Truck Trend is the source for official specifications, payload, towing capacity, and other information that matters to real truck users. Check out the latest info for the 2011 Jeep Wrangler Unlimited. The Wrangler Unlimited is a Four-door sport-utility vehicle that features a 3.8-LITER V-6 engine with 201-hp @ 5,200 rpm and 237 lb.-ft. torque @ 4,000 rpm.

2011 Jeep Wrangler Unlimited Technical Specifications
GENERAL INFORMATION
Body Style Four-door sport-utility vehicle
Assembly Plant Toledo North Assembly Plant, Ohio
EPA Vehicle Class Multi-purpose vehicle
Introduction date 1987 Model Year
Layout Longitudinal front engine, four-wheel drive and two-wheel drive
Construction Ladder-type frame, open steel body
ENGINE:
  3.8-LITER, OHV, 12-VALVE SMPI V-6
Availability Standard
Type and Description Six-cylinder, 60* V-type, liquid-cooled
Displacement 230.5 cu. in. (3778 cu. cm)
Bore x Stroke 3.78 x 3.43 (96 x 87)
Valve System OHV, 12 valves, roller followers, hydraulic lifters
Fuel Injection Sequential, multi-port, electronic
Construction Cast-iron block, aluminum alloy heads
Compression Ratio 9.6:1
Power (SAE net) 202 hp (151 kW) @ 5,200 rpm (53.9 hp/L)
Torque (SAE net) 237 lb.-ft. (321 N*m) @ 4,000 rpm
Fuel Recommendation Unleaded regular, 87 octane (R+M)/2
Oil Capacity 6.0 qt. (5.7L) plus filter
Coolant Capacity 13.36 qt. (12.64L) Std.
Emission Controls * Three-way catalytic converter, heated oxygen sensors, electronic EGR and internal engine features
* Manual transmission meets Tier 2 Bin 5 (federal) and LEV II (CA) emission requirements
* Automatic transmission meets Tier 2 Bin 5 (federal) and ULEV II (CA) emission requirements
EPA Fuel Economy mpg (City/Hwy) 15/19--4WD
ELECTRICAL SYSTEM
Alternator 140-amp
Battery 600 CCA, maintenance-free
TRANSMISSION:
  NSG 370--MANUAL, SIX-SPEED OVERDRIVE 42RLE--AUTOMATIC, FOUR-SPEED OVERDRIVE WITH VARIABLE LINE PRESSURE
Availability Standard--All 4x4 models Standard--4x4 models
Description Synchronized in all forward gears and Reverse, multi-rail shift system with top-mounted shift lever Electronic governor, electronically controlled converter clutch
Clutch Hydraulic actuation --NA
Gear Ratios
1st 4.46 2.84
2nd 2.61 1.57
3rd 1.72 1
4th 1.25 0.69
5th 1 --
6th 0.84 --
Reverse 4.06 2.21
Axle Ratio 3.21 standard, 3.73 optional (4.10 Rubicon) 3.73
Overall Top Gear 2.53 standard, 2.95 optional (3.24 Rubicon) 2.57
TRANSFER CASE:
  NV241 COMMAND-TRAC(R) NV241OR ROCK-TRAC(R)
Type Part-time Part-time, heavy-duty
Operating Modes 2WD High; 4WD High; Neutral; 4WD Low 2WD High; 4WD High; Neutral; 4WD Low
Low-range Ratio 2.72:1 4.0:1
Center Differential Type None None
SUSPENSION
Front Live axle, leading arms, track bar, coil springs, stabilizer bar, low-pressure (on 16-in. wheel packages) gas-charged shock absorbers--standard
Monotube high-pressure (on 17- and 18-in. wheel packages)
gas-charged shock absorbers--standard
Electronic Sway-bar Disconnect System--optional
Rear Live axle, trailing arms, track bar, coil springs, stabilizer bar, low-pressure (on 16-in. wheel packages) gas-charged shock absorbers--standard
Monotube high-pressure (on 17- and 18-in. wheel packages)
gas-charged shock absorbers--standard
STEERING
Type Power, recirculating ball with damper
Overall Ratio 14.7:1 overall
Turning Diameter (curb-to-curb) 41.2 ft. (12.56 m) with 225/75R16 tires
Steering Turns (lock-to-lock) 3.5
BRAKES
Availability Standard All
Power-assist Type 8 x 9 dual-diaphragm vacuum
Parking Brake Type Drum-in-hat
Front Size and Type 11.9 x 1.1 (302 x 28) vented rotor with 2.6 (66) single-piston floating caliper
Swept Area (Total Front) 220.6 in./caliper
Rear Size and Type 12.44 x 0.47 (316 x 12) solid rotor with 1.9 (48) single-piston floating caliper
Swept Area (Total Rear) 207.7 in./caliper