BUICK 25619420 Ave Ultra Fuel Filler Neck Gas Cap

( Manufacturer Part Number: 25619420 ), ( Part Type: Fuel Filler Cap ), ( Id: 4e2adb5e-4c03-4843-ae71-d8d605e39b14 ), ( Interchange: 179-cpi ), ( Year: 1992 )

Review BUICK Ave Ultra Fuel Filler Neck Assembly Gas Cap Oem fits PARK 1991–1996

The **Buick 25619420 1991 1996 Park Avenue Ultra Fuel Filler Neck and Gas Cap** is a meticulously engineered component designed to seamlessly integrate with the refined luxury of the iconic Buick Park Avenue Ultra, a model celebrated for its opulent interiors, smooth performance, and timeless elegance. This fuel filler neck and cap assembly is crafted with precision to ensure a secure, leak-proof connection between the vehicle s fuel system and the exterior filler opening, maintaining both functionality and aesthetic harmony. The filler neck is constructed from high-quality, durable materials, including a sturdy plastic housing reinforced with metal reinforcements to withstand the rigors of daily use, from rough road conditions to the occasional bump or curb strike. The design features a sleek, contoured shape that not only enhances the vehicle s streamlined appearance but also minimizes the risk of snagging or damage during parking or low-clearance maneuvers.

The gas cap itself is a blend of practicality and sophistication, equipped with a secure locking mechanism that prevents accidental opening while driving, ensuring safety and reducing the likelihood of fuel spills. The cap is designed to fit snugly over the filler neck, creating an airtight seal that preserves fuel integrity and prevents vapor emissions, which is particularly important for maintaining the vehicle s performance and adhering to emissions regulations. The exterior of the cap often features Buick s signature styling cues, such as the brand s emblem or distinctive chrome accents, depending on the model year and trim level, adding a touch of luxury that complements the Park Avenue Ultra s upscale aesthetic. Inside, the cap may include a built-in fuel gauge indicator or a venting system to regulate pressure within the fuel tank, contributing to the overall efficiency of the vehicle s fuel delivery system.

For restoration enthusiasts or owners seeking to maintain the original integrity of their 1991 1996 Park Avenue Ultra, this fuel filler neck and cap serve as an essential replacement part, ensuring compatibility with the vehicle s fuel system without compromising on quality. Whether replacing a worn-out or damaged original component or upgrading to a new part for a showroom-quality finish, this assembly is a testament to Buick s attention to detail and engineering excellence. Its compatibility with the Ultra s fuel tank design guarantees a perfect fit, allowing for easy installation and immediate confidence in the vehicle s reliability. By choosing this high-quality replacement, owners can rest assured that their Park Avenue Ultra will continue to deliver the refined performance and luxurious driving experience that Buick has long been synonymous with.

### **Pros and Cons of Buying a 1991-1996 Buick Park Avenue Ultra Fuel Filler Neck/Gas Cap (Part #25619420)**

1. **Authenticity and Fit** The OEM (Original Equipment Manufacturer) part ensures an exact fit, maintaining the vehicle s original appearance and functionality without gaps or misalignment. Aftermarket replacements may not match perfectly, leading to leaks or improper sealing.

2. **Reliability** Buick s parts from this era were designed to last, and the fuel filler neck and cap are no exception. A genuine part reduces the risk of premature failure due to poor materials or substandard manufacturing.

3. **Ease of Installation** Since it is the correct part for your model, installation is typically straightforward, requiring minimal modification. Aftermarket alternatives may require additional tools or adjustments.

4. **Resale Value Preservation** If you plan to keep the vehicle long-term or sell it later, using OEM parts helps maintain its original condition, which can be appealing to buyers who prefer restored or unmodified classic cars.

5. **Compatibility with Original Systems** The filler neck and cap are designed to work seamlessly with the vehicle s fuel system, including the fuel pump, sending unit, and fuel lines. Aftermarket parts might not integrate as smoothly, potentially causing issues like fuel leaks or improper level readings.

