NV241OR 'Rock-Trac' (Rubicon) or NV140 (Sport/Sahara)
Fluid Specifications
Manual Transmission Fluid Spec:
Mopar Manual Transmission Lubricant (MTX) or equivalent spec like API GL-3/GL-4
Automatic Transmission Fluid Spec:
ATF+4 (MS-9602)
📐 Dimensions
Exterior
Wheelbase 2 Door:
95.4 inches (2423 mm)
Wheelbase 4 Door Unlimited:
116 inches (2947 mm)
Overall Length 2 Door:
162.1 inches (4117 mm)
Overall Length 4 Door Unlimited:
183.4 inches (4658 mm)
Weights
Curb Weight 2 Door:
Approx. 3,800 - 4,100 lbs (1724 - 1860 kg)
Curb Weight 4 Door Unlimited:
Approx. 4,300 - 4,600 lbs (1950 - 2087 kg)
🛡️ Safety Features
Ratings
NHTSA Rollover Rating 2 Door:
4 out of 5 stars (2007-2009 models)
IIHS Crash Test Results:
Varied by year and test, generally 'Good' in frontal offset, but side impact results could be less favorable without optional side airbags.
Active Features
ABS:
Standard Anti-lock Braking System (ABS)
Traction Control:
Standard Electronic Roll Mitigation (ERM) and Electronic Stability Control (ESC)
Passive Features
Airbags:
Standard front airbags, optional side curtain airbags on some trims.
Rollover Protection:
Integrated roll bar and reinforced windshield frame.
💡 Technology Features
Infotainment
Base Audio System:
AM/FM CD/MP3 player with 4 speakers.
Optional Upgrades:
SiriusXM Satellite Radio, Infinity speaker system, Navigation system (rare for these years).
Driver Assistance
Driver Assistance Features:
Limited; primarily focused on ESC, ABS, and optional traction control. No advanced driver-assistance systems (ADAS) like adaptive cruise control or lane keeping assist.
Connectivity
Connectivity Features:
Auxiliary audio input jack (on some models).
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 6,000 miles or 6 months, whichever comes first (under normal driving conditions).
Air Filter Replacement:
Every 15,000 miles or 12 months (severe duty may require more frequent replacement).
Spark Plug Replacement 3 8L:
Approximately every 100,000 miles (refer to manual for specific plug type and gap).
Fluid Specifications
Engine Oil Capacity 3 8L:
5.0 US quarts (4.7 liters) with filter change (refer to manual for exact capacity).
Engine Oil Viscosity:
SAE 3.73 (preferred) or SAE 10W-30 (check manual for climate-specific recommendations)
Coolant Capacity:
Approx. 11.0 US quarts (10.4 liters) for 3.8L V6 (check manual for exact capacity and type).
Known Issues
Common Issue 1:
Oil leaks from valve covers or oil pan gaskets.
Common Issue 2:
Worn clutch components (manual transmission).
Common Issue 3:
Water pump leaks.
Common Issue 4:
Seat belt anchor wear/stretching (especially on soft top models).
Common Issue 5:
Transmission output shaft seal leaks.
📚 Vehicle History
Brand Heritage
Jeep Legacy:
Established in 1941 with the Willys MB military jeep, renowned for off-road capability.
Model Evolution
Tj To Jk Transition:
The JK generation replaced the TJ Wrangler, introducing significant design and engineering changes for improved on-road manners and passenger comfort while retaining off-road prowess.
Production
Production Plant:
Toledo North Assembly, Toledo, Ohio, USA
Jk Generation Start Year:
2007
🏆 Awards & Recognition
Recognitions
Off Road Awards:
Consistently recognized for its off-road capabilities and 'Trail Rated' status.
Ratings
Reliability Ratings:
Ratings can vary by source (e.g., Consumer Reports); generally considered average to good, with a focus on durability of core components rather than advanced electronics.
Certifications
Trail Rated Badge:
Jeep's internal certification for off-road performance across five categories: traction, ground clearance, maneuverability, articulation, and water fording.