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Dorman 577-502 Fuel Filler Neck Seal
| Brand | Dorman 577-502 |
|---|---|
| Inside Diameter | 1.9 |
| Material | Rubber |
| Outside Diameter | 3.1 |
| Package Contents | Fuel Tank Filler Neck Grommet |
| Thickness | 0.9 |
| Fits | Lincoln, Ford, Mercury, and Merkur · 102 vehicles |
OE-style replacement. Matches the original seal's fit and function for dependable sealing.
Rubber construction. Built for durability and reliable performance.
Fuel filler neck seal. Helps maintain a secure seal in the fuel delivery system.
Cross-references Spectra Premium FNA03 and F4ZZ9072A for the same application. See all 2.
Fuel Filler Neck Seal for OE-Style Fit
Dorman 577-502 is a rubber fuel filler neck seal made to match the fit and function of the original seal on specified vehicles. It is built for dependable sealing performance at the fuel tank filler neck, helping restore a proper connection between the filler neck and tank opening.
Compatible with a wide range of Ford, Lincoln, and Mercury models, including Mustang, Crown Victoria, Town Car, Grand Marquis, Thunderbird, Cougar, and Continental applications. This Dorman 577-502 fuel filler neck seal is a direct-fit replacement for vehicles that need a precise OE-style grommet at the tank inlet.
Key Features
- Rubber construction for sealing at the fuel tank filler neck
- Inside diameter: 1.9 in.
- Outside diameter: 3.1 in.
- Thickness: 0.9 in.
- Package contents: fuel tank filler neck grommet
- Designed to match original fit and function on listed vehicles
Detailed Description
This fuel filler neck seal is engineered as a replacement for the original seal used on select Ford, Lincoln, and Mercury vehicles from 1981 through 1998. It supports a secure seal where the filler neck enters the fuel tank, helping maintain the intended connection point on applications such as 1982-1988 Ford Thunderbird, 1982-1988 Mercury Cougar, 1982-1997 Ford Mustang, and 1990-1997 Lincoln Town Car. The Dorman 577-502 also cross-references Ford F4ZZ9072A and Spectra Premium FNA03 for the same application.
What It Helps Address
- Fuel odor around the filler neck area
- Visible cracking or deterioration in the original rubber seal
- Loose or poor sealing at the tank filler opening
- Replacement needs after tank or filler neck service
- Age-related hardening of the original grommet material
Installation Notes and Tips
Verify the filler neck seal dimensions against the original part before installation. Clean the filler neck and tank opening thoroughly so the new rubber seal seats evenly. Confirm vehicle-specific fitment for your exact year, make, and model, including 1993-1998 Lincoln Mark VIII, 1992-1997 Ford Crown Victoria, and 1983-1997 Mercury Grand Marquis applications.
Quality Assurance
Dorman designs this seal to match original equipment fit and function and to provide durable, reliable performance in fuel system service.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1998 | Lincoln | Mark VIII | — | — | N/A | — |
| 1997 | Ford | Crown Victoria | — | — | N/A | — |
| 1997 | Ford | Mustang | — | — | N/A | — |
| 1997 | Lincoln | Mark VIII | — | — | N/A | — |
| 1997 | Lincoln | Town Car | — | — | N/A | — |
| 1997 | Mercury | Grand Marquis | — | — | N/A | — |
| 1996 | Ford | Crown Victoria | — | — | N/A | — |
| 1996 | Ford | Mustang | — | — | N/A | — |
| 1996 | Lincoln | Mark VIII | — | — | N/A | — |
| 1996 | Lincoln | Town Car | — | — | N/A | — |
| 1996 | Mercury | Grand Marquis | — | — | N/A | — |
| 1995 | Ford | Crown Victoria | — | — | N/A | — |
| 1995 | Ford | Mustang | — | — | N/A | — |
| 1995 | Lincoln | Mark VIII | — | — | N/A | — |
| 1995 | Lincoln | Town Car | — | — | N/A | — |
| 1995 | Mercury | Grand Marquis | — | — | N/A | — |
| 1994 | Ford | Crown Victoria | — | — | N/A | — |
| 1994 | Ford | Mustang | — | — | N/A | — |
| 1994 | Lincoln | Mark VIII | — | — | N/A | — |
| 1994 | Lincoln | Town Car | — | — | N/A | — |
| 1994 | Mercury | Grand Marquis | — | — | N/A | — |
| 1993 | Ford | Crown Victoria | — | — | N/A | — |
| 1993 | Ford | Mustang | — | — | N/A | — |
| 1993 | Lincoln | Mark VIII | — | — | N/A | — |
| 1993 | Lincoln | Town Car | — | — | N/A | — |
| 1993 | Mercury | Grand Marquis | — | — | N/A | — |
| 1992 | Ford | Crown Victoria | — | — | N/A | — |
| 1992 | Ford | Mustang | — | — | N/A | — |
| 1992 | Lincoln | Mark VII | — | — | N/A | — |
| 1992 | Lincoln | Town Car | — | — | N/A | — |
| 1992 | Mercury | Grand Marquis | — | — | N/A | — |
| 1991 | Ford | LTD Crown Victoria | 5.0L | V8 | N/A | — |
| 1991 | Ford | Mustang | — | — | N/A | — |
| 1991 | Lincoln | Mark VII | — | — | N/A | — |
| 1991 | Lincoln | Town Car | — | — | N/A | — |
| 1991 | Mercury | Colony Park | — | — | N/A | — |
| 1991 | Mercury | Grand Marquis | — | — | N/A | — |
| 1990 | Ford | LTD Crown Victoria | 5.0L | V8 | N/A | — |
| 1990 | Ford | Mustang | — | — | N/A | — |
| 1990 | Lincoln | Mark VII | — | — | N/A | — |
| 1990 | Lincoln | Town Car | — | — | N/A | — |
| 1990 | Mercury | Colony Park | — | — | N/A | — |
| 1990 | Mercury | Grand Marquis | — | — | N/A | — |
| 1989 | Ford | LTD Crown Victoria | 5.0L | V8 | N/A | — |
| 1989 | Ford | Mustang | — | — | N/A | — |
| 1989 | Lincoln | Mark VII | — | — | N/A | — |
| 1989 | Mercury | Colony Park | — | — | N/A | — |
| 1989 | Mercury | Grand Marquis | 5.0L | V8 | N/A | — |
| 1988 | Ford | LTD Crown Victoria | 5.0L | V8 | N/A | — |
| 1988 | Ford | Mustang | — | — | N/A | — |
| 1988 | Ford | Thunderbird | — | — | N/A | — |
| 1988 | Lincoln | Mark VII | — | — | N/A | — |
| 1988 | Mercury | Colony Park | — | — | N/A | — |
| 1988 | Mercury | Cougar | — | — | N/A | — |
| 1988 | Mercury | Grand Marquis | 5.0L | V8 | N/A | — |
| 1987 | Ford | LTD Crown Victoria | 5.0L | V8 | N/A | — |
| 1987 | Ford | Mustang | — | — | N/A | — |
| 1987 | Ford | Thunderbird | — | — | N/A | — |
| 1987 | Lincoln | Mark VII | — | — | N/A | — |
| 1987 | Mercury | Colony Park | — | — | N/A | — |
| 1987 | Mercury | Cougar | — | — | N/A | — |
| 1987 | Mercury | Grand Marquis | 5.0L | V8 | N/A | — |
| 1986 | Ford | LTD | 5.0L | V8 | N/A | — |
| 1986 | Ford | Mustang | — | — | N/A | — |
| 1986 | Ford | Thunderbird | — | — | N/A | — |
| 1986 | Lincoln | Continental | — | — | N/A | — |
| 1986 | Lincoln | Mark VII | — | — | N/A | — |
| 1986 | Mercury | Capri | — | — | N/A | — |
| 1986 | Mercury | Cougar | — | — | N/A | — |
| 1986 | Mercury | Grand Marquis | 5.0L | V8 | N/A | — |
| 1985 | Ford | LTD | 5.0L | V8 | N/A | — |
| 1985 | Ford | Mustang | — | — | N/A | — |
| 1985 | Ford | Thunderbird | — | — | N/A | — |
| 1985 | Lincoln | Continental | — | — | N/A | — |
| 1985 | Lincoln | Mark VII | — | — | N/A | — |
| 1985 | Mercury | Capri | — | — | N/A | — |
| 1985 | Mercury | Cougar | — | — | N/A | — |
| 1985 | Mercury | Grand Marquis | 5.0L | V8 | N/A | — |
| 1984 | Ford | LTD | 5.0L | V8 | N/A | — |
| 1984 | Ford | Mustang | — | — | N/A | — |
| 1984 | Ford | Thunderbird | — | — | N/A | — |
| 1984 | Lincoln | Continental | — | — | N/A | — |
| 1984 | Lincoln | Mark VII | — | — | N/A | — |
| 1984 | Mercury | Capri | — | — | N/A | — |
| 1984 | Mercury | Cougar | — | — | N/A | — |
| 1984 | Mercury | Grand Marquis | 5.0L | V8 | N/A | — |
| 1983 | Ford | Fairmont | — | — | N/A | — |
| 1983 | Ford | LTD | 5.0L | V8 | N/A | — |
| 1983 | Ford | Mustang | — | — | N/A | — |
| 1983 | Ford | Thunderbird | — | — | N/A | — |
| 1983 | Lincoln | Continental | — | — | N/A | — |
| 1983 | Mercury | Capri | — | — | N/A | — |
| 1983 | Mercury | Cougar | — | — | N/A | — |
| 1983 | Mercury | Grand Marquis | 5.0L | V8 | N/A | — |
| 1983 | Mercury | Zephyr | — | — | N/A | — |
| 1982 | Ford | Mustang | — | — | N/A | — |
| 1982 | Ford | Thunderbird | — | — | N/A | — |
| 1982 | Lincoln | Continental | — | — | N/A | — |
| 1982 | Mercury | Capri | — | — | N/A | — |
| 1982 | Mercury | Cougar | — | — | N/A | — |
| 1981 | Ford | Mustang | — | — | N/A | From 4/81 |
| 1981 | Mercury | Capri | — | — | N/A | From 4/81 |
| No rows match your filter. | ||||||