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Drivetrain› Automatic Transmissions and Components

GM Genuine Parts

6-Speed Automatic Transmission

Name: 6-Speed Automatic Transmission
Brand: GM Genuine Parts
SKU: 12224T

$2,909.03

SKU: 12224T

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

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Overview

The General Motors 12224T is a remanufactured 6-speed automatic transmission. It is fully remanufactured to meet or exceed OE specifications.

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The General Motors 12224T is a fully remanufactured 6-speed automatic transmission, designed to meet or exceed OE specifications. This transmission undergoes a rigorous remanufacturing process that includes teardown and triple cleaning, rebuilding and testing of the valve body, installation of all new o-rings, gaskets, and seals, and final dyno testing to ensure readiness for the road. This transmission is backed by a 7-year, Million Mile Warranty, which is among the best in the industry. A cooler replacement is required for installation. Note that this product may not fit your vehicle; it is essential to check application notes and verify the VIN code and cast number before ordering.

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

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Specifications

Brand	GM Genuine Parts
Part Number	12224T
Category	Drivetrain

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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.

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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.

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