The 6.7 Cummins oil cooler is located in the engine valley of the Dodge Ram 2500 and 3500 heavy duty pickup trucks. It is mounted just above the crankshaft on the driver’s side and connects to a coolant hose that routes to the radiator core. The oil cooler works by circulating hot engine oil through small passages inside its aluminum housing, where it is cooled by contact with cool outside air or water passing through cooling fins on the exterior of its housing.

This reduces temperature, improving both performance and reliability while preventing wear caused by excessive heat stress.

The 6.7 Cummins Oil Cooler is located at the bottom of the engine, behind the oil filter housing. It is a component that helps to reduce heat from the engine and ensure proper lubrication of its components. The oil cooler should be checked regularly for signs of wear and tear, as it can affect your vehicle’s overall performance.

If you are unsure of where to locate your 6.7 Cummins Oil Cooler or need help replacing it, consult an experienced technician for assistance.

video #46 6.7 cummins oil cooler

Does a 6.7 Cummins Have an Oil Cooler?

Yes, a 6.7 Cummins does have an oil cooler. This component is essential for keeping the engine running at its optimal temperature and preventing overheating. The oil cooler works by transferring heat away from the engine to reduce friction and wear on its components, such as bearings or other moving parts.

It also helps increase engine efficiency since excess heat reduces fuel economy and performance of your vehicle’s powertrain system. A properly functioning oil cooler will also help extend the life of your diesel engine by reducing thermal stresses that can cause premature failure over time if not addressed promptly. Additionally, it prevents contaminants from entering into the lubrication system which can lead to major damage if allowed to remain in circulation for too long without being filtered out regularly.

Where is the Engine Oil Cooler Located?

The engine oil cooler is typically located in the front of the vehicle near the radiator. It helps keep the engine oil at its optimal temperature by transferring heat away from it and into a separate cooling system. The engine oil cooler has two components, an internal core that absorbs and dissipates heat, as well as a fan to help draw air over it so that it can cool more efficiently.

The location of your car’s engine oil cooler may vary depending on make and model, but generally speaking you will find it close to where the radiator is installed. It’s important to note that if there are any issues with your car’s cooling system, such as clogged or broken hoses or leaks, then this could potentially effect how well the engine oil cooler works too – so be sure to check these before attempting any repairs yourself.

How Do I Know If My Cummins Oil Cooler is Bad?

Knowing if your Cummins oil cooler is bad can be a tricky task. First, you’ll want to look for any signs of corrosion or leakage on the outside of the oil cooler. If there’s corrosion or leaking around the gaskets, it’s likely that you need to replace your Cummins oil cooler.

Another sign that your Cummins oil cooler might be failing is if you notice an increase in engine temperature even when running at low speeds and light loads. To confirm these suspicions, check your engine coolant level; if it’s consistently lower than normal, this could indicate an issue with the Cummins oil cooler. Lastly, pay attention to how well your vehicle runs: do you hear clunking noises coming from the engine?

Do you find yourself needing more frequent repairs? These could all point towards a faulty cummins oil cooler as well. Ultimately, having a certified mechanic check out your car and verify its condition will give you peace of mind and allow for proper diagnosis and repair work if needed!

What Happens When Engine Oil Cooler Fails?

When an engine oil cooler fails, it can cause a variety of issues that can have disastrous consequences for your vehicle. The purpose of the oil cooler is to reduce the temperature of the engine oil as it circulates through the system, which helps keep temperatures at optimal levels and prevents overheating. Without this cooling effect, excess heat builds up in the engine components leading to accelerated wear-and-tear and potentially severe damages such as burnt pistons or bearings.

Furthermore, when too much heat is being generated by an overworked engine due to a faulty oil cooler, other components are likewise placed under duress – such as transmission fluids and coolants – resulting in further damage down the line. To prevent costly repairs you should have your vehicle inspected if you notice any signs that could indicate a failing engine oil cooler; these include smoke from exhaust pipes or visible leaks from hoses connecting to the unit itself.

6.7 Cummins Oil Cooler Location


6.7 Cummins Oil Cooler Upgrade

The 6.7 Cummins oil cooler upgrade is a great way to keep your engine running longer and more efficiently. By upgrading the oil cooler, you can reduce engine temperatures which can help prevent damage from overheating. The improved cooling system will also improve fuel economy and performance by allowing for faster warm ups of the engine’s components, increased oil viscosity, and lower operating temperatures.

If you’re looking to get the most out of your Cummins diesel engine, an upgraded oil cooler is highly recommended!

6.7 Cummins Oil Cooler Failure

Common signs of 6.7 Cummins oil cooler failure include decreased engine performance, white smoke or steam coming from the exhaust, and an illuminated check engine light. If the oil cooler is not replaced promptly after failure, it can lead to serious damage to your engine and possibly even catastrophic engine failure. It is important to have any potential issues with your 6.7 Cummins oil cooler inspected by a certified mechanic as soon as possible in order to avoid further damage and costly repairs.

6.7 Cummins Oil Filter Housing Replacement

Replacing the oil filter housing on a 6.7 Cummins diesel engine is an important part of regular maintenance. The housing needs to be replaced every 30,000 miles or so, depending on how much you drive and what type of driving you do. It’s important to use genuine parts when replacing the oil filter housing – this will ensure that your engine runs smoothly and efficiently while also providing long-term reliability.

Be sure to check with your local mechanic for more specific instructions regarding this replacement process.


In conclusion, the 6.7 Cummins oil cooler is located in the front of the engine near the fan. It is important to note that this should be checked regularly to ensure maximum performance and efficiency from your engine. If you are having trouble locating it or have any questions about its maintenance, contact a qualified service professional for assistance.

With regular maintenance and care, your 6.7 Cummins will continue to provide reliable power for many years to come!

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