Overview
The Crown Automotive Fuel Filler Neck Seal, part number J0663502, is a filler tube grommet that seals the fuel filler neck. It is a direct fit replacement.
Crown Automotive is a manufacturer and distributor of replacement parts for Jeep vehicles, with over 50 years in the business and over 8,000 part numbers, including many factory-discontinued items.
Crown Automotive gives no material, size or other specifications for this seal.
Key features
- Fuel filler neck seal
- Filler tube grommet
- Direct fit replacement
- Made by Crown Automotive, a Jeep replacement parts maker
Before you replace the seal
A filler neck seal keeps fuel vapor, road water and debris away from the fuel system where the filler tube meets the body. When it hardens, cracks or pulls loose, the gap can let moisture in and let fuel odor escape near the filler door. Those are the usual signs that the seal needs attention.
Inspect the seal and the area around the filler neck before buying a replacement. Look for splits, flattened sections, stiffness, or a seal that no longer sits flush. Check the filler door hinge and the cap gasket as well, because a worn cap can cause similar symptoms and is often replaced at the same time.
- Look for fuel odor near the filler door
- Check for cracks or hardened rubber
- Inspect the cap gasket during the same job
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | J0663502 |
| UPC | 848399053166 |
| Product type | Fuel filler neck seal (filler tube grommet) |
| Fit type | Direct fit |
Vehicle fitment
It is a direct fit replacement seal. Confirm fit for your vehicle’s year, model and trim before ordering.
Confirm fit for your vehicle’s year, model and trim before ordering, and compare the seal with your filler neck before installing it.
Installation notes
Work on a cool engine with the battery disconnected. Handle fuel system parts with care, tighten fasteners to the torque values for the job, and consider professional installation if you are unsure.
- Replace gaskets and seals as the manufacturer directs, and keep ignition sources away from fuel system components.
- Check for leaks and loose connections after the first start and again after the first miles of driving.
- Follow local emissions regulations for any engine or exhaust related part.



