JK Specifications

Jeep JK Wrangler, 2007-2011

ENGINE: 3.8 Liter, OHV, 12-Valve SMPI V-6

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 Meets Tier 2 Bin 5 (federal) and LEV 2 (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 Command-Trac
Type Part-time
Operating Modes 2WD High; 4WD High; Neutral; 4WD Low
Low Range Ratio 2.72:1
Center Differential Type None
 Transfer Case:  NV241OR Rock-Trac
Type Part-time
Operating Modes 2WD High; 4WD High; Neutral; 4WD Low
Low Range Ratio 4.0:1
Center Differential Type None
DIMENSIONS AND CAPACITIES
General Overall Length 152.8 (3881.1)
Overall Width (without mirrors) 73.7 (1872.0)
Overall Height, Hard top 70.9 (1800.9)/72.3 (1836.4) Rubicon
Wheelbase 95.4 (2423.2)
Track, Front 61.9 (1572.3)
Track, Rear 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 P245/75R16 P255/75R17 P255/70R18 LT255/75R17
Approach Angle Deg. 40.8 42.0 43.8 44.6 44.3
Breakover Angle Deg. 21.8 23.1 24.9 25.5 25.4
Departure Angle Deg. 37.4 38.7 40.3 40.6 40.4
Front Axle to ground (inches) 9.1 9.6 10.3 10.6 10.5
Rear Axle to ground (inches) 8.8 9.4 10.1 10.3 10.2

Curb Weight

Wrangler X, Man. Trans. 3760 lbs. (1706 kg)
Wrangler X, Auto. Trans. 3785 lbs. (1717 kg)
Wrangler Sahara, Man. Trans. 3951 lbs. (1792 kg)
Wrangler Sahara, Auto. Trans. 3976 lbs. (1804 kg)
Wrangler Rubicon, Man. Trans. 4104 lbs. (1862 kg)
Wrangler Rubicon, Auto Trans. 4129 lbs. (1873 kg)
 

Accommodations

Seating Capacity, F/R 2/2
FRONT
Headroom 41.3 (1049.0)
Leg Room 41.0 (1041.4)
Shoulder Room 55.8 (1417.3)
Hip Room 55.6 (1412.2)
Seat Travel Driver – 9.4 (238.8), passenger – 9.4 (238.8)
Front Volume Index, cubic ft. (cu. m) 54.6 (1.545)
REAR
Headroom 40.3 (1023.6)
Leg Room 35.6 (904.2)
Shoulder Room 61.6 (1564.6)
Hip Room 44.7 (1135.4)
Rear Seat Volume Index, cubic ft. (cu. m) 48.3 (1.367)
Cargo Liftover Height 27.8 (706.1)
Maximum Cargo Width at Swing Gate Opening 58.7 (1491.0)
Minimum Cargo Height at Swing Gate Opening 37.0 (939.8)
Maximum Cargo Height at Swing Gate Opening 37.1 (942.3)
Minimum Cargo Height at Swing Gate Opening 37.0 (939.8)
Distance between wheelhouses 44.7 (1135.4)
Cargo Volume cubic ft. (cu. m)
Rear seat installed 56.5 cu. ft. (1.60)
Rear seat removed 61.2 cu. ft. (1.73)
Behind Rear Seat 17.15 cu. ft. (0.49)

Body & Chassis

Layout Longitudinal front engine, four-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 16.7:1 overall
Turning Diameter (curb-to-curb) 34.9 ft. (10.64 m)
Steering Turns (lock-to-lock) 3.5

Brakes

Availability Std. All
Power Assist Type 10 (254) single-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) 234.3 sq in (1511.6 sq cm)
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) 202.6 sq in (1307.1 sq cm)
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
 Wheels
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)

Sources: Jeep, Edmunds, Motor Trend, Quadratec

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