5.9L / 6.7L Diesel Cooling Upgrades
HPS Silicone Radiator Hoses Kit: Dodge Ram 2500 & 3500 6.7L Diesel 2010 - 2012
HPS
Regular price
$278.30
$242.00
13% off
- Unit price
- per
3 colors
HPS Silicone Radiator Hoses Kit: Dodge Ram 5.9L Diesel 1999 - 2002
HPS
Regular price from $228.00 Up to 13% off
- Unit price
- per
3 colors
HPS Silicone Radiator Hoses Kit: Dodge Ram 5.9L Diesel & 6.7L Diesel 2003 - 2010
HPS
Regular price
$284.05
$247.00
13% off
- Unit price
- per
3 colors
Cooling Upgrades for 5.9L Magnum V8 and 6.7L Cummins Diesel Engines
The 5.9L Magnum V8 and 6.7L Cummins diesel engines are built for durability and heavy-duty performance, especially in towing applications. Upgrading the cooling system on these platforms is essential to maintain optimal operating temperatures and protect your engine during extended, high-load use.
How do cooling upgrades benefit the 5.9L Magnum and 6.7L Cummins?
Both engines generate significant heat under heavy towing and demanding conditions. Enhanced cooling components improve heat dissipation, helping prevent overheating and reducing engine wear. Proper cooling upgrades also support consistent performance and reliability, especially when your truck is under sustained load.
- High-capacity radiators increase coolant volume and heat exchange
- Upgraded fans improve airflow at low speeds and idle
- Thermostats optimized for diesel temperature ranges ensure better coolant flow
- Auxiliary cooling parts support turbocharged 6.7L Cummins under boost
What are key considerations when upgrading diesel cooling systems?
When selecting cooling upgrades for the 5.9L Magnum or 6.7L Cummins, focus on components designed specifically for diesel applications. Diesel engines run hotter and under higher torque loads than gasoline engines, so cooling parts must be robust and compatible with your engine’s cooling circuit. Proper fitment and quality materials are critical to ensure long-term durability and performance.
Find the right cooling upgrades for your 5.9L and 6.7L diesel at FastHemis
Whether you’re maintaining a classic 5.9L Magnum or maximizing the towing capability of your 6.7L Cummins, FastHemis offers cooling upgrades tailored to these engines. Browse our collection to find radiators, fans, thermostats, and auxiliary components engineered to keep your diesel running cooler and more reliably under load.