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2000 Boxster engine number


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2000 Boxster, 2.7 liter, 5 speed. I'm the sole owner and no work has been done that would ever necessitate an engine change.

The engine number off a Porsche issued Certificate of Authenicity (CA) is 65Y06546 and the boss at the right rear of the engine likely agrees with that. I say likely becuase I can't make out one digit but all the others agree and are the same sequence. Build date, again based on the CA is 12/13/1999.

At the LN Engineering the IMS bearing retrofit site states engines up to M65112851 are likely dual row IMS bearing and after that single row. That number, at least to me seems to be a totally different format.

Anyone have any insight what type bearing I have. I'm thinking of doing the LN/IMS mod in the near future and would like to order the proper kit in advance..

John from PA

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2000 Boxster, 2.7 liter, 5 speed. I'm the sole owner and no work has been done that would ever necessitate an engine change.

The engine number off a Porsche issued Certificate of Authenicity (CA) is 65Y06546 and the boss at the right rear of the engine likely agrees with that. I say likely becuase I can't make out one digit but all the others agree and are the same sequence. Build date, again based on the CA is 12/13/1999.

At the LN Engineering the IMS bearing retrofit site states engines up to M65112851 are likely dual row IMS bearing and after that single row. That number, at least to me seems to be a totally different format.

Anyone have any insight what type bearing I have. I'm thinking of doing the LN/IMS mod in the near future and would like to order the proper kit in advance..

John from PA

You may have to wait until you pull the car apart on this one. 2000-2001 was a transitional period for Porsche, during which they used both components (dual and single row), and unfortunately the use of engine numbers has proven useless in determining which style bearing is in the engine, you simply have to look. From the LN website:

"MY00-01 vehicles may need either a dual row or single row Retrofit™ kit, so you must inspect the flange and compare to the photos of the dual row and single row IMS shown above to determine which kit is needed."

And for future reference, please do not double post, it is against forum rules.

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