JKS JSPEC123PES 3.5in J-Konnect FOX 2.5 Elite Lift Kit 2018-2026 Wrangler JL

Vehicle Fitment

• 2018-2026 Jeep Wrangler JL Unlimited 4-Door (Sport, Sport S, Sahara, Rubicon, Willys, High Altitude, Freedom), 4WD

Fitment Notes

• Does not fit 2021-2026 Jeep Wrangler JL 4xe models - see JKS 4xe-specific lift kit
• Does not fit Wrangler JL Rubicon 392 models - see JSPEC159PES for Diesel/392 applications
• 4-Door (Unlimited JL) only - for 2-Door Wrangler JL J-Konnect 3.5" FOX 2.5 Elite see JSPEC124PES
• Factory wheels cannot be reinstalled without wheel spacers after lift
• HD front springs recommended for builds with aftermarket winch and bumper combination
• HD rear springs recommended for builds with rear-mounted full-size spare tire, roof rack, or heavy accessories
• Maximum recommended tire size: 35x12.50 on 17x9, 18x9, or 20x9 wheels with 5" backspacing (Sport/Sahara/Willys); 37x12.50 (Rubicon with 5" backspacing)
• HD Rate Coil Spring upgrade available at time of order for added payload capacity

Features

• JSPEC dual-rate front and rear coil springs (standard or HD rate) tuned specifically for the 4-Door JL platform at 3.5" lift
• FOX 2.5 Performance Elite Series shocks with external reservoirs and DSC dual-speed compression adjusters for user-tunable damping on and off road
• 2.5" diameter 6061-T6 hard-anodized aluminum shock bodies for superior heat dissipation and corrosion resistance
• Front and rear J-Link lower control arms (heavy-duty 2" x .250-wall DOM tubing) correct front caster and rear wheelbase with serious strength over factory arms
• OE-style rubber bushings at both J-Link arm ends minimize NVH for a quiet, street-friendly ride
• JKS front adjustable track bar and rear track bar bracket correct axle positioning at lifted ride height
• JKS2033 Quicker Disconnect front sway bar links unlock up to 30% more front axle articulation on the trail
• Rear extended sway bar links correct operating angle and improve strength at lifted height

Specifications

• Lift Height: 3.5 inches
• Platform: Jeep Wrangler JL Unlimited 4-Door (2018-2026)
• System Level: J-Konnect with FOX 2.5 Performance Elite Series shocks (top-tier shock option)
• Front Shock: FOX 2.5 Performance Elite - PN 883-26-051 (2.5" remote reservoir, DSC adjuster, 3.5-4" lift)
• Rear Shock: FOX 2.5 Performance Elite - PN 883-26-055 (2.5" remote reservoir, DSC adjuster, 3.5-4" lift)
• Shock Body: 2.5" impact extruded CNC-machined 6061-T6 aluminum, hard anodized
• Shock Shaft: 7/8" extreme-duty hard chrome and heat-treated alloy steel
• Shock Damping: FOX DSC dual-speed compression adjuster (user-adjustable high and low speed)
• Control Arm Construction: 2" x .250-wall DOM tubing, fixed length J-Link lower arms (JKS1671)
• Spring Type: JSPEC dual-rate coil springs - Standard or HD Rate option
• Max Recommended Tire Size: 35x12.50 (Sport/Sahara/Willys); 37x12.50 (Rubicon)
• Recommended Wheel Backspacing: 5 inches
• Installation Type: Bolt-on, no cutting or drilling
• Warranty: Limited Lifetime (JKS components); FOX Shocks covered by FOX limited warranty
• Made in USA

Included Components

• 2x JSPEC Dual-Rate Front Coil Springs (Standard or HD Rate)
• 2x JSPEC Dual-Rate Rear Coil Springs (Standard or HD Rate)
• 2x FOX 2.5 Performance Elite Front Shocks with external reservoir and DSC adjuster - PN 883-26-051
• 2x FOX 2.5 Performance Elite Rear Shocks with external reservoir and DSC adjuster - PN 883-26-055
• 2x Front J-Link Lower Control Arms (fixed length, 2" x .250-wall DOM - JKS1671)
• 2x Rear J-Link Lower Control Arms (fixed length, 2" x .250-wall DOM - JKS1671)
• 1x JKS Front Adjustable Track Bar (JKS1621)
• 1x Rear Track Bar Bracket
• 1x Pair JKS2033 Quicker Disconnect Front Sway Bar Links
• 1x Pair Rear Extended Sway Bar Links
• 1x Set Front and Rear Bump Stop Extensions
• 1x Installation hardware pack

Product Description

The JKS JSPEC123PES is the FOX 2.5 Performance Elite variant of the 3.5" J-Konnect suspension system for the 2018-2026 Jeep Wrangler JL Unlimited 4-Door. Every component is identical to the JSPEC123KFA, with one critical upgrade: the FOX 2.5 Performance Elite Series shocks. These 2.5"-diameter remote reservoir monotube shocks feature hard-anodized 6061-T6 aluminum bodies, 7/8" extreme-duty chrome shafts, and FOX's DSC dual-speed compression adjuster - allowing the driver to independently tune high-speed and low-speed compression damping to match driving conditions. The external reservoir increases oil and nitrogen capacity for fade-free performance during sustained high-impact off-road use.

Underneath the premium shocks, the J-Konnect foundation remains the same proven package: JSPEC dual-rate coil springs matched to the 4-Door JL at 3.5" lift, front and rear J-Link lower control arms fabricated from 2" x .250-wall DOM tubing, a JKS front adjustable track bar, JKS2033 Quicker Disconnect sway bar links, and rear extended sway bar links. HD rate springs are available at order time for heavier builds. At 3.5" of lift, Sport and Sahara models fit up to 35x12.50 tires, and Rubicon models fit up to 37x12.50. Does not fit 4xe or Rubicon 392 models.