SKU: 93910450000

2013-2018 Ram HD 6" 4-Link Conversion Kit with NX2 Nitro Shocks (BDS1648H)

Sale price$1792.88 Regular price$1992.09
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Description

2013-2018 Ram HD 6" 4-Link Conversion Kit with NX2 Nitro Shocks (BDS1648H)Built to outperform, BDS Suspension engineered a 6 inch lift kit with 4 Link conversion for your 2013 2018 RAM 3500 diesel powered truck that will surely impress. Works only on trucks equipped with factory rear air ride. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your truck up right with clearance for up to 37 inch Tires. Up front the lift kit includes diesel specific Pro Ride coil springs, 4

Built to outperform, BDS Suspension engineered a 6-inch lift kit with 4-Link conversion for your 2013-2018 RAM 3500 diesel powered truck that will surely impress. Works only on trucks equipped with factory rear air ride. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your truck up right with clearance for up to 37 inch Tires. Up front the lift kit includes diesel-specific Pro-Ride coil springs, 4-Link control arms with conversion mounts, forged drop pitman arm and track bar bracket for steering correction, bump stops, brake line brackets and precision tuned NX2 or FOX 2.0 nitrogen charged shocks. In the rear this kit utilizes a high-strength fabricated lift block, heavy duty air bag spacers, longer u-bolts and a matching set of NX2 Nitro or FOX 2.0 Performance shocks.

Features
  • Fits OE equipped air ride systems only
  • Heavy duty 4-link improve strength, handling and caster control
  • Front high strength progressive rate coil springs for a great ride on any terrain
  • Front track bar relocation bracket to re-position axle
  • Forged drop pitman arm to correct steering angles
  • Front sway bar correction to maintain handling performance
  • HD transmission crossmember and t-case indexing ring to correct front driveline angles and allow use of factory driveshafts
  • BDS NX2 gas or FOX performance series Internal Floating Piston gas shocks to improved ride and offroad performance
  • Nitrogen-charged
  • Twin-tube design
  • 10-stage velocity-sensitive valving
  • Dual-welded ends for increased strength
  • 1-3/8-inch high-flow piston
  • Self-lubricating seals
  • Silver powder coat finish
  • Kits come standard with 6-Bolt indexing ring kit.
Specs
  • Front Lift Method: Coil Spacers
  • Rear Lift Method: Coil Spacers
  • Shocks Included: Yes
  • Front Lift Height: 6 inch
  • Rear Lift Height: 6 inch
Recommended Tire & Wheel Fitment
  • Tire Size: 37x12.5
  • Wheel Diameter: 17x9, 20x9
  • Back Spacing: 5.625/5.625
Notes
  • The carrier bearing drop is necessary for models equipped with two piece rear drive shaft.
  • Some vehicles may require rear driveshaft spacer kit 122007 to maintain adequate rear driveshaft engagement
  • DRW models fit inner wheel clearance to the upper u-bolt plate on 6 inch kits
Includes
  • BDS012403, 2013-2018 Ram 3500 4-Link Box Kit (2of2) (UPC 658848612345)
  • BDS012604, 2013-2018 Ram 3500 6 inch 4-Link Box Kit (1of2) (UPC 658848612703)
  • BDS012618, 2013-2018 Ram 3500 Auto Level Air Suspension 6 inch Rear (UPC 658848612789)
  • BDS032602, 2013-2024 Ram 3500 / 2014-2024 Ram 2500 6 inch Coils - Diesel (UPC 658848616428)
  • BDS122623, 2013-2018 3500/2014-2018 2500 Ram T-Case Index- 6 Bolt (UPC 658848619757)
  • BDS85752, Shock- 27.40 x 16.20 x 2-3/8 - S50/EB2 (UPC 711745609624)
  • BDS85769, Shock- 30.95 x 18.15 x 2-3/8 - EB1/EB1 (UPC 711745609761)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 93910450000

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4.3 ★★★★★
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Big Belly
Natrona Heights, US
★★★★★ 5
Great Air Filter
Size: 9.6" x 11.1" x 2.2"
Some review’s will say “it’s an air filter, blah, blah, blah”. These reviews are written by the same people that think “water is water”. I’m not one of those people. I’ve noticed that the air smells better, cleaner. I’ve also noticed that the air blows a little stronger. It’s very easy to install, fits perfectly and it’s reusable so it saves you money over the long term and it reduces landfill waste.
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Reviewed in the United States on July 4, 2024
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Patrick "Pat" Bickel
Whiting, US
★★★★★ 5
THE cabin air filter to use!
Size: 9.6" x 11.1" x 2.2"
I replaced the OEM cabin air filter when I bought my truck, like I always do. 2019 & 2020 Ram 1500's suffer from an underperforming AC system in the summer due to a blend door in the dash not closing completely. Having any kind of restrictive cabin air filter only exacerbates the problem. I bought this filter on the recommendation of many owners who had done the same with great results. I was presently surprised at the increase in air flow coming out of the vents. I also like that in K7N fashion, it is washable and reusable, effectively making it a lifetime filter. Don't overthink it. Yes it costs more, but you will save $$ in the long run with this filter. I am sure this filter fits many other makes & models of vehicles and will improve the airflow of any vehicle it is installed in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 31, 2024
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Verified Purchase
Rhiannon
Battle Creek, US
★★★★★ 5
Easy to install and fits great
Size: 9.6" x 11.1" x 2.2"
Fits great and seems better quality than any paper filter. Nice rubber edge makes a good seal and the airflow is good. Used in a 2023 Ram 3500. Installation was easy. So far it appears to filter out all the dust and odors.
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Reviewed in the United States on December 16, 2025
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Verified Purchase
Kat L.
Whiting, US
★★★★★ 5
Best replacement filter
Size: 9.6" x 11.1" x 2.2"
Great quality replacement for factory filter, fits snug, very easy installation, and the performance is on par.
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Reviewed in the United States on February 11, 2026
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Pam Volden
Port Orchard, US
★★★★★ 5
Best air flow
Size: 9.6" x 11.1" x 2.2"
I have a 2022 ram 1500 four-door. The factory filter from the ram dealer is about $40 but it’s not reusable. That was the only one I found that had good airflow into the cabin. I tried several other brands but the airflow was reduced excessively. The ram filter was 15 mph, most of the other aftermarkets dropped the airflow to about 9 mph. I just installed a K&N reusable filter and the airflow is back up to 15 mph. Great job K&N!!
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Reviewed in the United States on March 27, 2026

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