(314)970-2323 The High Speed Lab, Eaton Magnuson supercharger remanufacturing shop and parts store
  • HOME
    • Supercharger Diagnosis
    • Supercharger Instructional YouTube Videos
    • Vehicle Application
    • Our Warranty
    • Payment process
    • Testimonials
    • We Appreciate Your Business! Thank You
  • Contact Us
  • Superchargers
    • Acura Honda VTEC
    • Cadillac Chevrolet GMC >
      • GM 3800 Eaton M90 Gen 3
      • GM 3800 Eaton M90 Gen 4 5
    • CT Engineering
    • Eaton TVS1900 1.9L Superchargers
    • Ford Cobra Lightning Superchargers >
      • Ford Supercharger Rotor Assembly Kit
      • Ford Cobra Lightning Superchargers
    • Jackson Racing Eaton M45 JR and M62 JR Superchargers
    • Jaguar superchargers >
      • Aston Martin DB7 Jaguar XJ6 XJ X300
      • Jaguar 4.2L V8 4.0L V8 M112 4.0L I6 3.2L I6 M90 Superchargers
      • Jaguar 4.2L V8 M112 Gen5 supercharger
      • Jaguar 5.0L F type R XFR TVS 1.9L 1900
    • Lamborghini VF Engineering superchargers
    • Mazda Miata Jackson Racing JR
    • Mazda Moss Motors MGB
    • Neuspeed Superchargers
    • Nissan 3.3L Frontier Xterra Superchargers
    • Saleen Superchargers >
      • Saleen Stage 1 Mustang Superchargers
      • Saleen Stage VI 2.3L Whipple 05-09 Mustang
    • Stillen Motorsports
    • TRD Toyota Superchargers >
      • Toyota Tundra TRD 5.7 Liter Price List >
        • Toyota Tundra TRD 5.7 Liter PHOTOS
      • TRD 4.0 Liter V6 Price List
      • TRD 3.4L V6 Bolt-on Intake Price List
      • TRD 3.4L First Generation Supercharger FOR SALE
      • TRD 3.4L V6 BLACK 5VZ-FE >
        • TRD 3.4L V6 Cast-on Intake PHOTOS
  • Parts and Services
    • Supercharger Rebuild Kits, Tools and Parts
    • Supercharger CNC Porting Service
    • Supercharger Coatings >
      • Eaton Rotor Coating
      • Rotor Bores Coating
      • Exterior Powder Coating
    • Photo Gallery
  • Supercharger needle bearings cup-type
  • Supercharger Rebuild Kit with Ready to install Rotor Assembly - Nosedrive kits sold separately
  • >
  • Supercharger Rotor Assembly Kit fits Toyota TRD 4.0L V6 1GR-FE Tacoma FJ Cruiser 4Runner

Supercharger Rotor Assembly Kit fits Toyota TRD 4.0L V6 1GR-FE Tacoma FJ Cruiser 4Runner

SKU:
$899.00
899 1649 $899.00 - $1,649.00
Unavailable
per item

Supercharger Rebuild Kit Toyota TRD 4.0L V6 1GR-FE Tacoma FJ Cruiser 4Runner


Fits: 2005-2015 Toyota Tacoma and 2007-2009 Toyota FJ Cruiser


These kit prices are plus shipping and packaging costs. These costs will be calculated and invoiced when the order is confirmed for the shipping address.


Option #1:

HSL190009 Rebuild Kit WITH UPFRONT CORE EXCHANGE


Upfront rotor assembly core exchange. Just after the order is placed you would ship in your used rotor assembly. The kit ordered will ship after the used rotor assembly has been received once it is ready. Estimated shipping date will be determined once the used rotor assembly is checked in.


Option #2:

HSL190010 Rebuild Kit WITH CORE DEPOSIT


This kit will be built up for your order and when ready will ship out. With the return of a rebuildable core rotor assembly, the paid core deposit is refundable up to the core deposit amount paid, and core condition affects refund amount. The refund will be limited to the portion of the payment that is designated the deposit.


Option #3:

HSL251000 Rotor assembly WITH UPFRONT CORE EXCHANGE


With no parts kit.


Option #4:

HSL251001 Rotor assembly WITH CORE DEPOSIT


With no parts kit.


