We researched and compared the best gas filler neck and cap assemblies on the market. Our evaluation is based on manufacturer specifications, industry safety standards, and aggregated owner feedback. Whether you need a direct OE replacement or an upgrade for an older vehicle, this guide will help you choose the right part.
| Photo | Product | Score | Buy |
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Dorman 603-013 Fuel Tank Filler Neck Best Overall Steel construction, includes cap, for select Ford/Lincoln models |
9.1 | 🛒 Check Price |
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Spectra Premium FN205 Fuel Filler Neck Runner Up Steel with E-coating, for select GM vehicles |
8.7 | 🛒 Check Price |
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ACDelco 19330360 Fuel Filler Neck Best OEM Quality OEM replacement for select GM cars and trucks |
8.4 | 🛒 Check Price |
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Gates 41768 Fuel Filler Neck Best for Heavy Duty Heavy-duty steel, for select Ford trucks |
8.1 | 🛒 Check Price |
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Omix-Ada 17303.02 Fuel Filler Neck Best for Jeep Wrangler For Jeep Wrangler YJ/TJ, steel construction |
7.8 | 🛒 Check Price |
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Dorman 603-111 Fuel Filler Neck Best for Honda/Acura For select Honda and Acura models, steel |
7.3 | 🛒 Check Price |
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Crown Automotive 53010429 Fuel Filler Neck Best Budget Pick For Jeep Cherokee XJ, steel with basic coating |
7.0 | 🛒 Check Price |
1. Dorman 603-013 Fuel Tank Filler Neck: Best Overall
In our evaluation, the Dorman 603-013 stands out for its exceptional fit and finish. It comes as a complete assembly with the cap and vent hoses, making installation straightforward for DIYers. Owner feedback highlights its corrosion resistance and reliable sealing. However, it is designed for specific Ford and Lincoln models, so you must check compatibility. If your vehicle is not listed, this is not the right choice.
Some users noted that the included cap is not locking, which may be a concern for security. For those needing a locking cap, consider an aftermarket cap separately. Overall, this is a solid pick for direct OE replacement.
- Direct fit for many Ford and Lincoln vehicles; no modifications needed.
- Pre-assembled with cap and hoses for quick installation.
- Corrosion-resistant steel with anti-rust coating.
Pros: Easy bolt-on replacement with included hardware.; Sturdy build matches OEM quality.
Cons: Not universal; verify compatibility before purchase.
2. Spectra Premium FN205 Fuel Filler Neck: Runner Up
The Spectra Premium FN205 is a strong contender, especially for GM owners. We compared its E-coating against other brands and found it offers excellent rust prevention. Owner feedback confirms a reliable fit for most applications. However, a few users reported that the cap sometimes fails to seal tightly, leading to minor fuel odor. If you are sensitive to fumes, you may want to use an OEM cap.
For those with older GM trucks or SUVs, this is a cost-effective replacement. But if you need a locking cap or a perfect seal every time, you might look elsewhere. It is a solid choice for budget-conscious buyers.
- E-coated for superior rust protection.
- Includes cap and vent tube assembly.
- Precision bending for accurate fit.
Pros: Excellent corrosion resistance.; Good value for a complete assembly.
Cons: Cap may not seal perfectly on some units.
3. ACDelco 19330360 Fuel Filler Neck: Best OEM Quality
If you want an exact OEM replacement, the ACDelco 19330360 is the top choice. We researched its materials and found it meets GM’s stringent standards. Owner feedback praises its flawless fit and long-lasting seal. However, it comes at a higher cost, and it is only compatible with specific GM models. For those on a tight budget, aftermarket alternatives offer similar performance for less.
We recommend this for owners who prioritize original equipment quality and are willing to pay a premium. If your vehicle is not listed, skip this pick.
- Genuine GM quality, built to OE specs.
- Includes cap and all necessary hardware.
- Rigorous testing for fit and function.
Pros: Perfect fit guaranteed for compatible models.; High durability and long service life.
Cons: Premium price compared to aftermarket options.
4. Gates 41768 Fuel Filler Neck: Best for Heavy Duty
The Gates 41768 is built for heavy-duty applications. In our evaluation, its thick steel and robust coating make it ideal for trucks that see harsh environments. Owner feedback from fleet operators confirms its longevity. However, some users noted that the included cap does not always accept oversized fuel nozzles at truck stops. If you frequently refuel at commercial pumps, this could be an issue.
This is a great pick for work trucks or off-road vehicles that need a tough filler neck. For daily drivers, the cap limitation might be annoying. Consider aftermarket caps if needed.
- Thick steel construction for rugged use.
- Includes cap and vent tube.
- Designed for high-mileage vehicles.
Pros: Extremely durable; withstands rough conditions.; Good for older trucks with rust-prone necks.
Cons: Cap may not be compatible with all fuel nozzles.
5. Omix-Ada 17303.02 Fuel Filler Neck: Best for Jeep Wrangler
Jeep owners looking for a direct replacement will find the Omix-Ada 17303.02 a practical option. We compared its specs to OEM and found it matches in dimensions. Owner feedback highlights its ease of installation. However, the zinc plating is not as corrosion-resistant as E-coating, so it may rust faster in salty environments. If you live in the rust belt, you might want to apply additional protection.
This is a budget-friendly choice for off-road enthusiasts who don’t mind a bit of maintenance. For daily drivers in humid areas, consider a more corrosion-resistant alternative.
- Direct fit for Jeep Wrangler YJ and TJ models.
- Includes cap and vent hose.
- Zinc-plated for some corrosion resistance.
Pros: Affordable replacement for older Jeeps.; Easy installation with basic tools.
Cons: Zinc plating is less durable than modern coatings.
6. Dorman 603-111 Fuel Filler Neck: Best for Honda/Acura
The Dorman 603-111 is a budget-friendly filler neck for Honda and Acura owners. We researched its compatibility and found it fits many popular models. Owner feedback indicates it works well initially, but some report rust after a few years due to the painted finish. If you keep your car long-term, consider upgrading to a better-coated part.
This is suitable for those needing a quick fix or on a tight budget. For long-term reliability, we recommend investing in a higher-quality option. Not ideal for rust-prone areas.
- Designed for specific Honda and Acura vehicles.
- Includes cap and mounting hardware.
- Painted finish for basic protection.
Pros: Affordable option for Japanese imports.; Simple installation.
Cons: Painted finish may chip and rust over time.
7. Crown Automotive 53010429 Fuel Filler Neck: Best Budget Pick
The Crown Automotive 53010429 is the most budget-friendly option in our lineup. We evaluated its construction and found it lacks the robust coatings of competitors. Owner feedback often mentions rust within a year, especially in wet climates. If you need a quick, cheap replacement and don’t mind replacing it again soon, this works. However, for most buyers, spending a little more on a better-coated neck is wiser.
We recommend this only for short-term use or if you live in a dry climate. For long-term ownership, skip this pick and choose a more durable alternative.
- Low-cost replacement for Jeep Cherokee XJ.
- Includes cap and vent tube.
- Steel construction with minimal rust protection.
Pros: Very affordable price point.; Fits as intended for XJ models.
Cons: Poor corrosion resistance; may rust quickly.
Frequently Asked Questions
How do I know if my gas filler neck needs replacement?
Signs include visible rust or corrosion around the filler neck, fuel odors inside or outside the car, difficulty inserting the fuel nozzle, or a check engine light related to evaporative emissions. If you notice any of these, inspect the neck for leaks or damage.
Can I replace just the gas cap instead of the whole filler neck?
Yes, if the neck itself is in good condition and only the cap is faulty, replacing just the cap is sufficient. However, if the neck is rusted or damaged, replacing the entire assembly is recommended to ensure a proper seal and safety.
Are universal gas filler necks a good option?
Universal necks often require cutting or welding to fit, which can lead to improper sealing and safety hazards. We recommend using a vehicle-specific direct-fit assembly to ensure correct fitment and compliance with safety standards.
How important is corrosion resistance in a filler neck?
Very important, especially if you live in areas with road salt or high humidity. Corrosion can cause leaks and fuel vapor escape, which is both a safety risk and an emissions issue. Look for E-coated or stainless steel options for best longevity.
Can a faulty filler neck cause a check engine light?
Yes, a leaking filler neck can trigger evaporative emission system codes, such as P0455 or P0456. Replacing the neck and cap often resolves these codes if the leak is the root cause.
Our Verdict
After researching and comparing, our top pick is the Dorman 603-013 for its overall quality, fit, and value. For those who prefer OEM quality, the ACDelco 19330360 is a close runner-up. Choose based on your vehicle compatibility and budget.
Last reviewed and spec-checked: June 24, 2026. We re-check our picks and listings periodically.
