Search LN Engineering registration database*.

Get info about your installed IMS Retrofit ™ or check if the car you’re about to purchase has it. Use either IMS serial number or your car’s VIN number to find your  Date of registration (up to 30 days from installation), Bearing type, Mileage at the time of installation, your IMS Retrofit™ serial number and Name of the shop / installer.

Use your IMS kit serial number…

Enter your IMS kit serial number (digits only, e.g 123456) into the search field below.

…or use your VIN. 

Enter the last 6 (six) digits of your vehicle’s VIN into the search field below.


Considerable number of customers / shops fail to register their installation properly with us, therefore we cannot guarantee the accuracy or completness of the database provided here. The database is provided as-is contains all warranty registration records that were submitted to us.

Although uncommon, it is possible for more than one car to share the last six digits of the vin, so it is required to match up the year and approximate mileage to make sure any provided database results match your car. If duplicate entries are found with the same year, contact LN Engineering by creating a support ticket at We will attempt to pull the original registration to see if the full vin or any other information was provided at time of registration, however in most cases, if a vehicle does not have an IMS Retrofit or IMS Solution serial number affixed or there is no documentation of an install, the IMS bearing is likely to be original and still needs to be replaced.

New registrations can take up to 90 days to be processed and for the online database to be updated to reflect most recent submissions. Incomplete registrations will not be processed subject to notification of the customer and compliance with installation and registration requirements.

How do I find my IMS Retrofit™ serial number?

Look for a IMS / LN Engineering tag on your car. Common locations are:

  • door (by the VIN sticker)
  • door jamb
  • engine compartment (near oil change stickers)
  • engine lid (911®)
  • rear trunk lid (Boxster®)
  • next to the emissions label
  • near build code options sticker

What if my IMS Retrofit™ Serial Number is not found in the database?

  • Refer to the table below to approximate installation date (+ / – 6 months) based on the serial number ranges. 
Serial Number Production Date
2000 April 2011
5000 April 2012
9000 April 2013
12000 April 2014
17000 April 2015
22000 April 2016
25500 April 2017

Service Intervals – Quick Guide.

IMS Retrofit™ Classic

4 years or 50,000 miles

IMS Retrofit™ Dual Row

6 years or 75,000 miles

IMS Retrofit™ Single Row Pro

6 years or 75,000 miles

IMS Retrofit™ MY06-08

6 years or 75,000 miles

RND RS Roller IMS Retrofit

4 years or 50,000 miles

IMS Solution

Designed for life of the engine