The Jeep build
2004 Wrangler TJ
Parts, maintenance, and learning to wrench on the Sahara.
Baseline first.
Maintenance before modifications.
- Engine
- 4.0L inline-six
- Transmission
- 5-speed manual
- Front axle
- Dana 30
- Rear axle
- Dana 44 / Trac-Lok
- Gearing / 4WD
- 3.73 / Command-Trac
Parts & supplies
Watch intro ↗What I’m using on this Jeep. Confirm fitment for yours. Amazon links are affiliate links.
Showing all 13 parts and supplies.
| Part | Quantity & fitment | Find it |
|---|---|---|
Hardtop and Jeep accessories Hooke Road TJ hardtop bolt and nut replacement kit, set of 6Fitment notesHardtop hardware refresh for the 1997–2006 TJ hardtop. | One six-piece hardware kit | Find part ↗Amazon affiliate search |
Hardtop and Jeep accessories FOUR WHEEL BEAST Jeep genuine-leather keychainFitment notesAccessory purchase; not a maintenance requirement. | Optional accessory | Find part ↗Amazon affiliate search |
Baseline fluids and filters AMSOIL 10W-30 100% Synthetic High-Mileage Motor Oil, gallon jugFitment notesEngine-oil baseline. Combined with two quarts for the 4.0L six-quart oil-and-filter change. | 6 qt total for oil-and-filter change | Find part ↗Amazon affiliate search |
Baseline fluids and filters AMSOIL 10W-30 100% Synthetic High-Mileage Motor Oil, quart bottlesFitment notesCompletes the six-quart engine-oil quantity for the 4.0L. | Part of the 6 qt engine-oil total | Find part ↗Amazon affiliate search |
Baseline fluids and filters WIX 51085 oil filterFitment notesOil-filter baseline for the 4.0L. | One oil filter | Find part ↗Amazon affiliate search |
Baseline fluids and filters WIX 46081 air filterFitment notesStock-style paper air-filter baseline. | One air filter | Find part ↗Amazon affiliate search |
Baseline fluids and filters AMSOIL SEVERE GEAR 80W-90 100% Synthetic Gear Lube, quart Easy-PackFitment notesDifferential-fluid baseline: Dana 30 front and Dana 44 rear. | About 5 qt on hand for both differentials | Find part ↗Amazon affiliate search |
Baseline fluids and filters AMSOIL Slip Lock differential additive, 4 ozFitment notesOn hand for the rear Dana 44 Trac-Lok limited-slip differential if chatter needs correction. | One 4 oz tube if the Trac-Lok needs it | Find part ↗Amazon affiliate search |
Baseline fluids and filters AMSOIL gasoline stabilizer, 16 ozFitment notesSupport item for a seasonal/project vehicle. | One bottle for seasonal storage | Find part ↗Amazon affiliate search |
Baseline fluids and filters 93 mm filter wrenchFitment notesSupport tool for the oil-change baseline. | 93 mm cap-style wrench | Find part ↗Amazon affiliate search |
Tune-up parts Champion 438 / RC12ECC copper spark plugs, six-packFitment notesTune-up item for the 4.0L coil-rail setup. Confirm gap before install. | Six plugs for the 4.0L inline-six | Find part ↗Amazon affiliate link |
Differential service LubeLocker Dana 30 differential cover gasketFitment notesCleaner gasket option for front Dana 30 differential service. | One Dana 30 cover gasket | Find part ↗Amazon affiliate search |
Differential service LubeLocker Dana 44 differential cover gasketFitment notesCleaner gasket option for rear Dana 44 differential service. | One Dana 44 cover gasket | Find part ↗Amazon affiliate search |
Before you order
This list follows my specific 2004 TJ Sahara. Confirm fitment, capacities, torque specs, and service procedures for your own Jeep.
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