Chat with us, powered by LiveChat 2018 Jeep Wrangler JK Specs | Quadratec Skip to main content
Reference

Jeep Wrangler 2018 JK Specifications

Powertrain

ENGINE CYLINDERS HORSEPOWER TORQUE FUEL TANK CAPACITY EPA MILEAGE ESTIMATE
3.6L Pentastar 6 285 hp @ 6,400 RPM 260 lb/ft @ 4,800 RPM 18.6 Gal. (2dr), 21.6 Gal. (4dr) 17 City / 19 Hwy

Drivetrain & Axles

MODEL DRIVETRAIN TRANSFER CASE FRONT AXLE REAR AXLE
Sport 4x4 NV231 Command-Trac DANA 30 (181 mm) DANA 44 (216 mm)
Sahara 4x4 NV231 Command-Trac DANA 30 (181 mm) DANA 44 (216 mm)
Rubicon 4x4 NV231 Rock-Trac DANA 44 (216 mm) DANA 44 (216 mm)

Weight Capacity

MODEL MAXIMUM TOWING MAXIMUM PAYLOAD CURB WEIGHT
Sport 2000 lbs (2 Door), 3500 lbs (4 Door) 1000 lbs (2 Door), 1190 lbs (4 Door) 3879 lbs (2 Door), 4101 lbs (4 Door)
Sahara 2000 lbs (2 Door), 3500 lbs (4 Door) 880 lbs (2 Door), 996 lbs (4 Door) 4055 lbs (2 Door), 4295 lbs (4 Door)
Rubicon 2000 lbs (2 Door), 3500 lbs (4 Door) 892 lbs (2 Door), 1087 lbs (4 Door) 4132 lbs (2 Door), 4341 lbs (4 Door)

Transmission

MODEL TRANSMISSION SPLINE
W5A580 5-speed Automatic 23 OUT
NSG370 6-speed Manual 10 IN / 23 OUT

Exterior Dimensions

MODEL LENGTH BODY WIDTH BODY HEIGHT WHEELBASE GROUND CLEARANCE
Sport 163.8" (2 door), 173.4" (4 door) 73.7" (2 door), 73.9" (4 door) 72.5" (2 door), 70.8" (4 door) 95.4" (2 door), 116" (4 door) 8.8" (2 door), 8.7" (4 door)
Sahara 163.8" (2 door), 173.4" (4 door) 73.7" (2 door), 73.9" (4 door) 72.5" (2 door), 72.3" (4 door) 95.4" (2 door), 116" (4 door) 10.3" (2 door), 10.2" (4 door)
Rubicon 163.8" (2 door), 173.4" (4 door) 73.7" (2 door), 73.9" (4 door) 72.5" (2 door), 72.2" (4 door) 95.4" (2 door), 116" (4 door) 10.2" (2 door), 10.1" (4 door)

Exterior Paint Color Codes

MODEL COLOR CODE
Granite Crystal PAU
Xtreme Purple PHG
Hypergreen PJK
Chief PQB
Firecracker Red PRC
Billet Silver PSC
Rhino PSQ
Gobi PUA
Bright White PW7
Black PX8

Top Jeep Articles

  • May 13, 2026
  • 3 min read
Jeep Debuts Canada-Exclusive Wrangler Rocky Mountain 392 With HEMI V-8 Power
The latest Twelve 4 Twelve special edition gives Canadian Jeep fans a Wrangler 392 packed with V-8 performance, exclusive styling details, and open-air capability.
READ MORE
  • May 12, 2026
  • 3 min read
Jeep Unveils Wrangler America250 Edition With Patriotic Styling and Captain America Collaboration
Jeep’s seventh Twelve 4 Twelve special edition celebrates America’s 250th anniversary with red, white and blue styling, Willys capability, and an exclusive Marvel collaboration.
READ MORE
  • May 11, 2026
  • 3 min read
Jeep Brand Celebrates 25 Straight Years as America’s Most Patriotic Brand
The Jeep brand maintains an unmatched streak at the top of the annual Brand Keys rankings while continuing its deep connection to American freedom, military heritage, and adventure culture.
READ MORE
  • May 7, 2026
  • 10 min read
Top Products For Your Quadratec Gift Card
If you have a Quadratec gift card just asking to be redeemed, well, here are the most innovative ways to turn it into real Jeep upgrades. From power and lighting to recovery gear and trail-ready essentials.
READ MORE
  • May 5, 2026
  • 4 min read
Mother’s Day Jeep Gift Ideas That Actually Make Every Drive Better
From interior protection and open-air comfort to trail-ready gear and everyday upgrades, these practical Jeep accessories are perfect for moms who love life behind the wheel.
READ MORE
Red Jeep Wrangler with a black soft top against a white background
  • May 4, 2026
  • 5 min read
What Is The Best Material For A Jeep Wrangler Soft Top?
A Jeep soft top isn't just a one-size-fits-all application. And one of the most important things to consider before purchasing is what kind of material makes up that top. Here are some of the most important material differences.
READ MORE
Light blue Wrangler Rubicon with a desert background
  • April 29, 2026
  • 3 min read
One Million Strong: Jeep Rubicon Hits Major Milestone After Two Decades of Trail Dominance
From its trail-built debut in 2003 to today’s Wrangler and Gladiator models, the Rubicon badge continues to define factory off-road capability.
READ MORE
  • April 29, 2026
  • 5 min read
Best Jeep Wrangler Bumpers: Top 5 Picks for Style, Protection, and Off-Road Performance
From budget-friendly stubby designs to full-width protection and lightweight winch-ready options, these five Jeep Wrangler bumpers cover every type of build and driving style.
READ MORE
Orange Jeep with a forest background
  • April 29, 2026
  • 7 min read
How to Choose the Best Jeep Lift Kit
Everything you need to know about Jeep lift kits, from types and sizes to tire fitment, supporting mods, and how to choose the right setup for your build.
READ MORE