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Drivetrain› Automatic Transmissions and Components

Infiniti

Transmission

$8,586.99 $8,312.21 Save $274.78

SKU: 31020-X985D

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

It is manufactured to official factory specifications and undergoes stringent quality checks. This transmission is non-returnable.
Show original supplier description
The Genuine Infiniti Automatic Transmission, part number 31020-X985D, is a new, direct-replacement component engineered to meet official factory specifications. As an Original Equipment Manufacturer (OEM) part, it has undergone rigorous quality checks during its production, ensuring durability and a precise fit for compatible vehicles. This automatic transmission is specifically designed for the 2014 Infiniti Q50 models equipped with the 6 Cyl 3.7L VQ37VHR engine, including Base, Premium, Sports, Sports Upper, and Upper trims. It is important to note that this item is non-returnable. The dimensions of this transmission are 28.6 x 26.0 x 23.5 inches, and it weighs 224.40 pounds. This part is identified by lookup code 31020 and is the 'early production AWD transmission' variant, with a later updated version also available (31020-X604B).

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

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

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Specifications

BrandInfiniti
Part Number31020-X985D
CategoryDrivetrain

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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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