Jeep Wrangler 1997-2006

In its TJ generation, produced from 1997 to 2006, the Jeep Wrangler continued the iconic off-road legend that retained its rugged and timeless design. The TJ was purpose-built for off-roading, featuring a traditional body-on-frame construction and solid front and rear axles. It maintained its classic round headlights and seven-slot grille while improving on-road comfort and interior quality compared to its predecessor. The TJ was available in various body styles, including a two-door convertible with a removable soft or hardtop and a more extended wheelbase Unlimited variant, offering additional rear-seat space and cargo capacity.

Underneath, the TJ utilized coil spring suspension for better ride quality than older models' leaf spring setups. This allowed for improved articulation and off-road capability while still delivering a comfortable on-road ride. Four-wheel-drive systems like Command-Trac and Rock-Trac and manual and automatic transmissions catered to different driving preferences. While the Wrangler TJ remained true to its off-road roots, it also introduced modern features like air conditioning and stereo systems, making it more suitable for daily driving. Its legendary reputation for conquering challenging terrain made it a beloved choice among off-road enthusiasts and adventurers.

Jeep Wrangler specification, engine oil capacity, spark plug gap, safety rating, fuel consumption, transmission, and light bulb sizes.

Chassis

• Type: TJ

Engine 2.4L 4-Cylinder DOHC

• Recommended oil viscosity: 5W-30
• Oil certification: API
• Drain Plug Torque: 20FT-LBS
• Oil capacity: 5.0 quarts

Spark Plug Gap

• 2.4L 4-Cylinder: 0.044”

Engine 4.0L 6-Cylinder

• Recommended oil viscosity: 0W-20
• Oil certification: API
• Oil capacity: 5.5 quarts

Spark Plug Gap

• 4.0L 6-Cylinder: 0.047”

Fuel

• Capacity: 1.3L Turbo / 2.4L Engine: 12.7 Gallons (48 Liters)

Cooling System

• Type: We recommend you use Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT (Organic Additive Technology) or equivalent meeting the requirements of FCA Material Standard MS.90032
• Capacity:
  • 1.3L Turbo Engine: 8.8 Quarts (8.3 Liters)
  • 2.4L Engine: 6.8 Quarts (6.5 Quarts)

Manual Transmission — If Equipped

• Type: We recommend you use Mopar ATF+4 Automatic Transmission Fluid

Automatic Transmission (CVT) — If Equipped

• Type: Use only Mopar ZF 8&9 Speed ATF Automatic Transmission Fluid or equivalent. Failure to use the correct fluid may affect the function or performance of your transmission

Power Transfer Unit (PTU)

• Type: We recommend you use Mopar Gear & Axle Lubricant SAE 80W-90 API GL 5

Rear Differential (RDM) – If Equipped

• Type: We recommended you use Mopar Rear Axle/RDM Synthetic Axle Lubricant SAE 75W-90 (API GL5)

Brake Master Cylinder

• Type: We recommend you use Mopar DOT 4. If DOT 4 brake fluid is unavailable, then DOT 3 is acceptable. DOT 4 brake fluid must be changed every two years regardless of mileage

Powertrain

Engine

• Engine    2.4 L PowerTech I4
• 2.5 L PowerTech I4
• 4.0 L PowerTech I6

Transmission

• 4-speed Ultradrive 42RLE automatic
• 5-speed Mercedes-Benz W5A580 automatic
• 5-speed Chrysler 545RFE automatic
• 6-speed Chrysler NSG370 manual

Fuel Consumption

Front Lights

• Front Fog Light Bulb: 2504
• Front Sidemarker Light Bulb: 3757AK
• Front Turn Signal Light Bulb: 3757AK
• High Beam and Low Beam Headlight Bulb: H13

Rear Lights

• Back Up Light Bulb: 921
• Brake Light Bulb: 3157K
• Center High Mount Stop Light Bulb: LED
• License Plate Light Bulb: 2825
• Parking Light Bulb: 3757AK
• Rear Sidemarker Light Bulb: 3157K
• Rear Turn Signal Light Bulb: 3157K
• Tail Light Bulb: 3157K

Interior Lights

• Dome Light Bulb: 578
• Luggage Compartment Light Bulb: 578
• Map Light Bulb: 578