2014-2018 Cummins 2500 6" 4-Link Lift Kit (BDS1604H)
This full 4 link conversion 6" lift kit completely revamps your Cummins to handle better through it's full suspension travel and gives you greater durability to keep you on the road with increased stability, wheel travel, and improved handling across all terrains.
Tire & Wheel Combinations:
- 37x13.50 w/ 17", 18", 20"x9 and 5.625"
- 37x12.50 w/ 17", 18", 20"x9 and 4.5"
Notes:
- Not for use with factory rear airbag suspensions
- Fits Diesel Models Only
- The indexing ring only fits 6 bolt transfer cases (most common). Some heavy-duty tow package vehicles could have 8-bolt transfer cases (w/heavy-duty Aisin 6 speed transmissions), order 12281
- Will not fit RAM 2500 Powerwagon models
- Will not fit Cab and Chassis models
Installation:
- Click Here For Installation Instructions
- Difficulty: 4 (where 1 = easiest and 5 = complicated)
Part Number: BDS1604H

6" Front Coil Springs
Show more
6" 4-Link Box Kit
This Box Kit includes the following products:
- Driver & Passenger Side 4-Link Bracket
- Weld In Bungs
- Machined Spacer Sleeve
- Rivet Nut Installation Bolt Pack
- 1/2" Rivet nuts
- 1.00 x .120 x 3.25 Sleeve
- 1.250 x 0.312 x 0.875 Sleeve
- 5/16"-18 x 3/4" Type 23 Self Threading Bolt
- 1/16” Shims
- 1/8” Shims
- Pitman Arm
- Track Bar Cam Washer
- Fish Wire
- 1/2" Bolt Tab
- 1/4” Spacer
- 2 Sway Bar Drops
- Bump Stops
- BDS Badge
- Rivet Bolt Packs
- Bolt Pack
- Bolt Pack - 4 Link Brackets
- Bolt Pack - Sway Bar Drop
Show more
4-Link Box Kit
This Box Kit includes the following products:
- Upper & Lower 4-Link Conversion
- Straight Grease Zerk
- 4 Bushings (Large - Lower Control Arm)
- 4 Bushing (Small - Upper Control Arm)
- 875 x .156 x 2.62 Sleeve
- 90 Degree Grease Zerk
Show more
4.5" Rear Coil Box Kit
This Box Kit includes the following products:
- Rear Track Bar Bracket (or) 4.5” Dual Drilled Track Bar Bracket
- Track Bar Bracket Sleeve (2-1/8" long)
- 2.5” Rear Coil Springs or 4.5” Rear Coil Springs
- Rear Bump Stop
- 15" Sway Bar Link
- 4 Hourglass Bushing - EB1
- 4 5/8" x 12mm ID x 1-.3/8" Sleeve
- Bolt Pack
Show more
6-Bolt Transfer-Case Indexing Ring
Show more

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.
Show more

Fox 2.0 Series Shocks (2x)
Improve ride quality and capability with the FOX 2.0 performance series IFP shocks. Specially designed for BDS lift systems, these FOX 2.0 aluminum body shocks offer improved cooling capacity and corrosion protection. These shocks use race-proven vehicle-specific valving along with an internal floating piston (IFP) monotube design to separate the shock oil from high-pressure nitrogen to eliminate aeration and maximize performance on/off-road.
Show more