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4EAT Transmission Mount Insert Bushing

4EAT Transmission Mount Insert Bushing

SKU: RTEK-111672
Regular price $47.72 USD
Regular price Sale price $47.72 USD
Sale Sold out
Insert Type

RalliTEK 4EAT Transmission Mount Insert Bushing installs in your factory transmission mount. RalliTEK 4EAT Transmission Mount Insert provides improved shift feel and response. This bushing will insert into your factory transmission mount and remove excess drivetrain movement caused by soft and/or aging rubber in your factory mount.


  • Improved shift feel and enhanced response.
  • Installs in your factory transmission mount.

When you order a RalliTEK transmission mount insert and a new OEM AT transmission mount from us, we will install your insert in the mount for free prior to shipment! (Does not include installing mount onto vehicle). 

*The hard insert bushing option will increase NVH (noise, vibration, and harshness) on street driven cars*

Designed specifically for the smaller mount made for Subaru 4 speed automatic transmissions. Requires removal of factory mount from the vehicle. Bushing insert installs best with a bench vice. Install instructions are included. Usually takes less than one hour to install from start to finish.


RalliTEK offers two versions of this insert. One is soft for everyday street driving, the second is hard for track use. You can use the hard insert for everyday driving, but be aware it will contribute to a bit more drivetrain noise than our softer version!


This 4EAT transmission mount is a genuine OEM Subaru part #41022AE121.


  • The race version may cause additional NVH.
  • Automatic Transmission Only!
  • Only works with the one-piece transmission mounts. Some Subaru applications have a two-piece style mount.

Customer Reviews

Based on 5 reviews
Ryan L.
Good product

No issues with installation or performance.
Rectified alot of drive line vibration.
I imagine if i had healthy control arm bushings i would have even less or nondriveline vibrations caused by after market cv axles

Thanks for the review!

Robert L.

The insert work very good I still have a little wobble but much better I have put new cv shafts on the front had a real bad wobble now its much better still would like to get rid of the rest of the wobble I am asking if there is anything else that would help with the wobble
thanks Robert

Andy H.
Transmission Mount Insert Bushing

Bushing came well packaged and with some lubricant for insertion process. Using a small benchvise to fit the insert to the mount I found some outer lips of the insert needed to be trimmed off with a sharp Stanley knife.
This was to allow some relief during the start of the press fit proceedings in the vice. The supplied rubber lubricant helped this fitting process as described in video.
The transmission now is held tight with some flex in the mounts.
No more rattling on ignition start up and more confidence in off road driving.

Jason I.

Awesome hardware for the forester.. skid plate fitment spot on. Looks good in the woods . Would buy again.

Felipe P.
Bushing insert.

So I order the bushing insert for my 2004 Subaru Forester MT and this bushing does not fit well. Even with a new OEM transmission mount, the bushing does not seem to fit as it should. Some of the slop is gone so it does work I just wish you would make one that would fit my transmission mount.

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Warranty Information


RalliTEK branded products are warranted to the original owner against manufacturing defects in materials and workmanship for the lifetime of the product.

If a RalliTEK branded product covered by this warranty fails due to a manufacturing defect we will repair the product, without charge, or replace it at our discretion. This policy covers only original, unaltered, and unmodified materials and workmanship. This warranty does not cover damage caused by incorrect installation, accident, improper care, negligence, normal wear and tear, or the natural breakdown of colors and materials over extended time and use. Damage not covered under warranty may be repaired for a reasonable rate and a fee will be charged for return shipping.

For warranty evaluation, please contact RalliTEK Customer Service at (503) 619.0055 or to obtain a return authorization. Once this step has been completed, your product must be returned directly to the RalliTEK Warranty Department, 13339 NE Airport Way, Suite 500, Portland, OR 97230. All shipping to the Warranty Department must be pre-paid and insured. RalliTEK will not be liable for damaged or lost inbound packages.

      NOTThis warranty is only available within the United States or Canada

  • This warranty gives you specific legal rights; you may have other rights, which vary from state to state.
  • This warranty does not cover products sold by RalliTEK that are not RalliTEK branded products.

The RalliTEK website sells discontinued, special markup, and slightly blemished products at significant discounts as 'factory seconds' products. This warranty does not automatically cover products purchased as factory seconds. RalliTEK reserves the right to determine if any warranty applies on a case-by-case basis for factory second parts. If approved, the RalliTEK Warranty Department may repair factory second products for a reasonable charge and applicable shipping charges.


Non-RalliTEK branded products do not have any written or implied warranties. Products on are sold with the warranty applied directly from the manufacturer. The customer must contact the product brand manufacturer for any warranty details. All products sold by RalliTEK are intended for off-road and/or race use only, as suggested by the manufacturer, and should be installed and set up by professional service centers only. RalliTEK is not responsible for any product failure or failure due to installation. Should a warranty claim arise, the customer and the manufacturer will handle all warranty issues directly.

There is no warranty on high-performance or race-related parts due to the nature of usage.

No payment or reimbursement shall be made for installation, removal, transportation, or other charges. The remedies outlined in this instrument are exclusive and the liability of RalliTEK with respect to any sale shall not exceed the price of the product on which the liability is based.


Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. RalliTEK shall not, in any case, be liable for special, incidental, consequential, indirect, or other similar damages arising from any breach of these warranties even if RalliTEK or its agent has been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you. This warranty is governed by the laws of the State of Oregon.

Installation Instructions