Drivetrain› Differentials and Rear-End Components

Subaru

Differential Actuator

$1,208.40

SKU: D1010FE110 / D1010FE120

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

Moderate — 2–4 hours

Overview

It is also known by the supersession part number ST4100055110.
Show original supplier description
This component is engineered to meet the rigorous demands associated with performance driving and is identified by part number D1010FE110, with a supersession part number of ST4100055110. This engine mount is stated to fit Impreza, STI, and WRX models. The extensive list of compatible model years ranges from 1992 through 2026, indicating broad applicability within these specific Subaru lines. It is crucial to confirm fitment for your exact vehicle year and trim, as engine mount designs can vary.
Vehicle Symptoms
  • AWD/VDC warning lights illuminate on the dash
  • Clicking or grinding noise from rear differential
  • Rear wheels lose drive; car feels front-wheel drive
  • Binding or jerking sensation during low-speed turns
  • Hill start assist or AWD system error message
Relevant Conversations
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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

BrandSubaru
Part NumberD1010FE110 / D1010FE120
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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