Ram Transfer Case Assembly - N/A - Zumbrota Drivetrain - RTC4446D-12M
Details
Transfer Case
RTC4446D-12M
BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift motor is included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD
BW4446 T-Case 19-24 Ram 4500/5500 DPL, AS66RC, R. Bolt Yoke, E-Shift, W/ Motor
Remanufactured BW4446/BW4448 Transfer Case, 19-24 Ram 4500/5500 With DPL Option, With Aisin Trans, Rear Bolt Yoke, Electric Shift, Shift Motor Included
Zumbrota Drivetrain Transfer Cases are rebuilt to unparalleled standards for confidence and satisfaction driving behind the wheel. Our expert craftsmen take pride in restoring each unit to ensure the utmost quality by diligently executing each step. Cases and internal components are thoroughly inspected and tested for signs of wear such as cracks, stripped threads, shaft straightness, gear wear and chain stretch. Zumbrota uses an exclusive Hydro-blast rinse and blasting procedure on internal and external parts, followed by a proprietary shot-enticed deep cleaning. Each unit is fully rebuilt with replacement of all bearings, seals, and viscous couplers. All finished units are thoroughly spun tested for shift-ability and noise. All transfer cases are shipped in high density plastic totes to eliminate damage in transit.
BW4446/BW4448 Transfer Case
28 Spline Input
Magnet wire in rear case
Rear Bolt on Yoke
8-Bolt Transmission Adapter
External Spline Front Output Shaft
Shift Motor is Included
- BW4446/BW4448 Transfer Case
- 28 Spline Input
- Magnet wire in rear case
- Rear Bolt on Yoke
- 8-Bolt Transmission Adapter
- External Spline Front Output Shaft
- Shift Motor is Included
Housing Color: Aluminum
Housing Material: Aluminum
Rear Output Type: Bolt On
Selector Switch Positions: 3 positions
Shift Operation Type: Electric
Transfer Case Fluid Capacity: 1.9
Transfer Case Fluid Included: No
Transfer Case Fluid Type: Synthetic TCF
Transfer Case Motor Included: Yes
Detailed Fitment Results
| Year | Make | Model | Body Type | Drive Type | Fitment Notes |
|---|---|---|---|---|---|
| 2019 | Ram | 4500 | Cab & Chassis - Conventional Cab & Chassis - Crew Cab | 4 X 4 | BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift Motor is Included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD |
| 2019 | Ram | 5500 | Cab & Chassis - Conventional Cab & Chassis - Crew Cab | 4 X 4 | BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift Motor is Included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD |
| 2020 | Ram | 4500 | Cab & Chassis - Conventional Cab & Chassis - Crew Cab | 4 X 4 | BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift Motor is Included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD |
| 2020 | Ram | 5500 | Cab & Chassis - Conventional Cab & Chassis - Crew Cab | 4 X 4 | BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift Motor is Included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD |
| 2021 | Ram | 4500 | Cab & Chassis - Conventional Cab & Chassis - Crew Cab | 4 X 4 | BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift Motor is Included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD |
| 2021 | Ram | 5500 | Cab & Chassis - Conventional Cab & Chassis - Crew Cab | 4 X 4 | BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift Motor is Included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD |
| 2022 | Ram | 4500 | Cab & Chassis - Conventional Cab & Chassis - Crew Cab | 4 X 4 | BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift Motor is Included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD |
| 2022 | Ram | 5500 | Cab & Chassis - Conventional Cab & Chassis - Crew Cab | 4 X 4 | BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift Motor is Included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD |
| 2023 | Ram | 4500 | Cab & Chassis - Conventional Cab & Chassis - Crew Cab | 4 X 4 | BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift Motor is Included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD |
| 2023 | Ram | 5500 | Cab & Chassis - Conventional Cab & Chassis - Crew Cab | 4 X 4 | BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift Motor is Included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD |
| 2024 | Ram | 4500 | Cab & Chassis - Conventional Cab & Chassis - Crew Cab | 4 X 4 | BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift Motor is Included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD |
| 2024 | Ram | 5500 | Cab & Chassis - Conventional Cab & Chassis - Crew Cab | 4 X 4 | BW4446; Electric Shift, 28 Spline Input, 8 Bolt Adapter Pattern, Rear Bolt Yoke, Exposed Front Output Shaft, With Option Code DPL 4.89 Axle Ratio, Shift Motor is Included, Tag Numbers: 68306997AA, 68306997AB, 68306997AC, 68306997AD |
Fitments
- 2019 Ram 4500 6.4L GAS
- 2019 Ram 5500 6.4L GAS
- 2020 Ram 4500 6.4L GAS
- 2020 Ram 5500 6.4L GAS
- 2021 Ram 4500 6.4L GAS
- 2021 Ram 5500 6.4L GAS
- 2022 Ram 4500 6.4L GAS
- 2022 Ram 5500 6.4L GAS
- 2023 Ram 4500 6.4L GAS
- 2023 Ram 5500 6.4L GAS
- 2024 Ram 4500 6.4L GAS
- 2024 Ram 5500 6.4L GAS

