NRF 339 Core, radiator

Engineered for reliability, built for performance

For almost a century, NRF has been a specialist in engine cooling. Radiators are where our story began — and they remain at the heart of our expertise today. With decades of innovation and engineering experience, NRF 339 radiators are known for their excellent performance, high cooling capacity and proven reliability. Our radiator range includes over 2381 references, covering 94,6% of the European car park. Whether for passenger cars, commercial vehicles or heavy-duty machinery, NRF offers a complete and competitive solution.

A radiator is one of the key heat exchangers in a vehicle. During combustion, the coolant absorbs heat from the engine and circulates through the radiator tubes. As air passes through, the coolant temperature drops, keeping the engine at a stable and efficient operating level. This process prevents overheating, improves fuel efficiency and reduces emissions.

NRF produces both mechanically assembled and brazed radiators, depending on the vehicle application.

In a brazed radiator, tubes and fins are bonded together using Nocolok® brazing technology, creating a strong metal connection that ensures optimal heat transfer. This design delivers up to 60% higher cooling efficiency than a mechanically assembled radiator, where small gaps between components reduce performance.

For vehicles equipped with towing systems or increased engine output, upgrading to a brazed radiator is the best choice for enhanced cooling and long-term reliability.

NRF also offers radiators with a part number ending in “A” — these are mechanically assembled versions of brazed radiators. They maintain NRF’s high quality standards while providing a more economical solution for customers looking for a cost-effective alternative without compromising reliability.

All NRF 339 radiators are designed for perfect fitment and durability. With the Easy Fit concept, every radiator includes the required mounting accessories — such as O-rings, adaptors, clamps and clips — directly in the box. This saves workshops time and ensures a quick, professional installation.
Currently, NRF offers 557 Easy Fit radiators, covering a wide range of popular vehicle applications.