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Jeep 2007-2011 Wrangler Unlimited JK Specifications


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) 205 hp (153 kW) @ 5,200 rpm (53.9 hp/L)
Torque (SAE net) 240 lb.-ft. (325 N•m) @ 4,000 rpm
Fuel Recommendation Unleaded regular, 87 octane (R+M)/2
Oil Capacity 6 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

Electrical

Alternator 160A
Battery 600 CCA, maintenance-free

Transmission: NSG 370 - 6 Speed ManualTransmission

Availability Std.—All models
Description Synchronized in all forward gears and reverse,
multi-rail shift system with top-mounted shift lever
Clutch Hydraulic actuation
Gear Ratios
1st 4.46
2nd 2.61
3rd 1.72
4th 1.25
5th 1.00
6th 0.84
Reverse 4.06
Axle Ratio 3.21 Std., 4.10 Opt. (Std. on Rubicon)
Overall Top Gear 2.69 Std., 3.44 Opt. (Std. on Rubicon)

Transmission:  42RLE - Automatic Four Speed w/ Overdrive

Availability Optional
Description Electronic governor, electronically controlled converter clutch
Gear Ratios
1st 2.84
2nd 1.57
3rd 1.0
4th 0.69
Reverse 2.21
Axle Ratio 4.10
Overall Top Gear 2.83

Transfer Case:  NV241 Rock-Trac

Type Part-time
Operating Modes 2WD High; 4WD High;
Neutral; 4WD Low
Low Range Ratio 4.0:1
Center Differential Type None

Transfer Case:  NV241 Rock-Trac

 
Type Part-time
Operating Modes 2WD High; 4WD High;
Neutral; 4WD Low
Low Range Ratio 2:72:1
Center Differential Type None

Dimensions

General Overall Length 173.4 (4404.4)
Overall Width (without mirrors) 73.9 (1877.1)
Height 70.9 (1800.9)
Wheelbase 116.0 (2946.4)
Track, Front 61.9 (1572.3)
Overhang, Front 26.7 ( 678.2)
Overhang, Rear 30.6 ( 777.2)
Maximum Payload (includes occupants and cargo) 1000 lbs. (454 kg)

Clearances

P225/75R16
Tire
P245/75R16
Tire
P255/75/R17
Tire
P255/70R18
Tire
LT255/75R17
Tire
Approach Angle Deg. 40.6 42.1 43.6 44.4 44.4
Breakover Angle Deg. 17.8 19 20.3 20.9 20.8
Departure Angle Deg. 37.5 38.8 40.3 40.7 40.5
Front Axle to ground 9.0 (228.6) 9.6 (243.8) 10.2 (259.1) 10.5 (266.7) 10.5 (266.7)
Rear Axle to ground 8.7 (221.0) 9.3 (236.2) 10.0 (254.0) 10.2 (259.1) 10.1 (256.5)

Curb Weight

Wrangler Unlimited X, Man. Trans 4075 lbs. (1848 kg)
Wrangler Unlimited X Auto. Trans 4100 lbs. (1860 kg)
Wrangler Unlimited Sahara, Man. Trans 4269 lbs. (1936 kg)
Wrangler Unlimited Sahara, Auto. Trans 4294 lbs. (1948 kg)
Wrangler Unlimited Rubicon, Man. Trans 4315 lbs. (1957 kg)
Wrangler Unlimited Rubicon, Auto. Trans 4340 lbs. (1969 kg)

Accommodations

Seating Capacity, F/R 2/3
Front
Headroom 41.3 (1049.0 mm)
Legroom 41.0 (1041.4 mm)
Shoulder Room 55.8 (1417.3 mm)
Hip Room 55.8 (1417.3 mm)
Seat Travel Driver – 9.055 (230.0mm), passenger – 9.055 (230.0mm)
Front Volume Index, cubic ft. (cu. m) 54.6 (1.55 cu. m)
Rear
Headroom 40.4 (1026.2 mm)
Legroom 37.2 ( 944.9 mm)
Shoulder Room 56.8 (1442.7 mm)
Hip Room 56.7 (1440.2 mm)
Rear Seat Volume Index, cubic ft. (cu. m) 49.4 (1.40 cu. m)
Cargo Liftover Height 31.4 ( 797.6 mm)
Maximum Cargo Width at Swing Gate Opening 58.7 (1491.0 mm)
Minimum Cargo Width at Swing Gate Opening 41.2 (1046.5 mm)
Maximum Cargo Height at Swing Gate Opening 37.1 ( 942.3 mm)
Minimum Cargo Height at Swing Gate Opening 37.0 ( 939.8 mm)
Distance between wheelhouses 44.7 (1135.4 mm)
Cargo Volume cubic ft. (cu. m)
Rear Seat Folded 86.75 (2.46 cu. m)
Rear Seat Upright 46.43 (1.31 cu. m)

Body & Chassis

Layout Longitudinal front engine, four-wheel drive & two-wheel drive
Construction Ladder-type frame, open steel body

Suspension

Front Live axle, leading arms, track bar, coil springs, stabilizer bar,
low-pressure (on 16-inch wheel packages) gas-charged shock absorbers—std.;
Monotube high-pressure (on 17- and 18-inch wheel packages)
gas-charged shock absorbers—std.;
Electronic Sway Bar Disconnect System (ASDS) opt.
Rear Live axle, trailing arms, track bar, coil springs, stabilizer bar,
low-pressure (on 16-inch wheel packages) gas-charged shock absorbers—std.;
Monotube high-pressure (on 17- and 18-inch wheel packages)
gas-charged shock absorbers—std.

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

Chassis

Availability Std. All
Power Assist Type 8 x 9 dual-diaphragm vacuum
Four-Wheel Anti-Lock with on- and off-road calibrations Std.
Electronic Stability Program (ESP) Std.
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 inches/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 inches/caliper

Wheels

Availability X Standard
Type and Material Painted Steel
Size 16 x 7.0
Availability X Optional
Type and Material Painted Cast Aluminum
Size 16 x 7.0
Availability Sahara Standard
Type and Material Painted Cast Aluminum
Size 17 x 7.5
Availability Rubicon Standard
Type and Material Machined Cast Aluminum
Size 17 x 7.5
Availability Sahara Optional
Type and Material Painted Cast Aluminum
Size 18 x 7.5

Tires

Availability X Std.
Size and Type P225/75R16, On/Off-road, Black Side Wall
Mfr. and Model Goodyear Wrangler ST
Revs per Mile (km) 712 (1146)
Availability X Optional
Size and Type P245/75R16, On/Off-road, Black Side Wall
Mfr. and Mode Goodyear Wrangler SRA
Revs per Mile (km) 687 (1106)
Availability Sahara Standard
Size and Type P255/75R17, On/Off-road, Outlined White Lettered
Mfr. and Model Goodyear Wrangler SRA
Revs per Mile (km) 661 (1064)
Availability Sahara Optional
Size and Type P255/70R18, On/Off-road, Outlined White Lettered
Mfr. and Model Bridgestone Dueler 693
Revs per Mile (km) 653 (1051)
Availability Rubicon Standard
Size and Type LT255/75R17, Off-Road, Black Side Wall
Mfr. and Model B.F. Goodrich Mud Terrain
Revs per Mile (km) 650 (1046)


Courtesy of Daimler Chrysler Press Release