Porsche 996 / 986 Intermediate Shaft Bearing (IMS) Update Kit by LN Engineering (ENG 106 08 4)

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Engine Intermediate Shaft Bearing Update Kit 1999-2001 Porsche 9961997-2001 Porsche 986 BoxsterLN Engineering - Sold As A Kit - 1 Per Car - * Note: Double Row IMS Bearing Version ( Original Cover Dish Depth = 13.34 mm) . Kit Contains: Superior Ceramic Bearing - Custom Shaft Cover Flange With Seal And Bolts - Improved Center Bolt. * Also Use IMS Tool Set #10 0125 001. Enables Bearing Replacement Without Engine Removal. * The Double Row Bearing Update Has A 6 Year Or 75 - 000 Mile Service Interval.With The Change From The Metzger Engine To The M96 - Cost Cutting Measures Were Made. 911S, Boxsters, And Caymans Fitted With The M96 And M97 Engines Use A Sealed Ball Bearing To Drive The Camshafts Indirectly Off The Crankshaft. Over Time - This Sealed Bearing Can Lose Grease And Seize - Resulting In Engine Failure. Working With LN Engineering - We Implement A Solution That Will Last The Life Of The Vehicle. By Replacing This Sealed Ball Bearing With An Oil Feed Plain Bearing - Similar To That Of Air-Cooled Engines - The Chance Of Bearing Failure Is Greatly Reduced. IMS Bearing Failure Is Most Common In Vehicles That Don’t See Much Use And Are Not Driven Hard. Up Until 2000 - A Dual Row Bearing Was Fitted To All Vehicles Which Had A Smaller Risk Of Failure. Some 2000-2001 Porsches Were Fitted With This Bearing While Others Were Fitted With The Inferior Single Row Bearing That Had A Lower Load Capacity. These Bearings Were Fitted Up Until 2006 When A Larger Single Row Bearing - With Similar Load Capacity And Failure Rate Of The Earlier Dual Row - Was Implemented. These Larger Bearings Are Inaccessible And Require Splitting The Case To Replace. With The Introduction Of The 9A1 Engine In 2008 - The Intermediate Shaft Was Completely Removed - Removing The Issue Entirely. Alternate Part Numbers: ENG 106 08 4 / ENG-106-08-4 / ENG.106.08.4 / ENG106084 Show more