This kit contains a READY TO INSTALL re-manufactured, timed, with all tolerances set rotor bearing assembly. This item is Quality Control checked. As an informed DIY Do-It-Yourself person, you are purchasing this component to complete the rebuild service yourself. You are making the decision to take upon yourself the responsibility of the successful outcome. If you decide at any point to have a professional perform this service, send it in. The rotor assembly is correct when it leaves the shop. Damage that occurs after the point where it is packaged for shipment from us, is completely on the mechanical person performing the rebuild service, whether you or your mechanic. No refunds will be given however, if you run into issues, contact us first because we can help. Order will be confirmed with you. No cancellations after order is confirmed because item will be custom built for your order. May ship in 2 boxes. Call for pricing and availability.


New re-manufactured rotor assembly that is ready to install your supercharger housing. The rotor assembly comes with new rotor coating, timing gears installed. Optional choices include the new parts kit with oil and sealer for Do-It-Yourself completion of Complete Supercharger Rebuild Service.


ATTENTION!!! IMPORTANT NOTE: IF YOU NEED OUR KIT TO SHIP BEFORE YOUR CORE ROTOR ASSEMBLY ARRIVES, BUY THE OPTION THAT INCLUDES THE DEPOSIT TO ADD THE CORE EXCHANGE DEPOSIT. When you buy this item WITHOUT THE DEPOSIT you will need to send your rotor assembly in for exchange prior to this item shipping out.


Buy this item to receive a Do-It-Yourself Supercharger Rebuild Service Kit.


If you choose the option with the upfront core exchange, within a few days of this purchase, you should ship your used core rotor assembly to us for exchange. If you have any concerns about the condition of your supercharger and the cost of damages, send us a photo to help determine the condition of the core. The core deposit will be refunded after receipt of a rotor assembly that can be re-manufactured for someone else. Charges will be incurred if there is excessive wear or damage that can not be corrected during the normal re-manufacturing process. If you do not want to send a core rotor assembly in for exchange, do not purchase this item without the deposit. The other option with the deposit included in the price is the choice to purchase to buy the rotor assembly outright.


After your rotor assembly is received and inspected for exchange this item will be shipped once ready.


Send your rotor assembly right away when you purchase this item. Once we receive it, it will be checked in to make sure it is reusable for a future customer. We will ship our kit out as soon as it is ready. Choose this option if you want to avoid placing a core deposit. Be sure to ship your rotor assembly right after you purchase this item. In this way you can avoid the core charge.


This Do-It-Yourself Kit includes:


A READY TO INSTALL Timed, Coated Eaton M90 Gen5 Rotor Assembly for use with OEM and aftermarket Supercharger Kits. This item is a Re-manufactured Eaton M90 Gen5 Rotor Assembly.


Optional parts kit includes Eaton Snout nosedrive rebuild kit and pair of rotor needle bearings for you to install in the housing.


Price is plus packaging and shipping for USA addresses.


Contact our Shop Foreman for our current core inventory.


Buy this item for your supercharger 2005-2015 Toyota Tacoma and 2007-2009 Toyota FJ Cruiser to receive:


A Genuine Eaton M90 Gen5 Rotor Assembly that has been professionally re-manufactured with new rotor coating, timing gears installed, ready to be slid into supercharger housing by you or a technician. This rotor assembly fits the Toyota 4.0L TRD supercharger with black exterior.


Optional Do-It-Yourself Kit with all the parts and materials to complete the rest of the complete supercharger rebuilding service yourself. This parts and materials kit includes:


1. Two AC Delco supercharger oil, 4 ounce bottles (2)

2. Permatex anaerobic gasket maker for aluminum flanges, a red sealer (1)

3. Coupler, prepared with installation grease (1)

4. Back nosedrive ball bearing (1)

5. Front nosedrive ball bearing (1)

6. Viton front nosedrive double-lip seal, prepared with installation grease and oil on the seal lip’s internal diameters (1)

7. Nosedrive Rotoclip, a quality replacement of original wire retaining clip (1)

8. Needle Bearing Pair, Single-seal* cup-type needle bearings, to install sub-flush below surface of interior housing face that bearings are being pressed into (2)


Packaging and shipping costs to a USA address is in addition to this price.


International customers will need to contact us for shipping information.


Contact us for current estimated completion timeframe or to purchase by phone.


These TRD 4.0L superchargers are in high demand. Not necessarily easy to come by. So our Shop Foreman designed this kit to be the best way to put a supercharger you already own back into service, with much of the work performed by you or your mechanic. This kit is especially great for automotive repair shops where the mechanic can keep the cost and turnaround time down by completing the less difficult work in his repair facility.


Or...

