AEROMOTIVE 18421 Stealth Fuel Tank Lph 684980009620

( Brand: Aeromotive ), ( Manufacturer Part Number: 18421 ), ( Part Type: Fuel Tank ), ( Country Of Origin: Twn ), ( UPC: 684980009620 )

Review AEROMOTIVE Gen Stealth Fuel Tank Lph fits LEMANS GTO 340 1966–1967

The **Aeromotive 18421 Gen-Stealth Fuel Tank** is a meticulously engineered, high-performance replacement fuel tank designed specifically for the iconic 1965 1967 Pontiac GTO and 1966 1967 Pontiac Lemans, including the legendary 340 LPI (Low-Performance Injection) models. Crafted from durable, lightweight aluminum, this tank is built to withstand the demands of modern high-performance applications while maintaining the classic aesthetic of the original. Unlike generic aftermarket alternatives, the Gen-Stealth tank features a sleek, streamlined design that seamlessly integrates with the vehicle s body lines, preserving the muscle car s aggressive yet refined silhouette. Its precision-machined construction ensures a perfect fit, eliminating the need for excessive modifications or compromises in installation. The tank s internal design incorporates a high-flow fuel pickup and optimized fuel delivery system, reducing turbulence and improving overall fuel efficiency critical for engines pushing beyond stock performance levels. For the discerning enthusiast seeking both form and function, the Aeromotive Gen-Stealth tank delivers a perfect blend of heritage and cutting-edge engineering, making it an essential upgrade for any GTO or Lemans owner aiming to enhance reliability, performance, and visual appeal. Whether under the hood of a restored classic or a high-revving hot rod, this tank stands as a testament to Aeromotive s commitment to excellence in aftermarket automotive solutions.

### **Pros and Cons of buying a Aeromotive 18421 Gen Stealth Fuel Tank for a 1965-1967 GTO or 1966-1967 Lemans (340 LPH)**

1. **High-Quality Construction** The Aeromotive Gen Stealth fuel tank is built with premium materials, including a high-strength steel frame and a durable, corrosion-resistant exterior. This ensures longevity and resistance to wear, which is crucial for classic cars exposed to varying weather conditions.

2. **Improved Fuel Efficiency** The tank s design reduces drag and improves aerodynamics, which can slightly enhance fuel economy compared to stock or aftermarket alternatives that may add unnecessary bulk.

3. **Better Fuel Capacity** The Gen Stealth tank retains the original fuel capacity (or sometimes increases it slightly) while maintaining a sleek, factory-like appearance. This means you won t sacrifice range or convenience.

4. **OEM Fitment with Modern Refinements** While it s designed to replicate the look of the original fuel tank, Aeromotive incorporates modern engineering, such as improved fuel line routing and better sealing, reducing the risk of leaks or fuel vapor issues.

5. **Enhanced Aesthetics** The tank is meticulously crafted to match the styling of the original, ensuring a seamless fit with the car s body. This is particularly important for show cars or those aiming for concours-level presentation.

6. **Durability in Harsh Conditions** The tank is built to withstand extreme temperatures, UV exposure, and road debris, which is essential for daily drivers or cars used in track or rally environments.

7. **Compatibility with Performance Modifications** If you plan to add a supercharger, turbocharger, or other performance upgrades, the Gen Stealth tank is designed to handle increased fuel demands without compromising structural integrity.

8. **Ease of Installation** Aeromotive provides detailed installation guides and often includes necessary hardware, making the process more straightforward for those with basic mechanical skills. Professional installers also find it relatively straightforward to fit.

9. **Corrosion Resistance** The tank is treated with protective coatings to prevent rust and corrosion, which is a common issue with older fuel tanks, especially in humid or coastal climates.

10. **Brand Reputation** Aeromotive is a well-respected manufacturer in the performance and classic car aftermarket, known for reliability and customer support. This gives buyers confidence in the product s quality.

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1. **Cost** The Aeromotive Gen Stealth fuel tank is not a budget-friendly option. Prices typically range between **$800 and $1,200**, depending on availability and retailer markups. This can be a significant investment for a single component, especially for enthusiasts on a tight budget.

2. **Weight** While the tank is sturdy, it may be slightly heavier than the original or some aftermarket alternatives. This could have a minor impact on handling, though the difference is usually negligible unless the car is heavily modified for weight reduction.

3. **Installation Complexity** While the installation is manageable, it requires careful attention to detail, especially when routing fuel lines and ensuring proper sealing. Improper installation could lead to leaks or fuel vapor issues, which are critical in classic cars with vintage fuel systems.

4. **Limited Customization** The Gen Stealth tank is designed to replicate the original appearance, so if you want a unique or heavily modified look (e.g., custom paint, non-standard shapes), this may not be the best choice.

5. **Potential for Aftermarket Parts Shortages** Like many high-quality aftermarket components, parts for the Gen Stealth tank may not always be readily available, and delays in ordering could extend installation timelines.

6. **Not a Drop-In Replacement for All Models** While it fits the 1965-1967 GTO and 1966-1967 Lemans, there may be minor adjustments required depending on the specific year or trim. Always verify fitment before purchasing.

7. **Resale Value Impact** If you plan to sell the car in the future, some purists may prefer a fully original or restored fuel tank. However, the Gen Stealth is often considered an acceptable upgrade for show cars or performance applications.

8. **Potential for Overkill** If your car is primarily a weekend driver or a static display piece, the cost and effort may not justify the investment compared to a simpler, more affordable aftermarket tank.

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The **Aeromotive 18421 Gen Stealth fuel tank** is an excellent choice for enthusiasts who prioritize **durability, aesthetics, and performance** in their 1965-1967 GTO or 1966-1967 Lemans. It strikes a balance between **modern engineering and classic styling**, making it ideal for cars that see regular use, track days, or concours-level restoration. The investment is justified if you value **long-term reliability, corrosion resistance, and a seamless fit** that enhances both function and appearance.

However, if **budget constraints** or **minimal modifications** are a priority, you may consider **lower-cost aftermarket alternatives** or even a **restored original tank** from a reputable source. The Gen Stealth is not the best option for those seeking **ultra-lightweight or highly customized** solutions.

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- You want a **high-quality, long-lasting** replacement that improves upon the original.

- Your car is used **daily, on the track, or in shows** where durability and appearance matter.

- You re willing to invest in **premium components** that enhance both performance and aesthetics.

- You value **Aeromotive s reputation** for reliability and customer support.

- You re on a **tight budget** and can find a **restored original tank** or a **simpler aftermarket option** at a lower cost.

- Your car is a **static display piece** or a **weekend project** where the original tank is sufficient.

- You prioritize **weight reduction** over minor aesthetic improvements.

**Final Verdict:** For most **1965-1967 GTO or Lemans owners** who want a **modern yet classic solution**, the Aeromotive Gen Stealth tank is a **strong recommendation**. It s one of the best aftermarket options available, offering a **near-perfect blend of function and form**. Just ensure you budget for the cost and plan for proper installation to maximize its benefits.

Details:

American Express.

part #: 18421 price

• $923.48

specifications fueltanksysteme:

• for models: Gto, 340, Lemans
• for years: 1966-1967
• brand: Aeromotive
• mpn: 18421
• part type: Fuel Tank
• country of origin: Twn
• upc: 684980009620

general fueltanksysteme:

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

returns fueltanksysteme:

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

seller fueltanksysteme:

• # reviews: 629234
• rating: 99.4%
• city: , Ohio

shipping fueltanksysteme:

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

offer fueltanksysteme:

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

payments fueltanksysteme:

• other
• wallet: Paypal
• credit card: Visa

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