2013-2018 Cummins 3" Radius Arm Lift Kit (BDS1622H)
If you want to have all the performance increases of a radius arm suspension setup without having to increase the ride height of your Cummins then this is the kit for you! This new system is built around massive tubular replacement radius arms. These arms are built to handle far more than the factory parts they are replacing. The design incorporates a factory-style rubber bushing mount at the frame to keep the NVH levels in check and mount right into the factory locations so installation is simple and clean.
Tire & Wheel Combinations:
- 35" x 12.50 w/ 17" x 9" and 5"
- 35" x 12.50" w/ 18" x 9" and 4.5
- 35" x 12.50" w/ 20" x 9" and 4.5
Notes:
- Will not fit Cab and Chassis models
- Some trucks are equipped with rear dual overload springs. Order 4068 to retain top overload leafs.
- Not for use with factory rear airbag suspensions
Installation:
- Click Here For Installation Instructions
- Difficulty: 3 (where 1 = easiest and 5 = complicated)
Part Number: BDS1622H

3" Font Coil Springs
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Radius Arm Upgrade Kit
This Box Kit includes the following products:
- 2 Radius Arm Assemblies
- 2 Aluminum Logo Plate - In Driver Position
- Bolt Pack
- 4 Rivets
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3" Front Box Kit
This Box Kit includes the following products:
- Driver & Passenger Side Brakeline Bracket
- 2 Bump Stops
- Adjustable Track Bar
- 4 5/16" x 1-1/4" SHCS
- 4 Trackbar Bushings
- 2 Trackbar Sleeve2
- Loc-tite
- 2 Sway Bar Link Assemblies
- 2 Clevis
- 4 Sleeves - Upper & Lower
- 2 Offset Spacer
- Bolt Pack
- Bolt Pack - Brake Line Bracket
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2" Rear Block Kit
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NX2 Series Shocks (2x)
The BDS NX2 series gas shocks offer impressive performance on and off-road. Standard in most BDS lift kits, these nitrogen-charged, twin-tube shocks offer 10-stage velocity-sensitive valving for lightning-fast damper performance and control.
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