Overview
The Crown Automotive 5093788AA is a replacement fuel tank module assembly for 2.4L and 4.0L engines. It fits 2003–2004 Jeep Wrangler TJ and 2004 Jeep Wrangler LJ Unlimited models. Crown Automotive distributes replacement parts for Jeep vehicles and offers over 8,000 part numbers, including many factory-discontinued items.
A fuel tank module assembly is the unit that sits inside the fuel tank, so match the part number and engine before ordering.
Key features
- Fuel tank module assembly, part number 5093788AA
- Fits 2.4L and 4.0L engines.
- Listed by the manufacturer as direct fit
- Fitment list includes 2003–2004 Wrangler TJ and 2004 Wrangler LJ Unlimited
Signs the module needs replacing
The fuel tank module carries the fuel pump, the level sending unit and the fuel strainer, so a fault in any of these can affect how the engine runs. Common signs of wear include a fuel gauge that jumps or stays at one reading, hard starting after the vehicle sits, sputtering under load, and a whining pump that gets louder over time. On TJ and LJ Wrangler models, these symptoms often appear as the tank runs low, because the pump has to draw fuel from the bottom of the tank.
When the module comes out, look at the tank seal and the strainer. A hardened seal can leak fuel vapor, and a clogged strainer can starve the pump even when the pump is healthy. Many shops replace the seal at the same time as the module, and they check the wiring connector for corrosion before installing the new unit.
- Test fuel pressure with a gauge before condemning the pump
- Replace the tank seal when the module is removed
- Inspect the connector for corrosion and loose pins
- Clean out sediment from the tank bottom
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | 5093788AA |
| UPC | 848399035360 |
| Type | Fuel tank module assembly |
| Engine application | 2.4L and 4.0L engine |
| Fit type | Direct fit |
Vehicle fitment
The manufacturer fitment list includes the 2004 Jeep Wrangler (LJ) Unlimited and the 2003–2004 Jeep Wrangler (TJ) in Rubicon, SE, Sahara, Sport and X trims.
Wrangler JK and YJ models are not covered by this list. Confirm your vehicle’s year, model and trim before ordering.
What’s included
Check the package contents against the module you are replacing before starting the installation.
