Drivetrain› 4x4 Driveline Components

Zumbrota Drivetrain

BW4447 Transfer Case

$3,239.89

SKU: RTC4447D-3

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Zumbrota Drivetrain BW4447 transfer case is a remanufactured unit designed for 2013-2018 Ram 3500 Cab Chassis models equipped with an Aisin transmission. This transfer case features a rear bolt-on yoke and manual shift operation. It is built to quality standards with cases cleaned via hydro blasting and rinsing, and includes replacement of all bearings and seals.
Show original supplier description
The Zumbrota Drivetrain remanufactured BW4447 transfer case is specifically designed for 2013-2018 Ram 3500 Cab Chassis trucks that utilize an Aisin transmission. This unit offers manual shift operation and a bolt-on rear output yoke for straightforward installation. During the remanufacturing process, all cases undergo a thorough inspection for wear, including checks for cracks, stripped threads, shaft straightness, gear wear, and chain stretch. Zumbrota Drivetrain employs a state-of-the-art hydro blasting and rinsing procedure to restore both internal and external components to an OEM finish. Each transfer case is rebuilt with the replacement of all bearings, seals, and viscous couplers (where applicable) to ensure optimal performance and longevity. The finished units are spun tested for shiftability and noise. Key specifications include a 28 spline input, an 8-bolt transmission flange, and an aluminum housing. The transfer case has a fluid capacity of 1.9 quarts, and the fluid type is synthetic TCF, though fluid is not included. This model also features magnet wire in the rear case. This transfer case is built to order and ships when ready. Please note that units are shipped in high-density plastic totes to minimize transit damage.

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

BrandZumbrota Drivetrain
Part NumberRTC4447D-3
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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