Zumbrota Drivetrain

BW4446 Transfer Case

$3,161.89

SKU: RTC4446D-3

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Zumbrota Drivetrain RTC4446D-3 is a remanufactured BW4446 transfer case designed for specific Ram 3500 Cab Chassis models equipped with an Aisin transmission. This unit features an electric shift system, a rear bolt yoke, and a 28-spline input shaft. It also includes magnet wire within the rear case for enhanced operation. The adapter for the transmission is an 8-bolt type, and the shift motor is not included with this transfer case. Key specifications include an internal spline front output shaft. The part is identified by tag numbers such as 5146628AA, 68322288AA, and RL309779AA, among others. This transfer case is specifically intended for 2013-2018 Ram 3500 Cab Chassis vehicles that utilize the Aisin transmission and feature electric shift capabilities. The product is built to order and includes a refundable core charge.

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 NumberRTC4446D-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.

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