The IMS Retrofit is a registered trademark of LN Engineering LLC and the original ceramic hybrid ball-bearing replacement for the M96/M97 engine.

With half the load capacity of the early factory dual row bearing, it is clear to see that the reduced load capacity of the factory single row IMS bearing is a significant contributing factor to the increased number of failures.

Logic would dictate the solution is to reduce the load or redesign using a bearing with more load capacity. Since we cant lower the load capacity, installation of a dual row ball bearing is the logical evolution for the IMS Retrofit. Two rows are always better than one. What if you could put a dual row ball bearing in the place of a single row one? Now you can. Introducing the Single Row Pro IMS Retrofit Kit. Years in the making and developed simultaneously to the IMS Solution, the second generation, patented, Single-Row Pro IMS Retrofit provides an angular contact, dual row ceramic hybrid ball-bearing with 90% more load capacity and like all previous IMS Retrofit kits, additional benefits include reduced wear and longer service life provided by the ceramic hybrid bearing employed by the IMS Retrofit kit.

IMS RETROFIT AS PREVENTATIVE MAINTENANCE:

IMS replacement takes an average of 10-14 hours and requires the transmission to be removed. Tipronic 911 models require the engine and transmission to be removed as a complete unit to be able to separate engine and gearbox.

Typically coupled with clutch and other maintenance such as replacement of RMS, AOS, Water Pump, Dual Mass Flywheel, etc.

If an engine failure occurs, rebuilds take 60+ hours and can cost tens of thousands of dollars to fix. Once the IMS bearing has started to fail, it cannot be replaced safely as wear metal from the original bearing can damage the replacement bearing or other internal engine components.

Engines must be pre-qualified prior to bearing replacement