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

  • September 11, 2025
  • 6 min read
Five Jeep Shock Upgrades Every Owner Should Know About
Discover the best shocks to transform your Jeep Wrangler’s ride. From budget-friendly upgrades to premium performance options, here are five top picks Jeep owners trust.
READ MORE
  • September 9, 2025
  • 7 min read
How To Keep Your Soft Top Windows Safe
Removable soft top side and rear windows are a great option for those nice days. When you do, here is how to keep them from getting damaged.
READ MORE
  • September 5, 2025
  • 4 min read
Seven Slot Dispatch 9.5.2025
Weekly Jeep-related news items from around the industry and community.
READ MORE
  • September 3, 2025
  • 6 min read
Top Overlanding Questions Answered: Building Your Adventure, Your Way
Overlanding blends off-road travel, self-reliance, and adventure. Learn the essentials to make your Jeep ready for the journey.
READ MORE
  • September 2, 2025
  • 4 min read
What Is Jeep’s Off-Road Plus Mode and When Should You Use It?
Learn how Off-Road Plus fine-tunes your Jeep’s traction, throttle, and transmission for maximum control on sand, rocks, and rough trails.
READ MORE
  • August 29, 2025
  • 4 min read
Seven Slot Dispatch 8.29.2025
Weekly Jeep-related news items from around the industry and community.
READ MORE
  • August 26, 2025
  • 4 min read
Spare Tire Delete: The Pros and Cons for Your Jeep Wrangler or Gladiator
Ditching the rear spare is more than just a look—it’s about performance, practicality, and personal preference.
READ MORE
  • August 25, 2025
  • 3 min read
Day Five at the Smoky Mountain Jeep Invasion: The Jeep Spirit Takes Over Pigeon Forge
From the Great Smoky Mountain Parkway parade to late-night parking lot meetups, Jeep life spills beyond the LeConte Center and into the heart of town.
READ MORE