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Fabtech K4140M 5″ Trail System With Stealth Shocks

2018-2025 Jeep Wrangler 4-Door JL 4WD
Fabtech K4140M 5″ Trail System With Stealth Shocks
2438.43In stock
2018-2025 Jeep Wrangler 4-Door JL 4WD

Trail Lift System

  • Brand : Fabtech
  • SKU : BKBNK4140M
  • Part Number : K4140M
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Product Details

This 5″ Trail System for the 2018–2025 Jeep JL 4WD (4-door) is engineered to deliver exceptional suspension performance across all forms of off-highway use, including rock crawling, aggressive trail driving, and long-distance overland travel. On the road, the system provides a smooth and controlled ride thanks to properly tuned Dual Rate coil springs and precision shock valving that enhance overall comfort and stability.

This complete short-arm suspension utilizes the factory control arm mounts for straightforward installation. Fabtech’s heavy-duty link arms are built from 1.75″ OD, .250″ thick-wall steel tubing that is guaranteed not to bend. These arms feature large polyurethane bushings on one end and internal threads on the other to accept Fabtech’s groundbreaking 5 Ton Joint®, providing long-term durability, excellent articulation, and quiet operation on and off the trail.

Fabtech’s long-travel, corner-specific Dual Rate coil springs keep the Jeep level from side to side while maximizing suspension articulation. The first stage of the spring delivers a soft, comfortable ride with increased travel capability, while the second stage supports vehicle payload and absorbs larger impacts during high-speed off-road driving.

To correct steering geometry at the increased ride height, the system includes a Draglink Flip assembly and heavy-duty Track Bar bracket. This combination repositions the steering linkage back into proper alignment, allowing full articulation without draglink binding. Because the draglink maintains its factory angle relative to the pitman arm, there is no added side load on the steering box sector shaft—an advantage over dropped pitman arm setups—helping extend steering box lifespan.

The heavy-duty rear Track Bar bracket with side support maintains the factory roll center and properly centers the axle, improving stability and handling. Front and rear bump stop extensions protect the suspension and driveline from over-cycling during full compression.

Every component in this system has been engineered for strength, reliability, and performance. This makes the 5″ Trail System a top choice for daily drivers who enjoy challenging off-road trails and overlanding adventures while benefiting from a high-quality, well-designed suspension system under their Jeep.

CONTROL LINK ARMS

Proper factory bushing cross bolt angles are parallel on Fabtech Short Arm link arms eliminating premature bushing wear resulting in poor handling.

  • This system replaces the four lower link arms due to their vulnerability to offroad obstacles and include the massive Fabtech 5 Ton Joints® with a lifetime warranty.
  • 1.75″ OD. .250″ thick wall Link Arms guaranteed not to bend.

DUAL RATE LONG TRAVEL COIL SPRINGS

Corner specific Dual Rate coils springs provide a level stance side to side and offer factory load carrying capacity with a smooth ride.

As a true dual rate coil, the first stage of the coil allows the spring to respond to small bumps for a very complaint ride at lower speeds. As the spring travels further, the rate increases to absorb larger impacts and support additional cargo of the vehicle.

These springs are the best on the market for all around driving while providing increased suspension travel for offroad use.

DRAGLINK FLIP SYSTEM

A heavy duty draglink is relocated on the steering knuckle to retain the factory steering geometry with the stock pitman arm. It provides bind free operation at full articulation and eliminates bump steer throughout the travel. It does not increase load on the steering box like a dropped pitman arm can.

FRONT TRACK BAR BRACKET

To work in conjunction with the Draglink Flip System, the front Track Bar is relocated to the proper operating plane with a 1/4″ thick steel bracket that bolts to the axle housing for a lifetime of trouble free use.

REAR TRACK BAR BRACKET

A bolt on 1/4″ thick steel bracket is built to eliminate mount deflection when the track bar moves through its full cycle. It relocates the factory track bar to retain the important factory roll center.

BUMP STOP EXTENSIONS

Front and rear bump stop extensions keep the suspension from over cycling with the increased ride height preventing damage to steering and suspension parts. The extensions utilize the factory closed cell cushions for a progressive stop at the end of the suspension travel.

SWAY BAR LINKS

The extended length front and rear sway bar links with urethane bushings reposition the bars to work within the factory operating planes. These links are provided to eliminate the sway bar from going over center and creating link bind at full extension travel.

Parking Brake Bracket

Even small details like relocating the parking brake cable with an extension bracket is included to prevent premature engagement due to increased ride height and wheel travel.

STEALTH SHOCKS

These extended length monotube shocks have a nitro carborized piston rod for corrosion resistance and resist rock chipping. Stealth shocks have a great highway ride with good offroad damping capacity.

Fabtechs development capabilities are second to none with over 20 years of experience in aftermarket suspension design. State of the art software fabrication equipment along with our seasoned engineers and fabricators a

Trail Lift System; 5 in. Lift; w/Stealth Shocks;;

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Fitment

YearsMakeModelDrive
2018-2025JeepWrangler 4-Door JL4WD

Features

  • Front & Rear Dual Rate Coil Springs deliver extended travel, improved ride quality, and balanced load support across varying terrain conditions
  • Front & Rear Lower 5 Ton Link Arms provide unmatched strength and articulation, built from heavy-duty steel tubing for long-term durability
  • Front & Rear Bump Stop Extensions prevent suspension over-cycling and ensure controlled compression to protect key components
  • Front & Rear Track Bar Bracket maintains proper axle centering and factory roll center for stable handling at increased ride heights
  • Heavy Duty Flipped Draglink corrects steering geometry, prevents binding at full articulation, and reduces stress on steering components
  • Front & Rear Sway Bar Links reposition sway bars to proper operating angles, enhancing stability and eliminating binding at full droop
  • Front Shock Mount Bracket improves shock positioning for increased travel and more effective suspension performance
  • Front & Rear Stealth Monotube Shocks provide consistent damping, enhanced stability, and reliable ride control on and off the road

Components

  • 1 × FTS24223 – Coil Kit
  • 1 × FTS24208 – Link Arms
  • 1 × FTS24231 – Component Box
  • 1 × FTS24210 – Drag Link Kit
  • 2 × FTS6354 – Front Stealth Monotube
  • 2 × FTS6355 – Rear Stealth Monotube

STEALTH MONOTUBE SHOCK

Stealth is the first all black monotube shock absorber, with an identifiable raised metal nameplate, that represents the signature of quality you can rely on for a superior ride at an affordable price.

Stealth monotube shocks are built with a 46mm diameter high flow piston and vehicle specific valving, for a great ride with oversized tires.

All Stealth shock absorbers feature Nitrocarburized piston rods that are superior to chromed rods in durability and corrosion resistance. These Nitrocarb piston rods are finished in matte black for a complete black out shock package.

  • 50mm OD Seamless Steel Body
  • 46mm High Flow Piston for best ride
  • Vehicle specific valving designed for oversized tires
  • Full floating piston separates gas from oil for a consistent ride
  • 14mm Nitrocarb piston rod resists rock chips and rusting
  • All black finish with raised nameplate as a signature of quality

Quick Specs

Stock Fenders
  • Tire Size – 37/12.50R17 Wheel Size – 17X9 w/ 4.5in BS w/minor trimming
  • Tire Size – 37/12.50R18 Wheel Size – 18X9 w/ 4.5in BS w/minor trimming
  • Tire Size – 37/12.50R20 Wheel Size – 20X9 w/ 5in BS w/minor trimming
Tube Fenders
  • Tire Size – 37/12.50R17 Wheel Size – 17X9 w/ 4.5in BS w/no trimming
  • Tire Size – 40/13.50R17 Wheel Size – 17X9 w/ 4.5in BS w/cutting
  • Part Number : K4140M

Important Notes

  • California Prop 65 Warning
  • 185. Fits 4-door models only.
  • 189. Heavy offroad use requires driveshafts 4 door model Front (FTS94057) Rear (FTS94065).
  • 224. Does not fit 4XE models.
  • 225.Does not fit Rubicon 392 models.

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