fluid breakdown and performance issues. Keeping both the radiator and transmission cooler in good condition ensures long-lasting equipment performance.