Overview
The Crown Automotive L0003057 is a 3057 bulb for the rear turn signal, rear parking lamp and brake light. The manufacturer fitment covers the 2006–2010 Jeep Commander (XK) and the 1996–1998 Jeep Grand Cherokee (ZJ).
The 3057 is the bulb designation in the title. The bulb serves three rear functions together, so it is a rear-lamp bulb rather than a front light or side marker.
Key features
- Rear turn signal function
- Rear parking lamp function
- Brake light function
- Fitment shown for the 2006–2010 Commander and 1996–1998 Grand Cherokee ZJ
Rear lamp bulbs and wiring
Rear lamps combine turn, parking and brake functions, and a bulb that serves all three is often a dual-filament design. When one filament fails, the other function may still work, so a single failure can be easy to miss. Test brake, turn and parking functions after every fitting, with a helper watching the lamp from behind.
Socket contacts in the rear lamp housing see heat, road salt and moisture. Clean any green or white corrosion from the contacts before fitting a new bulb, and check that the wiring connector clicks fully into the socket. A loose connection can cause flicker, a dim brake lamp or a bulb that burns out quickly even when the bulb itself is good.
- Test each function after installation
- Inspect the socket contacts for corrosion
- Check the lens gasket for water entry
- Replace worn sockets when bulbs keep failing
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | L0003057 |
| UPC | 848399073805 |
| Bulb number | 3057 |
| Functions | Rear turn signal, rear parking lamp, brake light |
| Fitment | Direct fit |
Vehicle fitment
- Commander (XK), 2006–2010 (65th Anniversary Edition, Base, Limited, Overland and Sport trims)
- Grand Cherokee (ZJ), 1996–1998 (5.9 Limited, Laredo, Limited and TSi trims)
Grand Cherokee WJ and WK models and Wrangler models are not on this list. Confirm your vehicle’s year, model and trim before ordering.
What’s included
The product describes one bulb, and no quantity is given.
