1. Fuel Tanks & Filler Necks Deals
  2. sku: 23314142641308604
  3. TRQ FUEL TANK 86NVTY

TRQ FUEL TANK 86NVTY Gas V3500

fits model: Fi. make: Chevy. year: 1989–1991.

86nvty Trq Fuel Tank Fits Chevy V3500 1989-1991 Fi Gas

( Brand: Trq Fuel Tank ), ( Manufacturer Part Number: 86NVTY ), ( Part Type: Fuel Tank ), ( Engine: Fi Gas ), ( Compatible Make/model: Chevrolet V3500 ), ( Compatible Years: 1989 1990 1991 89 90 91 ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review TRQ FUEL TANK Chevy V3500 Gas fits FI 1989–1991

The **OEM Replacement Fuel Tank for 1989-1991 Chevrolet V3500 Suburban/GMC Suburban (86NVTY, Fuel-Injected Gasoline)** is a meticulously engineered aftermarket component designed to restore factory performance, reliability, and fuel capacity to your classic full-size SUV. Crafted to exacting specifications, this high-quality replacement tank ensures a precise fit with the original 1989 1991 GM 5.0L V8 (LF1/L36) fuel-injected powertrain, maintaining the vehicle s intended fuel delivery system while addressing common wear issues like leaks, corrosion, or fuel line deterioration that often plague aging vehicles. Constructed from durable, corrosion-resistant materials typically a reinforced steel or high-grade aluminum alloy this tank is built to withstand the rigors of daily driving, off-road excursions, or long-distance travel, providing a seamless upgrade that eliminates the need for costly modifications or compromises in fuel efficiency. The tank s integrated fuel sender unit is calibrated to match the original vehicle s gauge accuracy, ensuring reliable fuel level readings and preventing false low-fuel warnings that can disrupt trips. For added convenience, many versions feature a **top-fill design** with a secure, leak-proof cap, reducing spillage and contamination while simplifying refueling. Whether you re restoring a show-quality classic or maintaining a daily driver, this fuel tank delivers the performance and longevity expected from an OEM-quality replacement, allowing you to enjoy your V3500 with confidence in its fuel system s integrity.

### Pros and Cons of Buying a Used 1989-1991 Chevrolet V3500 Fuel-Injected Gas Truck with an 86NVTY Fuel Tank

#### **Pros**

1. **Reliability and Durability** The 1989-1991 Chevrolet V3500 (also known as the GMC Topkick) was built on a solid foundation with a proven V8 engine (most commonly the 5.0L or 5.7L V8). These engines, especially the 5.0L (Vortec in later models), are known for longevity when properly maintained. The 86NVTY fuel tank is a standard design for this era, meaning parts and labor are widely available.

2. **Strong Engine Options** The fuel-injected (FI) versions of these trucks (introduced in 1988) were an upgrade over carbureted models, offering better fuel economy, smoother power delivery, and easier maintenance. The 5.0L V8 (in 1989-1991) is particularly robust, capable of handling heavy loads and towing if properly maintained.

3. **Availability of Parts** As a mid-80s Chevy/GMC truck, this model benefits from decades of aftermarket support. Fuel tanks, engines, transmissions, and body parts are still widely available, making repairs and modifications easier and more affordable than on newer or rarer vehicles.

4. **Classic Truck Appeal** The V3500 has a cult following among classic truck enthusiasts. Restoring or maintaining one can be rewarding for those who enjoy working on older vehicles. The truck s size and presence also make it a standout in a lineup of modern trucks.

5. **Potential for Modifications** The platform allows for a wide range of modifications, from engine swaps (e.g., LS engines) to suspension upgrades, bed liners, and custom paint. The fuel-injected system also makes tuning easier compared to carbureted models.

6. **Lower Purchase Price** Compared to newer trucks, the cost of acquiring a 1989-1991 V3500 is significantly lower, making it an attractive option for buyers on a budget. This also means more money can be allocated to repairs or upgrades.

