You have no items in your shopping cart.

You have no items to compare.

RND Engines

Dual Row RND RS Roller IMS Bearing Replacement Retrofit Kit

More info on LN Engineering's Prop 65 policy

Dual Row RND RS Roller IMS Bearing Replacement Retrofit Kit


In stock

SKU: 106-08.4R

The only IMS roller bearing replacement kit with true thrust control.

Cylindrical roller bearings provide great lateral load capacity, sacrificing their maximum load cap in thrust (axial movement). That’s why precise thrust control is crucial for bearing’s longevity and reliability. RND Roller Bearing IMS Retrofit kit is the only solution on the market that uses proper heat treated, 52100 bearing steel thrust surfaces on both sides. Features a genuine Koyo NUP204E. Only the best cylindrical roller bearing we could source for our RS Roller IMS Retrofit Kit.

Manufactured by LN Engineering LLC for RND Engines, The RND RS Roller IMS Bearing Replacement sports a 2-year/24,000 miles limited parts warranty with professional installation, proper IMS procedure pre-qualification, and qualifying bearing registration. The RND RS Roller IMS Bearing Replacement has a recommended service interval 4 years or 50,000 miles, whichever comes first.

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.

Use IMS Pro Toolkit part number 106-08.13 for installation. No oil system modifications required!

Download 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 as a PDF file.

Download Installation Manual from RND Engines website.

Note: Free basic technical support is provided through our ticketing system. Assistance with the IMS procedure is not provided outside of directives and videos provided online. Advanced Technical Support (ATS) is a paid service where you can speak to an actual technician experienced with the IMS procedure and your vehicle to assist in case you run into a problem you cannot solve on your own.


Additional Information

Brand RNDE
Manufacturer's Suggested Retail Price No

Important Seller's Note

The Seller, hereby expressly disclaims all warranties either express or implied, including any implied warranty of merchantability or fitness for a particular purpose, and neither assumes nor authorizes any other person to assume for it any liability in connection with the sale of this part(s) and/or service. Buyer shall not be entitled to recover any consequential damages, damages to property, damages for loss of use, loss of time, loss of profits, or income, or any other incidental damages. In addition, expressly excluded is any liability for defects pertaining to safety or performance, by way of ‘‘strict liability’’, negligence or otherwise. In the event of non-payment, the Buyer agrees that the costs of collection including court cost, and reasonable attorney’s fees, shall be recoverable from the Buyer. The Buyer has read and with any transaction, agrees to all of the terms and conditions in connection with the Seller.

Terms: • All Returns/Exchanges Require Written or Verbal Pre-Authorization and RMA Number. • Positively No Exchanges Without This Invoice. • No Refunds On Opened Packages Or Used Parts. • Items Returned Must Be In Original Packaging. • No Refunds On Special Orders. • No Return On IMS Parts. • No Refunds After 30 Days. • 25% Handling Charge On All Returned Items. • No Returns On Electrical Parts. • Refund On Purchases Paid By Check Are Refunded After Check Clears. • Limited Lifetime Warranty on NSC plating provided by Millennium Technologies LLC and subject to their terms and conditions. • There is no warranty on blocks processed with the Nickies Lite direct plating process. • Any Damage Must Be Reported to the Shipper and LN within 24 Hours of Receipt.

By continuing with your purchase and completing the checkout process you acknowledge and agree with Sales Terms and Conditions.

View also the additional information about Privacy and Security

Questions or comments? Feel free to contact us before ordering. Open a service ticket, call 815.472.2939 or email