Jeep Wrangler 2007-Present JK Specifications

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

Availability

Std.

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)