7. **Towing and Hauling Capability** With the right setup (e.g., a heavy-duty frame, proper suspension, and a strong engine), these trucks can handle moderate towing and hauling tasks. The 5.7L V8 (in later 1991 models) is particularly capable in this regard.

8. **Simpler Electronics** While fuel injection is an improvement over carburetors, the electronics on these trucks are far less complex than those in modern vehicles. This means diagnostics and repairs can often be done with basic tools and knowledge.

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#### **Cons**

1. **Age and Wear** At 30 years old, these trucks are likely to show signs of wear, including rust (especially in the frame, fuel tank, and undercarriage), worn suspension components, and aging belts and hoses. Rust can be a major issue if the truck was driven in harsh conditions or not properly maintained.

2. **Fuel Tank Concerns** The 86NVTY fuel tank is a standard design, but it is prone to rust and leaks, particularly around the welds and seams. A rusted fuel tank can lead to fuel leaks, which are both a safety hazard and a pain to repair. Always inspect the tank for rust or replace it if it s compromised.

3. **Fuel Injection Reliability** While fuel injection is an improvement over carburetors, the systems on these trucks can be finicky. Sensors, injectors, and the fuel pump may fail over time, requiring occasional replacement. The electronic control module (ECM) can also be a weak point, especially if the truck has been modified or driven aggressively.

4. **Transmission Issues** The 4L60-E (automatic) and 4L60 (manual) transmissions used in these trucks are generally reliable, but they can develop leaks, slipping, or internal wear over time. Fluid changes are crucial, but even with proper maintenance, transmissions can fail without warning.

5. **Suspension and Steering Wear** The suspension components (shocks, struts, bushings, and ball joints) will likely need replacement. The steering can also become stiff or imprecise due to worn tie rods, rack seals, or idler arm bushings.

6. **Electrical System Quirks** The electrical system on these trucks can be inconsistent, with issues like flickering lights, intermittent power windows, or failing alternators. The wiring harnesses may also degrade over time, leading to random electrical gremlins.

7. **Emissions and Modern Compliance** If you plan to drive this truck frequently, you may encounter issues with emissions compliance, especially in areas with strict regulations. Some states require smog checks, and older trucks may not pass without modifications (e.g., installing an OBD-II compliant system).

8. **Fuel Economy Limitations** While better than carbureted models, the fuel economy of these trucks is still modest by modern standards. The 5.0L V8, for example, averages around 12-15 MPG in the city and 16-18 MPG on the highway. This can add up in cost over time, especially with rising fuel prices.

9. **Limited Modern Safety Features** These trucks lack modern safety features like stability control, airbags (beyond basic driver/passenger airbags in later models), or advanced driver-assistance systems. Safety may be a concern, particularly in collisions.

10. **Insurance Costs** Older trucks can be expensive to insure, especially if they are high-value or modified. The cost of comprehensive coverage may outweigh the savings from the lower purchase price.

11. **Resale Value** Unlike newer trucks, the V3500 does not hold its value well. If you plan to sell it in the future, you may not recoup a significant portion of your investment, especially if it requires extensive work.

12. **Driving Experience** The ride can be harsh compared to modern trucks, with less isolation from road imperfections. The manual transmission models require more effort to drive, and the automatic transmission can feel sluggish or inconsistent if not well-maintained.

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### **Conclusion**

Buying a 1989-1991 Chevrolet V3500 with an 86NVTY fuel tank and fuel injection can be a rewarding experience for the right buyer particularly those who enjoy working on classic trucks, appreciate the vehicle s ruggedness, or are looking for a project with strong potential. The truck s reliability, availability of parts, and modding potential make it a compelling choice for enthusiasts. However, the age of the vehicle means that rust, fuel tank integrity, and mechanical wear are significant concerns that must be addressed before purchase.

If you are mechanically inclined, have a budget for repairs, and are willing to invest time in maintenance, this truck can be a fantastic addition to your garage. On the other hand, if you prioritize modern convenience, fuel efficiency, safety, or low long-term costs, a newer truck may be a better fit.

