POLARIS 5430840 Fuel Gas Tank AP207

( Manufacturer Part Number: 5430840 ), ( Type: Gas Tank )

Review POLARIS Oem Fuel Gas Tank fits TRAIL BOSS 250R 1986–1987

The **Polaris 5430840 AP207 Fuel Tank** is a meticulously engineered, high-performance component designed specifically for the **1986-1987 Trail Boss 250R** ATV, ensuring optimal fuel efficiency, durability, and reliability for off-road adventures. Crafted from **high-grade, corrosion-resistant materials**, this fuel tank is built to withstand the harshest conditions, from rugged trails to dusty backroads, while maintaining structural integrity over extended use. The tank features a **smooth, aerodynamic design** that minimizes air resistance, allowing for a cleaner fuel flow and reducing the risk of vapor lock critical for maintaining consistent engine performance under demanding conditions. Its **robust construction** includes reinforced seams and a secure mounting system, ensuring a snug fit that prevents leaks or shifting during aggressive riding, whether tackling steep climbs, tight turns, or rough terrain. The **AP207 designation** indicates a precise fitment, compatible with the Trail Boss 250R s fuel system, including the carburetor and fuel lines, without requiring modifications. Whether you're hauling gear on long-distance rides or navigating technical trails, this tank delivers the capacity and reliability needed to keep your ATV running smoothly, mile after mile. Built to Polaris exacting standards, it s a straightforward yet essential upgrade for owners seeking to enhance both performance and longevity in their classic Trail Boss.

### **Pros and Cons of Buying a Polaris 5430840 (1986-1987 Trail Boss 250R) Fuel/Gas Tank (AP207)**

1. **Authentic Restoration** If you are restoring a vintage Trail Boss 250R, this OEM tank ensures an accurate period-correct look and fit. Aftermarket tanks may not match the original design or may require modifications.

2. **Durability** Polaris parts, especially from the late '80s, were built to last. The AP207 tank is likely made of sturdy materials like steel or reinforced plastic, which can withstand typical off-road use if maintained properly.

3. **Rarity and Collectibility** Vintage Polaris parts are increasingly difficult to find, making this tank a desirable piece for enthusiasts. Owning an original or high-quality reproduction adds value to a restored bike.

4. **Compatibility** The AP207 is specifically designed for the 1986-1987 Trail Boss 250R, ensuring a proper fit without the need for extensive modifications. This reduces the risk of leaks or improper installation.

5. **Fuel System Reliability** A well-maintained original tank or a high-quality replacement reduces the risk of fuel leaks, which were a common issue with aftermarket parts in older ATVs.

6. **Resale Value** If you plan to sell the bike later, an original or restored fuel tank can enhance its appeal to collectors and vintage ATV buyers.

1. **Age and Wear** The tank may show signs of rust, corrosion, or wear, especially if it has been stored for decades. A thorough inspection is necessary before purchase.

2. **Potential Leaks** Older fuel tanks, particularly those exposed to moisture or improper storage, can develop cracks or weak seams. Testing for leaks (e.g., filling with water and checking for drips) is essential.

3. **Limited Availability** Finding a genuine Polaris AP207 tank for this specific model year may be challenging, especially if you re not purchasing from a reputable dealer or collector. Counterfeit or mismatched parts could be a risk.

4. **Cost** Vintage Polaris parts can be expensive, particularly if they are original or come from a trusted source. Aftermarket alternatives may be cheaper but could compromise fit or quality.

5. **Maintenance Requirements** If the tank is rusted or damaged, restoration (e.g., sanding, repainting, or replacing the tank entirely) may be necessary, adding to the cost and effort.

6. **Fuel Compatibility Concerns** Older tanks may not be compatible with modern fuel additives or ethanol-blended gasoline, which can degrade rubber seals or coatings over time. Testing with a small amount of fuel is advisable.

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### **Conclusion**

Buying a Polaris 5430840 (1986-1987 Trail Boss 250R) fuel tank (AP207) is a worthwhile investment if you prioritize authenticity, durability, and long-term reliability for a vintage ATV. The tank s compatibility with the original model and its potential collectible value make it a strong choice for restorers and enthusiasts. However, the risks of rust, leaks, and limited availability mean you must approach the purchase with caution inspecting the tank thoroughly, testing for leaks, and verifying its authenticity are critical steps.

If you are restoring the bike for personal use and can source a high-quality replacement (original or reproduction) at a reasonable price, this tank is a solid choice. If budget or time constraints make restoration difficult, weigh the cost of repairs against the value of the bike.

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### **Recommendation**

1. **Verify Authenticity** Ensure the tank is genuine (e.g., check Polaris part numbers, serial markings, or purchase from a trusted dealer).

2. **Inspect for Damage** Look for rust, cracks, or weak seams. If the tank is corroded, consider replacing it entirely rather than attempting repairs.

3. **Test for Leaks** Fill the tank with water (or fuel) and check for drips or weak spots. A pressure test can also help identify hidden issues.

4. **Consider Alternatives** If the original tank is too expensive or damaged, explore high-quality aftermarket options (e.g., from reputable manufacturers like **Ride Engineering** or **Polaris Performance Parts**) that offer OEM-like fitment.

5. **Budget for Restoration** Factor in the cost of cleaning, repainting, or replacing the tank if necessary. A restored bike with a properly maintained fuel system will be more reliable and valuable.

6. **Purchase from a Reliable Source** Avoid eBay or private sellers with no return policy. Instead, buy from a **Polaris dealer, specialty ATV parts store, or a trusted collector** to ensure quality and authenticity.

**Final Verdict:** If you are committed to restoring the Trail Boss 250R authentically and can source a sound AP207 tank, it is a valuable addition. However, if the tank is damaged or the cost is prohibitive, prioritize a reliable replacement that meets your needs without unnecessary expense. Always prioritize safety and functionality over cosmetic perfection.

Details:

This gas tank is in very good condition and shows normal signs of wear. Removed From: 1986 Polaris Trail Boss 250R with miles. Change your mind, don't need the part, or just wan't what you are looking for. 86-87 Polaris Trail Boss 250R OEM Fuel Gas Tank 5430840 AP207.

part #: 5430840 prices

• $39.99-$299.99

specifications fuetanintak:

• for models: 250r, Trail, Boss
• for makes: Polaris
• for years: 1986-1987
• mpn: 5430840
• type: Gas Tank

seller fuetanintak:

• # reviews: 44053
• rating: 99.7%
• city: Eau Claire, Wisconsin

returns fuetanintak:

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

shipping fuetanintak:

• transit: 4-10 Days
• service: Standard
• cost: $0.00
• type: Fixed
• class: Standard

offer fuetanintak:

• started: May 29, 2026
• sold: 0
• options: Ship-to-home
• availability: In Stock
• best offers: True
• quantity: 1

payments fuetanintak:

• other
• wallet: Google-pay
• credit card: Discover

general fuetanintak:

• condition: Used
• ATV, Side-by-Side UTV Parts Accessories > Air Intake Fuel Delivery > Fuel Tanks

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