Overview
The Crown Automotive 53003204 is a fuel sending unit for the 4.2L 6-cylinder engine. It fits the 1987–1990 Jeep Wrangler (YJ). The sending unit sits in the tank and sends fuel level to the gauge, so the correct unit matters for an accurate reading.
It is a direct fit for the 1987 to 1990 Wrangler YJ, in the trims below.
Key features
- Fuel sending unit for the 4.2L 6-cylinder engine
- Fits 1987–1990 Jeep Wrangler (YJ) in Base, Islander, Laredo, S, Sahara and Sport trims
- Direct fit classification from Crown Automotive
- Crown Automotive part number 53003204 with UPC 848399017182
Tank and gauge basics
A fuel sending unit combines a float, a resistance track and the mounting plate that seals the tank. As the float rises and falls with fuel, the gauge reading changes. Because the reading depends on the float’s travel, a sender that sticks or has a bent arm will give false readings even when the tank is full.
Before fitting a new unit, check the tank for debris and make sure the mounting surface is clean. Replace the sealing ring and handle the float arm carefully so it does not bend. If a pump or filter is needed for your installation, plan to source those parts separately, since they are not included. After installation, check for leaks and confirm the gauge moves smoothly from empty to full.
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | 53003204 |
| UPC | 848399017182 |
| Type | Fuel sending unit |
| Engine | 4.2L 6-cylinder |
Vehicle fitment
It fits the 1987–1990 Jeep Wrangler (YJ) in Base, Islander, Laredo, S, Sahara and Sport trims.
The 1991–1995 Wrangler YJ and later Wrangler generations are not covered by this fitment. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Check that the engine is the 4.2L 6-cylinder before ordering and fitting this unit.
What’s included
One fuel sending unit.
Not included: A pump, filter or o-ring is not included with the sending unit.









