Description
QU12113 RAM BW4448 8 Bolt Transfer Case Front Case Half Assembly for many 2019-up RAM 3500, RAM 4500, RAM 5500 4x4s with Cummins Diesel engines and Aisin AS69RC automatic transmissions. QU12113 has an 8-Bolt front mounting configuration and it is specific to RAM 3500 4x4s with the High Output Cummins Diesel engine and RAM 4500/RAM 5500 4x4s with BOTH the Cummins Diesel engine AND a 4.88 ratio rear axle. QU12113 is a genuine Borg Warner part that includes these factory assembled parts: Front Case, 70mm ID Input Bearing, Input Seal, Front Output Front Ball Bearing, Front Output Seal, 2 Case Alginment Pins, and 8 Transfer Case to Transmission Mounting Studs. Assembled in Mexico using global components.
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Dan the Gear Man® Tech Notes:
Do I Have a BW4446 or BW4448 Transfer Case in my Chassis Cab?
2019-up Cummins High Output Pickup
Applications
Tech Note 1: Do I Have a BW4446 or BW4448 Transfer Case in my Chassis Cab?
Starting in 2019, RAM used two similar looking but different 70mm Input Bearing, 8-Bolt Mounting, electric shaft Borg Warner transfer cases in RAM 3500, RAM 4500 and RAM 5500 chassis cab 4x4 trucks. RAM parts listings show both types as 44-46 models, however, RAM factory Service Manuals show them as 44-46 and 44-48. QU12113 only fits the 44-48 8 Bolt applications which are found in 2019-up RAM 3500/4500/5500 Cummins Diesel Chassis Cab trucks with 4.88 axle ratio.
Tech Note 2: 2019-up Cummins High Output DRW Pickup
2019 and newer RAM 3500 Dual Rear Wheel (DRW) PICKUPS with the Cummins High Output Diesel Engine and electric shift transfer case have a BW4448 transfer case with 8 bolt mounting. 2019-up RAM 3500 4x4 Pickups equipped with the High Output Cummins Engine AND Single Rear Wheel use a BW4446 with 8-Bolt Mounting. All other 2019-up RAM 2500, RAM 3500 4x4 PICKUPS with either gas engines or the standard Cummins Diesel and an electric shift transfer case use a 6-bolt mounting BW4446.
Tech Note 3: Matching Parts
Saved for Future Use
Applications
RAM 3500 DRW Pickup with High Output Cummins Diesel Engine:
2019, 2020, 2021, 2022, 2023, 2024
RAM 3500-5500 Chassis Cab:
With Cummins Diesel AND 4.88 Axle Ratio: 2019, 2020, 2021, 2022, 2023, 2024
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