This design is ideal when it is discovered that additional engine oil cooling is required and there were no provisions made for a heat exchanger early in the design phase.  It is mounted between the engine block and the oil filter.


This type of engine oil cooler is designed to be mounted onto the engine block with a hollow bolt.  The oil flow is as follows: engine oil leaves engine and enters the oil cooler, circulates through the oil cooler, exits oil cooler and enters oil filter, oil is filtered and returns to engine through the hollow mounting bolt.  The cold fluid comes from the radiator circuit.  Optimal performance will be achieved if the cold fluid can be taken from the exit side of the radiator (cooled water/glycol).

Most common applications for this design can be found on most heavy duty application trucks or SUVs that come with a factory installed trailer towing package. 

To the left are the various styles of filter mounted engine oil coolers that we currently manufacture.  Each design is tailored to a certain type of application.