6. **Avoiding Common Aftermarket Issues** Some aftermarket filler necks or caps may have thin plastic that cracks over time, or incorrect sealing mechanisms that fail. The OEM part is built to withstand the stresses of daily use without such problems.

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1. **Cost** Original Buick parts, especially for older models, can be significantly more expensive than aftermarket alternatives. Prices may range from $50 to $150 or more, depending on availability and condition.

2. **Availability and Lead Times** Finding a genuine OEM part may require searching through junkyards, online marketplaces, or specialized auto parts dealers. In some cases, the part may be discontinued, leading to longer wait times or higher prices.

3. **Potential for Wear or Damage** If the part you purchase has been salvaged from a wrecked vehicle, it may have hidden damage (e.g., bent metal, cracked plastic, or corroded threads). Inspecting the part closely or requesting a replacement if necessary adds to the hassle.

4. **No Modern Improvements** Unlike aftermarket parts, the OEM filler neck and cap do not include modern enhancements such as reinforced seals, easier-to-open caps, or corrosion-resistant coatings. If you prioritize convenience or durability beyond the original design, aftermarket options might offer slight advantages.

5. **Environmental and Ethical Concerns** Purchasing a part from a salvage yard may involve ethical dilemmas if the vehicle it came from was salvaged from an accident or environmental disaster. Some buyers prefer to support recycling efforts or choose parts from reputable sources.

6. **Installation Challenges** If the original part was removed due to damage (e.g., a bent neck or broken cap), the surrounding area (e.g., the fuel tank opening or body panel) may need cleaning or repair. This adds labor time and cost beyond just replacing the part.

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### **Conclusion**

The **1991-1996 Buick Park Avenue Ultra fuel filler neck and gas cap (part #25619420)** is a practical choice if you prioritize **authenticity, reliability, and long-term compatibility** with your vehicle. The OEM part ensures a perfect fit, avoids potential issues with aftermarket alternatives, and helps preserve the car s original condition. However, the **higher cost, potential availability issues, and lack of modern upgrades** make it less ideal for buyers on a tight budget or those seeking convenience.

If you are restoring or maintaining a classic Buick and want to stay true to the original specifications, the OEM part is the best option. If cost or convenience is a priority, a **high-quality aftermarket replacement** (from a reputable brand like **Spectre, ACDelco, or Mann Filter**) may be a viable alternative, provided it meets your fit and performance standards.

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### **Recommendation**

- You are restoring the vehicle to factory specifications.

- You want to avoid potential fitment or functionality issues.

- You are willing to pay the premium for authenticity and reliability.

- You are on a budget and can find a well-reviewed aftermarket part that matches the OEM specifications.

- You prioritize ease of installation or modern improvements (e.g., reinforced seals).

- You cannot locate the OEM part quickly or affordably.

**Final Tip:** If purchasing from a salvage yard, inspect the part thoroughly for damage, and consider requesting a replacement if it appears worn. For the best results, pair the part with a professional installation if you are unsure about the process.

Details:

Fuel Filler Neck. Search for more parts BUICK PARK AVE. This part will fit the following: BUICK LESABRE 80 UP 92-95 Upper; Custom Limited. BUICK PARK AVENUE 80 UP 91-96 Upper; Ultra base model.

part #: 25619420 prices

• $142.50-$150.00

specifications fueltanksysteme:

• for models: Park
• for makes: Buick
• for years: 1991-1996
• mpn: 25619420
• part type: Fuel Filler Cap
• id: 4e2adb5e-4c03-4843-ae71-d8d605e39b14
• interchange: 179-cpi
• year: 1992

shipping fueltanksysteme:

• cost: $0.00
• type: Fixed
• service: Standard
• transit: 3-6 Days
• class: Standard

general fueltanksysteme:

• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks
• condition: Used

returns fueltanksysteme:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

offer fueltanksysteme:

• sold: 0
• availability: In Stock
• quantity: 1
• started: May 10, 2026
• options: Ship-to-home

seller fueltanksysteme:

• rating: 99.6%
• # reviews: 16421
• city: Brush, Colorado

payments fueltanksysteme:

• credit card: Visa
• wallet: Paypal
• other

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