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### **Recommendation**

If you decide to proceed with purchasing one of these trucks, follow these steps to minimize risks:

1. **Inspect the Fuel Tank Thoroughly** Have the 86NVTY fuel tank professionally inspected for rust or leaks. If it s compromised, budget for a replacement or a new tank. Consider installing a secondary fuel tank or a fuel pump in the bed to mitigate risks.

2. **Check the Engine and Transmission** Ensure the engine is running smoothly with no unusual noises, leaks, or smoke. The transmission should shift smoothly (for automatics) or operate without grinding (for manuals). Consider an oil analysis or compression test if possible.

3. **Test Drive and Listen for Issues** Pay attention to suspension noises, steering play, and electrical quirks. Test the brakes, lights, and all accessories to ensure they function properly.

4. **Review Maintenance Records** If available, ask for service records to confirm that the truck has been properly maintained. Regular oil changes, transmission fluid changes, and belt replacements are critical.

5. **Budget for Repairs** Assume you will need to spend at least $1,000 $3,000 on repairs, depending on the truck s condition. Prioritize fixing the fuel tank, suspension, and electrical system first.

6. **Consider a Lower Mileage Example** If possible, aim for a truck with under 100,000 miles, as these are more likely to have been well-maintained. Look for models with the 5.0L V8 (1989-1990) or the 5.7L V8 (1991), as the latter is more capable.

7. **Modify for Modern Use** If you plan to drive the truck regularly, consider installing an OBD-II compliant system for emissions compliance, upgrading the suspension for comfort, and adding modern safety features like a backup camera or LED lighting.

8. **Drive It for Fun or Practical Use** If you re buying this truck primarily for enjoyment, restoration, or occasional use, the cons may be outweighed by the fun and satisfaction of working on it. If you need a daily driver or a work truck, weigh the trade-offs carefully.

In summary, the 1989-199

Details:

Product Specifications Attached Sump: No. Powder coated for rust resistance. Baffled Sump: Yes. Heavy Duty: designed to perform under harsh conditions.

Lock Ring Included: Yes. length : 13.12 in. Sending Unit Included: No. TRQ Fuel Tank Fits Chevy V3500 1989 - 1991 FI GAS 86NVTY: Brand: condition: New Notes: Tank, Features:Zinc Coated Steel.

Filler Neck Attached: No. Capacity: 20 gal. Detailed Applications Years: Vehicle: Engine: 1989 - 1991 Chevrolet V3500FI GAS. O-Ring Included: Yes.

part #: 86nvty price

  • $174.58

specifications fueltanksysteme:

  • for models: Fi
  • for makes: Chevy
  • for years: 1989-1991
  • brand: Trq Fuel Tank
  • mpn: 86nvty
  • part type: Fuel Tank
  • engine: Fi Gas
  • compatible make/model: Chevrolet V3500
  • compatible years: 1989 1990 1991 89 90 91
  • manufacturer warranty: 12 Month Warranty
  • attention: Read Full Description To Confirm Fitment
  • cs-sku: 400

returns FuelTanksysteme:

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

shipping FuelTanksysteme:

  • service: Economy
  • cost: $0.00
  • type: Fixed
  • class: Economy
  • transit: 2-6 Days

general FuelTanksysteme:

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

offer FuelTanksysteme:

  • options: Ship-to-home
  • sold: 0
  • availability: In Stock
  • quantity: 1
  • started: March 26, 2026

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seller FuelTanksysteme:

  • # reviews: 23416
  • city: Moonachie, New Jersey
  • rating: 99.1%
for models: fi, for makes: chevy, for years: 1989-1991, part type: fuel tank, engine: fi gas, compatible make/model: chevrolet v3500, compatible years: 1989 1990 1991 89 90 91, manufacturer warranty: 12 month warranty, attention: read full description to confirm fitment, cs-sku: 400,
category: auto parts > car truck parts accessories > air fuel delivery > fuel tanks filler necks, sku: 23314142641308604,
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  • New. Offer #1 priced at $174.58 + $0.00 shipping estimate = $174.58* total. O-Ring Included: Yes. 1989-1991 Chevrolet V3500 FI GAS.FREE SHIPPING

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