Drivetrain› Automatic Transmissions and Components

Mitsubishi

OEM SST MR Transmission

$17,736.69

SKU: 2500A343

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Overview

The Mitsubishi 2500A343 is an OEM SST MR transmission designed for the 2011-2015 Evolution X. This genuine factory replacement is a costly part that ships via freight only to the continental USA. It is not available for overnight or express shipping. Buyers should confirm the correct part number with their local Mitsubishi dealer.
Show original supplier description
The Mitsubishi 2500A343 is a genuine OEM factory replacement automatic SST MR transmission specifically for the 2011-2015 Mitsubishi Evolution X MR SST models. This transmission is a significant component and comes with a high price tag, necessitating freight-only shipping within the continental USA. Expedited shipping options are not available for this item. It is strongly recommended that buyers consult with their local Mitsubishi dealer to ensure the part number 2500A343 is the correct fit for their specific vehicle. While this part number is listed for the 2011-2015 Evolution X MR SST, Mitsubishi has used various part numbers and transmission codes across different model years (e.g., 2500A137 for 2008, 2500A305 for 2010). This particular transmission is associated with transmission code W6DGA-4-11A and TCM software part number 8631A971. Installation of this transmission may require specific procedures, including potentially programming the Transmission Control Module (TCM) and performing VIN writing, as indicated in Mitsubishi Technical Service Bulletins. Freight charges are included in the product price, but shipping is restricted to the lower 48 United States only.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMitsubishi
Part Number2500A343
CategoryDrivetrain
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy