KYB
Gas-a-just

KYB 5550020 Suspension Shock Absorber - Front

Brand KYB 5550020
Position Front
Compressed Length 17.05
Extended Length 26.77
Stroke Length 9.72
Lower Mount Type E2(12.8x40)
Upper Mount Type E2(12.8x70)
Dust Cover Included Y
9783 N
9908 Y
Product line Gas-a-just
Fits Jeep · 7 vehicles

Monotube design. Separates hydraulic and gas chambers for responsive control and consistent performance.

Fade-resistant performance. High-pressure nitrogen gas helps prevent aeration during demanding driving.

Dust cover included. Adds protection for the shock absorber assembly.

$89.23Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

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Step 2 — Quantity
Suspension Shock Absorbers are typically replaced in pairs, axle by axle.
Order total $89.23
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

KYB Gas-a-just Front Shock for Wrangler

The KYB Gas-a-just 5550020 is a front suspension shock absorber for 2018-2024 Jeep Wrangler models with a 2 inch to 3 inch lift. This monotube design uses separate hydraulic and gas chambers to deliver responsive damping for daily driving and added control when road conditions change.

Gas-a-just Performance Details

KYB Gas-a-just shocks are built around a monotube layout that separates the working fluid from the high-pressure nitrogen gas charge. That design helps maintain consistent damping without aeration-related fade, while the floating piston supports a controlled ride during normal use and quicker response when suspension demand increases. Part number 5550020 is sized with a compressed length of 17.05 inches, extended length of 26.77 inches, and 9.72 inches of stroke for the listed front application.

  • Fits 2018-2024 Jeep Wrangler, front, with 2 inch to 3 inch lift
  • Monotube shock absorber design for consistent damping response
  • Air-free hydraulic working area for control and responsiveness
  • High-pressure nitrogen gas chamber for ride support under changing loads
  • Lower mount type: E2(12.8x40)
  • Upper mount type: E2(12.8x70)
  • Dust cover included

What This Shock Absorber Helps Address

  • Front-end bounce after bumps or dips
  • Excessive body movement on lifted suspension setups
  • Reduced damping consistency from heat and aeration in worn shocks
  • Loose or unsettled steering feel over uneven pavement
  • Loss of ride control on a Jeep Wrangler with a 2 inch to 3 inch lift

Installation Notes and Fitment

Fits 2018-2024 Jeep Wrangler, front, with 2 inch to 3 inch lift. Verify compressed length, extended length, and mount style against the vehicle’s suspension setup before installation. Part number 5550020 is intended for the front position only and should be matched to the listed lift range for proper suspension travel.

Quality Assurance

KYB manufactures the Gas-a-just line as a performance-oriented monotube shock absorber series. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2024JeepWranglerFrontw/ 2 inch to 3 inch Lift; Gas-a-just
2023JeepWranglerFrontw/ 2 inch to 3 inch Lift; Gas-a-just
2022JeepWranglerFrontw/ 2 inch to 3 inch Lift; Gas-a-just
2021JeepWranglerFrontw/ 2 inch to 3 inch Lift; Gas-a-just
2020JeepWranglerFrontw/ 2 inch to 3 inch Lift; Gas-a-just
2019JeepWranglerFrontw/ 2 inch to 3 inch Lift; Gas-a-just
2018JeepWranglerFrontw/ 2 inch to 3 inch Lift; Gas-a-just