IMS Retrofit Kits

Single Row Pro IMS Retrofit Kit for MY00-05. Requires tool 106-08.22.

Single Row Pro IMS Retrofit Kit for MY00-05. Requires tool 106-08.22.


In stock

SKU: 106-08.2.2

The First. The Original.

The IMS Retrofit is a registered trademark of LN Engineering LLC and the original ceramic hybrid ball-bearing replacement for the M96/M97 engine - the only one trusted by hundreds of independent mechanics and used by dealerships worldwide.

Problem: IMS Failure. Solution: IMS Retrofit.

Why do IMS bearings fail?

  • Lack of lubrication (sealed bearing was used)

  • Insufficient load capacity (factory single row bearing had high failure rate of 8% according to the Eisen class action lawsuit)

  • The factory did not supply a service interval, replacement, or tools for changing the original bearing out – bearing should have had a service interval!

IMS Retrofit as a preventative maintenance:

  • IMS replacement takes an average of 10-14 hours.

  • Typically coupled with clutch and other maintenance.

  • Engine rebuilds take 60+ hours and can cost tens of thousands of dollars.

  • Engines must be pre-qualified prior to bearing replacement.

What factory bearing does my engine have?

  • 1997-1999: This engine featured a dual row bearing IMS

  • 2000-2001: These engines came from the factory with either a dual row or a single row bearing IMS

  • 2002-2005: This engine featured a single row bearing IMS. Some late production 2005 models will have a non-servicable IMS.

  • 2006-2008: These engines were fitted with a larger bearing that is not serviceable without a complete teardown of the engine.

  • If the engine in your car has been replaced, it will have whatever IMS bearing was in production for that model year of manufacture for the replacement engine.

All other bearing replacements are just imitations.

  • All genuine LN IMS Retrofit kits come laser etched, engraved, and serial numbered to validate their authenticity and feature custom-made, ceramic hybrid ball bearings made exclusively for LN Engineering.


Warranty requires registration and compliance with program requirements. For more information and application guidelines please visit IMS Retrofit website

Make sure you have proper tools for installation! This product requires:

106-08.22 Faultless Tools™ IMS Tool Kit

106-08.13 IMS Pro Tool Kit

Visit IMS Retrofit Installation Tools section for more information.

Download IMS Retrofit Instructions and Warranty form (150kB). If your browser doesn't support online form filling, please right click this link and save the form to your computer first.



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.

With half the load capacity, it is clear to see that the reduced load capacity of the 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 can’t lower the load capacity, installation of a dual row ball bearing is the logical evolution for the IMS Retrofit.

Years in the making and developed simultaneously to the IMS Solution, the second generation, patent pending, 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.

Make sure you have proper tools for installation. Visit IMS Retrofit Installation Tools section



IMS Pro Tool Kit 
 Supplemental Tool Kit 
M96 Faultess Tools IMS Tool Kit


 - Required - Recommended


Additional Information

Brand IMSR

Important Seller's Note

Products and services provided by Seller have the potential to substantially raise the torque and horsepower output of an engine. Additionally, high performance parts exert greater stress on engine components. Seller assumes no responsibility for injury or damage resulting from increased torque and horsepower output or failure of any components due to Seller's products and services. Seller urges that Seller's products not be used unless, after an engine has been modified with Seller's parts and services, the owner is able to operate safely, and is willing to accept responsibility for the effects Seller's products and services may have.

It is important to read, understand and accept our Sales and Limited Warranty Terms and Conditions. Privacy Policy can be found here.

Questions or comments? Feel free to contact us before ordering at 815.472.2939 or