2014-2018 Cummins 2500 6" 4-Link Lift Kit - Rear Air Bags (BDS1628H)
Take your air ride Cummins up a notch with this BDS Suspension 6" Rear Air Bag Suspension System. These kits include everything you'll need to correctly lift, improve ride quality across any terrain on & off-road, and maintain factory performance of the airbag system with no compromise on the range of motion.
Tire & Wheel Combinations:
- 37x13.50 w/ 17", 18", 20"x9 and 5.625"
- 37x12.50 w/ 17", 18", 20"x9 and 4.5"
Notes:
- Will NOT fit rear coil-spring equipped models
- 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 122813
- 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: BDS1628H

6" Front Coil Springs
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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
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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
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5" Rear Air Ride Box Kit
This Box Kit includes the following products:
- Rear Track Bar Bracket
- Track Bar Bracket Sleeve (2-1/8" long)
- 2 5” Air Bag Spacers
- 3 Air Tank Spacers
- Bolt Pack - Air Tank Spacer
- 3 8mm x 65mm Bolt
- 3 5/16" SAE flat washer
- 2 Bolt Pack
- 2 Rear Bump Stops
- 2 15" Sway Bar Links
- 4 Hourglass Bushings - EB1
- 4 5/8" x 12mm ID x 1-.3/8" Sleeves
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6-Bolt Transfer-Case Indexing Ring
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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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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.
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