3 Ways to Improve Diesel Engine Cooling

March 9, 2023

Cooling is a crucial part of the function of any engine and especially in diesels. While these engines are designed to handle large loads and tough terrain, duress can put a strain on their cooling capabilities, leading to overheating and reduced performance. Fortunately, Just Autos have several performance upgrades available that can help improve cooling and overall engine performance!

Find out below the various cooling upgrades we offer popular Toyota diesels like Land Cruisers, Hiluxs and Prados and learn of the advantages having these mods fitted can provide your engine.

side view of a 4" snorkel on a Land Cruiser

Better, Safer Cooling with Our Airbox Upgrades

One of the simplest ways to improve the cooling capabilities of your Toyota diesel model is to upgrade the air intake system. Just Autos’ custom airboxes are designed to increase airflow to the engine, providing better cooling and increased performance. These airboxes are made from high-quality materials and are designed to fit perfectly with your vehicle’s existing components.

Some factory airboxes capable of providing the necessary airflow for most aftermarket upgrades and filtration requirements, but when upgrading performance parts like turbochargers as well, some Toyota owners will need to reconsider their airflow efficiency.

Just Autos advise our customers to retain their factory filters when upgrading their airbox. This is because servicing aftermarket filters can be tricky, and not doing a thorough job means a risk to your engine.

Read More: Advantages of Aftermarket Airboxes for Toyota Diesels

Benefits of Our Custom Airboxes:

  • Increased airflow to the engine, improving cooling and performance.
  • Better sealing, protecting your engine from dust and debris.
  • Improved fuel economy, thanks to more efficient combustion.
close up of Just Autos' custom airbox for improved cooling

Pair Your New Airbox with an Intercooler Fan Kit

Another effective way to improve the cooling capabilities of your Toyota diesel model is to install an intercooler fan kit. Just Autos offers intercooler fan kits that can be installed alongside our custom airboxes, providing a cost-effective and safer option compared to a complete intercooler upgrade.

The intercooler fan kits are designed to increase airflow through the intercooler, reducing the intake temperatures and ensuring maximum performance. Our intercooler fan kits are usually cheaper than a complete intercooler upgrade and can be installed without needing to replace the entire intercooler, saving you money.

Not only is the intercooler fan kit a cost-effective option, but it’s also safer for your engine compared to a complete intercooler upgrade. Upgrading your intercooler without also improving the airflow can cause an overpressure situation in the engine, leading to a significant risk of engine damage.

We strongly recommend intercooler fan kits for anyone who has installed performance-enhancing upgrades, such as a custom airbox, as they will work together to maximize the benefits of each upgrade.

Benefits of Our Intercooler Fan Kits:

  • Increased airflow through the intercooler, reducing intake temperatures and improving performance.
  • Cost-effective compared to a complete intercooler upgrade.
  • Safer for your engine, reducing the risk of overpressure situations and engine damage.
Just Autos technician fitting an intercooler fan kit for improved cooling

Keep Your Engine Cool Off-Road with a Snorkel

One of the most essential upgrades for improving the cooling capabilities of your Toyota diesel model is the installation of a 4″ snorkel. The snorkel allows your engine to breathe in cooler and cleaner air, which can lead to significant improvements in performance and efficiency.

Just Autos offers high-quality 4″ snorkels that are specifically designed for Toyota diesel models, including the VDJ70 Land Cruiser range, the 200 Series Land Cruiser, the N70 and N80 Toyota Hilux, and the 150 Prado. Our snorkels are made from durable materials and are designed to withstand harsh environments, ensuring that your engine receives a consistent flow of cool and clean air.

Benefits of Fitting a Snorkel:

  • The snorkel draws air from above the vehicle, which is typically cooler and cleaner than the air at ground level, leading to lower intake temperatures and improved engine performance.
  • The 4″ snorkel has a larger diameter than the standard air intake, allowing for increased air flow and improved engine efficiency.
  • The snorkel raises the air intake above the roofline of the vehicle, allowing you to safely cross deep water without fear of water entering the engine.
close up of 4" snorkel from Just Autos for improved cooling

New Cooling-Effective Heat Exchanger for the FJA300

In addition to the above-mentioned upgrades, Just Autos has recently introduced a new heat exchanger upgrade for the 300 Series Land Cruiser. This purpose-built upgrade achieves temperature reductions of over 50%, greatly improving the cooling capabilities of the engine.

Our FJA300 heat exchanger upgrade has been designed to work seamlessly with the existing water-to-air cooling systems that come stock standard with the 300 Series Land Cruiser. Installed in front of your 300’s condenser, our upgrade component provides a massive increase in cooling capabilities that compensate for the considerable heat soak the factory coolers are prone to experience.

Read More: 300 Series Land Cruiser: Upgrades Available Now!

Benefits of Our Heat Exchanger Upgrade:

  • Reduced intake, intercooler and coolant temperatures.
  • Maintains torque outputs, even when the engine is under duress or load.
  • Improved towing capabilities through stable intake temperatures and no loss in power or torque outputs.
Just Autos' custom FJA300 heat exchanger upgrade

Why Cooling Matters

The cooling system of your Toyota diesel model is one of the most critical components of the engine. It’s responsible for regulating the temperature of the engine, ensuring that it operates within a safe temperature range. Overheating can cause significant damage to your engine, leading to expensive repairs and potential downtime.

Read More: 3 Common Causes of an Overheating Diesel Engine 

Here are some of the reasons why cooling capabilities matter for your Toyota diesel model:

  • Increased Performance: High engine temperatures can lead to reduced performance and efficiency. By improving the cooling capabilities of your engine, you can keep the temperatures within a safe range, ensuring optimal performance and efficiency.
  • Enhanced Durability: Overheating can cause damage to critical engine components such as the cylinder heads, head gasket, and pistons. A well-maintained cooling system can prevent damage and extend the life of your engine.
  • Improved Towing Capacity: Toyota diesel models are known for their impressive towing capacity. By upgrading your cooling system, you can increase your vehicle’s ability to tow heavy loads while keeping the engine temperatures within a safe range.
  • Safe Off-Roading: Off-roading can put a significant strain on your engine, especially in harsh environments with extreme temperatures. By upgrading your cooling system, you can ensure that your engine stays cool and runs efficiently, even in the toughest conditions.

Stay Cool and Improve Performance with Just Autos!

At Just Autos, we understand the importance of a reliable and efficient cooling system. That’s why we offer a range of performance upgrades designed to improve the cooling capabilities of your Toyota diesel model. From custom airboxes and intercooler fan kits to snorkels and heat exchanger upgrades, we can help you unlock the full potential of your vehicle.

Contact us today to discuss how we can improve the cooling capabilities of your Toyota diesel model and keep it running at its best.

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