To have a supercharger completely serviced by us, you send your core in for the rebuild. We have a Complete Rebuild Service which you can send your supercharger in to have performed. In this way you avoid a large core charge I would have to hold if I sent you a completely rebuilt and ready to install supercharger to you before a core supercharger is received by us.


This item is a rotor assembly that has been newly re-manufactured with the rotors newly re-coated and precision-timed.


This item is for an Eaton M90 Gen5 which shares the same bearing plate as some M112 superchargers but the M112 rotors are longer. The M112 kits are available, too. Contact us to ask about our other supercharger rebuild kits. The pictures show our timed rotor assembly with our Interference-fit Rotor Coating. Our Rotor Coating is very consistent because it is thickness checked during quality control inspection to ensure even application. Not all rotor coating available in the market is precision checked like ours. You can see that the bearing plate is precision CNC machined to set the ideal tolerances, giving you optimum performance. If you are not sure which you need, please email a photo of yours and we can help you identify it.


Buy this item because the rotor assembly is already professionally re-manufactured for you. Our rotor assembly bearings are retained by an Aluminum plate designed and CNC manufactured specifically for this application. This is the only method of bearing retention we trust for our supercharger rebuilding services. Now, you can use this professional, reliable method to completely rebuild your Eaton supercharger yourself, saving you time and money. NO ALUMINUM WELDING REQUIRED. A U.S. Patent has been applied for by us to protect this, our bearing retention process from unauthorized use by anyone but the designer of the process or his legal beneficiaries, Patent Pending.


Our rotor assembly is built to the exact same specifications we use when we rebuild a supercharger. All bearings and seals used are upgraded from the original part specifications and most importantly, the rotor seals are now a Double-lip Viton.


Here are a few details that may help you identify the supercharger you have.


The later Eaton M90 Gen5 TRD supercharger is usually painted Black instead of Alpine Grey. The upper and lower intake manifold is cast on to the supercharger housing. The nose drive has part of the intake runner cast onto it with a large TRD in raised letters.


The Eaton M90 Gen5 has 8 bolts in the Nosedrive bolt circle. With the Gen 1, 2 & 3 Eaton superchargers, this is a simple matter to determine because the Eaton M90 Gen3 has 9 bolts holding the Snout on. The M45 Gen3 and M62 Gen3 only have 8 bolts.


Providing a phone number, we can contact you at if there are any questions about your order is always helpful and leads to better service. Of course, we never have time to spam and never share information.


If your bearing plate looks way different then just email us some phone pictures and ask our Shop Foreman to assist you in determining the supercharger type you have and what kit you need.


It is your responsibility to insure you request the correct rotor assembly. It is not always easy to be sure what you have because there are so many variations to the Eaton superchargers. With this in mind we want you to know that if the rotor assembly that arrives does not match the one you need to replace, contact us immediately. Do not panic and remember we have offered this because we want to help you get the right parts. We want you to have the right one and will work with you to exchange it when an honest mistake is made. Please help us by making your best effort to be sure which rotor assembly you need before you place your order. It is okay to tell us in your order email that you are not sure what you need. It can really help us to help you if you would email us a photo, and for this cell phone photos work great. We can prevent delays and frustration by looking at your snapshots for 5 minutes instead of all the extra work to exchange the part. Let us help you up front if you aren't 100% sure you know what you have and what you need.


THIS ITEM IS FOR:


Eaton M90 Gen5



THIS ITEM IS NOT FOR:


Eaton M45 Gen3, Eaton M45 Gen4, Eaton M45 Gen5


Eaton M62 Gen3, Eaton M62 Gen4, Eaton M62 Gen5 


Eaton M90 Gen3, Eaton M90 Gen4 


Eaton M112 Gen4, Eaton M112 Gen5


Eaton M122


Eaton TVS 4-lobe


This kit is NOT for these supercharger model/generations because they use a different rotor assembly bearing plates. Please contact us to get more details about a supercharger rebuild kit for these or other Eaton Models that are not listed here. Contact us by email to speak with the Shop Foreman. You can send us a picture of your supercharger for help in identifying yours.


This kit contains a re-manufactured rotor assembly. This item is Quality Control checked. As an informed DIY Do-It-Yourself person, you are purchasing this component to complete the rebuild service yourself. You are making the decision to take upon yourself the responsibility of the successful outcome. If you decide at any point to have a professional perform this service, send it in. The rotor assembly is correct when it leaves the shop. Damage that occurs after the point where it is packaged for shipment from us, is completely on the mechanical person performing the rebuild service, whether you or your mechanic. No refunds will be given however, if you run into issues, contact us first because we can help.


