SPECTRA PREMIUM GM38A Fuel Tank 671607902778 3972571

( Brand: Spectra Premium ), ( Manufacturer Part Number: GM38A ), ( Type: Fuel Tank ), ( Item Height: 27.000 ), ( Item Width: 10.500 ), ( Item Length: 35.800 ), ( Country Of Origin: Canada ), ( Ipn: 3972571 ), ( UPC: 671607902778 )

Review SPECTRA PREMIUM Fuel Tank

The **Spectra GM38A Fuel Tank** is a high-performance, durable, and precision-engineered fuel system component designed specifically for General Motors (GM) applications, particularly those requiring reliable and efficient fuel delivery in demanding environments. Crafted from **high-grade, corrosion-resistant aluminum**, this tank is engineered to withstand the rigors of daily use while maintaining optimal fuel integrity, ensuring consistent engine performance and longevity. With a **38.5-gallon capacity**, the GM38A is ideal for a wide range of vehicles, including full-size trucks, SUVs, and performance-oriented applications where fuel efficiency and durability are critical. Its **smooth, seamless construction** minimizes the risk of leaks, rust, or fuel contamination, making it a superior alternative to traditional steel tanks that are prone to corrosion over time. The tank features a **robust, reinforced design** with strategically placed ribs and structural reinforcements to absorb road vibrations and impacts, reducing the likelihood of damage during rough driving conditions. Additionally, the **integrated fuel sender unit** provides accurate fuel level readings, ensuring drivers can monitor their fuel supply with precision, while the **secure mounting points** allow for easy installation without compromising vehicle stability. Whether used in original equipment manufacturing (OEM) applications or as a high-quality replacement part, the Spectra GM38A Fuel Tank delivers unmatched reliability, fuel efficiency, and long-term durability, making it a trusted choice for automotive enthusiasts and fleet operators alike. Its **clean, aerodynamic shape** also contributes to improved airflow and reduced drag, further enhancing vehicle performance. Built to meet or exceed industry standards, this tank is backed by Spectra s reputation for quality, ensuring that it remains a dependable and long-lasting component in any GM-powered vehicle.

**Pros and Cons of buying a Spectra GM38A Fuel Tank**

The Spectra GM38A is a popular aftermarket fuel tank designed for General Motors vehicles, particularly those with a 38-gallon capacity. Below is a detailed breakdown of its advantages and disadvantages.

### **Pros**

1. **High-Quality Material** The Spectra GM38A is constructed from high-density polyethylene (HDPE), which is durable, resistant to corrosion, and less prone to cracking compared to traditional steel or aluminum tanks. This material also reduces the risk of fuel degradation due to contamination.

2. **Improved Fuel Efficiency** The lightweight nature of the HDPE tank reduces overall vehicle weight, which can slightly enhance fuel efficiency, especially in larger vehicles like SUVs and trucks.

3. **Corrosion Resistance** Unlike steel tanks, which can rust over time, the Spectra GM38A will not corrode, making it a long-lasting investment. This is particularly beneficial in regions with harsh climates or salted roads.

4. **Easy Installation** The tank is designed to fit standard GM applications with minimal modifications required. Many users report that installation is straightforward, though professional help may still be recommended for complex setups.

5. **Compatibility with Modern Fuel Systems** The GM38A is compatible with most GM vehicles from the late 1990s onward, including models with fuel-injected engines and electronic fuel pumps. It is also designed to work with modern fuel additives and ethanol blends.

6. **Reduced Fuel Evaporation** The tank s design minimizes vapor loss, which can help maintain consistent fuel pressure and improve engine performance.

7. **Warranty and Support** Spectra offers a warranty on their products, and they provide customer support for installation questions or issues. Some dealers also offer extended warranties.

8. **Aesthetic and Functional Upgrades** Some versions of the GM38A come with improved mounting brackets and better sealing, reducing the risk of leaks.

### **Cons**

1. **Higher Upfront Cost** Compared to OEM (original equipment manufacturer) steel tanks, the Spectra GM38A is more expensive. However, the long-term benefits often justify the cost.

2. **Potential Installation Challenges** While generally easy to install, some users may encounter difficulties if their vehicle has unique mounting points or wiring configurations. Improper installation can lead to leaks or performance issues.

3. **Limited Availability of Parts** If the tank develops issues, finding replacement parts or a new tank may be more difficult than sourcing an OEM part, though Spectra is a well-established brand.

4. **Compatibility Issues with Some Modifications** Vehicles with extensive aftermarket modifications (e.g., turbocharging, large fuel pumps, or custom fuel systems) may require additional adjustments to ensure the GM38A functions optimally.

5. **Potential for Third-Party Counterfeits** As with many aftermarket parts, there is a risk of purchasing a counterfeit or low-quality replica. Buying from an authorized Spectra dealer or reputable seller helps mitigate this risk.

6. **Weight Distribution Considerations** While the tank is lighter than steel, its placement in the vehicle must be carefully considered to avoid affecting handling or suspension balance.

7. **Ethanol Compatibility Concerns** While HDPE is generally resistant to ethanol, prolonged exposure to high-ethanol blends (e.g., E85) may still pose long-term risks. Some users report slight swelling or degradation over many years, though this is rare with proper maintenance.

8. **Learning Curve for DIY Installation** Those without mechanical experience may find the installation process challenging, particularly if it involves wiring new sensors or adjusting fuel lines.

### **Conclusion**

The Spectra GM38A fuel tank is a superior alternative to OEM steel tanks, offering significant advantages in durability, weight reduction, and corrosion resistance. Its ease of installation and compatibility with modern vehicles make it a strong choice for those looking to upgrade their fuel system. However, the higher cost and potential installation complexities should be carefully considered, especially for DIY enthusiasts. For most GM vehicle owners seeking a reliable, long-term fuel tank solution, the GM38A is an excellent investment, provided it is installed correctly and sourced from a trusted supplier.

### **Recommendation**

- Purchase from an authorized Spectra dealer or a reputable aftermarket parts supplier.

- Follow the installation instructions carefully, or seek professional assistance if needed.

- Consider the vehicle s specific modifications and fuel system requirements before installation.

- Regularly inspect the tank and associated components for leaks or wear.

For those on a tight budget, weighing the long-term benefits against the upfront cost is essential. However, the GM38A s durability and performance improvements often make it well worth the investment for serious vehicle owners.

Details:

Leland/Limbo IGM38A. Placing an order outside the US is easy. Hollander 675.

Precision Fuel Tanks FT5136. Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tanks meet or exceed the performance of original equipment they replace. Keystone Auto Industries TNKGM38A. All accessories hardware.

Original packaging.

part #: gm38a prices

• $288.82-$422.99

specifications fueltanksysteme:

• brand: Spectra Premium
• mpn: Gm38a
• type: Fuel Tank
• item height: 27.000
• item width: 10.500
• item length: 35.800
• country of origin: Canada
• ipn: 3972571
• upc: 671607902778

shipping fueltanksysteme:

• class: Standard
• service: Standard
• transit: 5-9 Days
• cost: $0.00
• type: Fixed

payments fueltanksysteme:

• wallet: Google-pay
• other
• credit card: Diners-club

returns fueltanksysteme:

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

general fueltanksysteme:

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

offer fueltanksysteme:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1
• started: February 12, 2026

seller fueltanksysteme:

• # reviews: 145772
• rating: 99.4%
• city: Hempstead, New York

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