Porsche Intermediate Shaft

Porsche Intermediate Shaft

Tuning and performance is a cornerstone of the Parr business and we offer a wide range of performance parts and servicing for all models of Porsche as well as many other manufacturers.


The intermediate shaft bearing is one of the most troublesome of all of the M96/M97 engine problems. The Porsche 911 and Porsche Boxster from model year 1997 to 2005 have a high failure rate of the intermediate shaft bearing also known as an IMS bearing. The intermediate shaft bearing (IMS bearing) supports the intermediate shaft on the flywheel end of the motor.


Porsche designed these motors using a sealed ball bearing that is pressed into the intermediate shaft. After years of use within the engine, it would appear that oil and contaminants from the engine seep past the bearing seal, wash out the original lubricant and become trapped inside. This means that the bearing begins to wear prematurely. Its design and construction leads to failure of the bearing, which results in catastrophic engine failure. The intermediate shaft’s basic function is to drive the four camshafts via timing chains. The bearing that typically fails is at the flywheel end of the crankshaft. Both the double row and single row IMS bearings in the M96 engine are prone to this type of failure.


With an online catalogue we believe that we can supply performance parts for all of your porsche modification needs.


At Parr we are well aware of the fault of the Porsche intermediate shaft and over 25 years experience has proven invaluable in finding a solution. For more information on the Porsche ims bearing and potential solutions please give our helpful team a call on 01293 537 911.