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

  • October 27, 2025
  • 6 min read
Top Five Jeep Interior Products
You spend plenty of time inside your Jeep, so here are some extremely popular interior items you should consider this holiday season.
READ MORE
Orange Jeep Recon with a mountain background
  • October 24, 2025
  • 4 min read
Seven Slot Dispatch 10.24.2025
Weekly Jeep-related news items from around the industry and community.
READ MORE
Jeep tire size conversion chart for Wrangler and Gladiator
  • October 23, 2025
  • 3 min read
Jeep Tire Size Calculator & Conversion Guide: Metric to Standard Wheel Sizes
Easily convert metric tire sizes to standard inches and find the perfect fit for your Jeep Wrangler, Gladiator, or Cherokee.
READ MORE
  • October 22, 2025
  • 6 min read
Jeep Aftermarket Wheels Q&A
Important 'must know' information to help you decide which Jeep wheels are best for you.
READ MORE
Orange Jeep showing a tire and wheel.
  • October 17, 2025
  • 5 min read
How to Choose the Best Jeep Wheels for Your Wrangler or Gladiator
Knowing you need new wheels isn't always enough when it comes time for a swap. Size, offset, backspacing and even weight should all be considered before making a choice.
READ MORE
Rebelle Rally competitor checking a gps location next to an event flag
  • October 17, 2025
  • 3 min read
Seven Slot Dispatch 10.17.2025
Weekly Jeep-related news items from around the industry and community.
READ MORE
A red Jeep Wrangler on a white background with a black soft top.
  • October 14, 2025
  • 5 min read
Factory vs Frameless Jeep Soft Tops: Pros, Cons, and Buying Tips
Frameless soft tops are a popular option these days and do have some differences from the factory soft top.
READ MORE