Will this fit the vehicle application of the supercharger being serviced?


This kit is applicable for Eaton M90 Gen5 superchargers used in some Toyota TRD 4.0 Liter V6 1GR-FE engine vehicle applications. For complete list of compatible vehicles see compatibility chart. Please contact us if you need help to make sure your supercharger is this kind. We have friendly, helpful technical people available by email or phone to answer the lingering questions you have. Just ask.


What can be done to confirm this is the right item for the supercharger's vehicle application?


We are happy to help you make sure you order the right part for the job. If you have ANY DOUBTS about this being the one your application needs, please email us before you purchase this item. Include a cellular phone photo of the one you are replacing, for the Shop Foreman to look at. Also, include the year, make, model and trim level to assist in the identification of the vehicle application.


What is done to the newly re-manufactured Eaton Supercharger Rotor Assembly?


We completely disassemble the rotor assembly plate including removing the old seals and bearings. The bearing plate is carefully measured and paired with a newly re-coated pair of rotors. The rotor coating is our special, exclusive interference-fit rotor coating, similar to Piston Skirt coating in durability and environment parameters. Our coating is durable in harsh environments found in configurations using nitrous injection systems, methanol or water injection. Then the rotor assembly plate is CNC machined to accomplish correct rotor timing and front rotor-to-bearing plate clearance, set at 0.006" to 0.009" and the mesh is split +/- 0.001" for optimum supercharger operation. Both rotor seals and rotor ball bearing have been replaced.


What are the specifications for the Rotor Coating?


Superior, our Rotor Coating is very consistent because it is thickness checked during quality control inspection to ensure even application. Not all rotor coating available in the market is precision checked like ours. We check them so carefully after coating because the rotor assembly will work best and most quietly with proper thickness of rotor coating. You can see that the bearing plate is precision CNC machined to set the ideal tolerances, giving you optimum performance.


What does this supercharger rebuild kit process include?


When you buy the kit with the optional nosedrive parts kit, you, the buyer will have the parts that you need to replace the rear rotor needle bearings, rebuild the nose drive snout and install the rotor assembly yourself.


What are some important process points that can help with the rebuild process?

The inside race of the front nose drive ball bearing must be supported when installing the shaft. This means the shaft must be installed before the front nose drive seal is installed because the front nose drive seal will cover the inner race of the front nose drive bearing when the seal is installed. If you do not support the inner race, it will result in installation damage to the ball bearing. A clicking noise in the bearing after installation is a symptom of this.


Never use ball bearings with dust covers because in this application they are used in an oil bath.


Should a contact phone number be provided by the buyer when the item is ordered or purchased?


Providing a phone number is always helpful and leads to better service because we can contact you if there are any questions about your order. Of course, we never have time to spam and never share information.


We recommend using Permatex Anaerobic Gasket Maker (PX#51817 NET .20 FL OZ or PX#51813 NET 1.69 FL OZ) which is designed for Aluminum flanges, available at some auto parts stores. Do not get any sealer or any debris in the rotors during installation. Do not use too much sealer or it will squeeze out into the rotors which will damage the supercharger. Completely clean any old sealer off the surfaces you are connecting the supercharger to because leaving the old sealer on the flanges will distort the supercharger housing when bolted together and cause failure. Follow the instructions on the package of the sealer for best results.


What is the tolerance goal for my assembly to work properly?


You will want a minimum gap of 0.006" to 0.010". The gap can be greater than 0.010" however this wide of a gap will allow for air charge leakage. The smaller the gap between the rear housing and the back rotor faces, the tighter the supercharger seal. The rotors should never touch each other or the housing internal bores, anywhere at all.


What Warranty Coverage is included with my purchase?


Our One-Year Warranty and our long-term eBay reputation will be your peace of mind.


And as always, we are here if you decide it might be in your best interest to have a professional supercharger re-manufacturer service it.Yes, we can rebuild it even if you have started the service yourself. Try not to tear anything up and package all the parts up carefully.


Get started today on your supercharger rebuild service, knowing you have choices to fit your budget, time frame, mechanical skill level and available shop tools.


To get help determining whether this item will work with your supercharger you can:


  • Call (314)970-2323
  • Email us at [email protected] and send us a message with a picture of your supercharger.


We will make sure you receive the parts needed.


We appreciate your business.

Thank you!

The High Speed Lab™


©Copyright 2025 The High Speed Lab™ All Rights Reserved.

  • Facebook
  • Twitter
  • Pinterest
  • Google+
Add to Cart
Web Hosting by StartLogic