1. Fuel Tanks & Filler Necks Deals
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  3. DIY SOLUTIONS 21765SHVM

DIY SOLUTIONS 21765SHVM Fuel Tank Gas V1500

fits model: Suburban. make: Gmc. year: 1987–1991.

21765shvm Diy Solutions For 1987-1991 Gmc V1500 Suburban Fuel Tank 1988 1989 1990 Gas

( Brand: Diy Solutions ), ( Manufacturer Part Number: 21765SHVM ), ( Part Type: Fuel Tank ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: Fuel Tank Gas Engine ), ( Years: 1987 1988 1989 1990 1991 ), ( Application: Gmc V1500 Suburban Fuel Tank ), ( Cs-sku: 400 )

Review DIY SOLUTIONS Gmc V1500 Fuel Tank Gas fits SUBURBAN 1987–1991

The **21765SHVM fuel tank** is a meticulously crafted, high-quality replacement part designed specifically for the **1987-1991 GMC V1500 Suburban** models equipped with gasoline engines, including the **1988, 1989, and 1990 trim years**. Engineered to meet or exceed OEM standards, this fuel tank is built from durable **steel construction**, ensuring long-lasting performance and resistance to corrosion, even in harsh driving conditions. Its precise fitment guarantees a seamless installation, eliminating leaks, fuel odors, or potential fuel line disconnections that can plague aftermarket alternatives. The tank features a **robust, reinforced design** with a **double-walled construction** in critical areas, providing added structural integrity while maintaining compatibility with the vehicle s original fuel system components, including the **fuel pump, sender unit, and filler neck**. Whether replacing a damaged tank due to rust, an accident, or general wear, this **direct-fit replacement** ensures reliable fuel delivery and optimal engine performance without compromising the Suburban s handling or fuel efficiency. Built to withstand the demands of daily driving, this tank is an essential upgrade for owners seeking a **long-term, hassle-free solution** that restores their vehicle s functionality and resale value.

### Pros and Cons of Buying a 21765SHVM Fuel Tank for a 1987 1991 GMC V1500 Suburban (Gas)

#### **Pros:**

1. **Exact Fitment** The 21765SHVM is a direct replacement for the original fuel tank in 1987 1991 GMC Suburban models, ensuring proper alignment with the frame rails, fuel lines, and mounting points. This eliminates the need for modifications or adapters, reducing installation complexity.

2. **Improved Durability** Modern fuel tanks are often constructed with stronger materials (e.g., high-grade steel or reinforced plastic) compared to older OEM tanks, which may have developed rust or thinning over time. A new tank reduces the risk of leaks or structural failure.

3. **Enhanced Safety** Newer fuel tanks typically comply with updated safety standards, including better sealing, corrosion resistance, and reduced risk of fuel evaporation or vapor leaks. This can lower the chance of fire hazards or fuel-related mechanical issues.

4. **Extended Lifespan** Replacing an aging fuel tank with a new one prevents long-term problems like rust holes, fuel line corrosion, or tank collapse. This can save money on future repairs and extend the vehicle s operational life.

5. **Compatibility with Modern Additives** Older fuel tanks may degrade when exposed to modern fuel additives or ethanol blends. A new tank is less likely to be affected by these chemicals, ensuring better performance and longevity.

6. **Warranty Coverage** Many aftermarket or OEM replacement tanks come with warranties (e.g., 1 5 years), providing peace of mind against manufacturing defects or early failures.

7. **Potential Fuel Efficiency** Some newer tanks are designed with smoother interiors or optimized shapes to reduce turbulence and improve fuel flow, which may slightly enhance engine performance and efficiency.

8. **Easier Installation** Since the tank is a direct replacement, installation is straightforward for most mechanics or DIYers with basic tools. No major modifications to the vehicle s frame or fuel system are required.

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#### **Cons:**

1. **Cost** A new fuel tank is an expensive upgrade, typically ranging from **$300 $600 **, depending on whether it s OEM, aftermarket, or a high-quality brand. This can be a significant upfront investment, especially if the rest of the vehicle is older or needs other repairs.

2. **Labor Time** Replacing a fuel tank requires draining the existing fuel, disconnecting lines, removing the old tank, and installing the new one. This is a labor-intensive job that may take **3 6 hours**, depending on the mechanic s experience. If doing it yourself, it requires patience and attention to detail.

3. **Fuel Drainage and Disposal** The old fuel must be safely drained and disposed of (often at a recycling center), which adds an extra step and potential cost if not handled properly.

4. **Potential for Overkill** If the original tank was still functional (e.g., no leaks, minimal rust), replacing it may be unnecessary. A thorough inspection of the existing tank could save money if it can be repaired or is in decent condition.

5. **Compatibility with Aftermarket Mods** If the vehicle has aftermarket modifications (e.g., lifted suspension, custom exhaust), the new tank must still fit properly. Some aftermarket tanks may not account for these changes, requiring additional adjustments.

6. **Risk of Poor-Quality Tanks** Cheaper aftermarket tanks may have thin materials, poor welds, or inadequate corrosion protection. Researching the brand and reading reviews can help mitigate this risk, but there s still a chance of purchasing a subpar product.

7. **Time Off the Road** The vehicle will be out of commission for the duration of the installation, which can be inconvenient for daily drivers.

8. **No Guarantee Against Future Issues** While a new tank reduces risks, it s not immune to damage from accidents, road debris, or improper installation. The tank may still need replacement in the future if subjected to harsh conditions.

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### **Conclusion:** Replacing the fuel tank in a 1987 1991 GMC Suburban with a **21765SHVM or equivalent** is a **highly recommended upgrade** if:

- The original tank shows **signs of rust, leaks, or structural weakness**.

- You plan to **keep the vehicle long-term** and want to avoid future fuel-related failures.

- You re **modifying the vehicle** (e.g., adding weight, changing suspension) that could stress the tank.

- You want **peace of mind** knowing the tank is safe and reliable.

However, if the original tank is **still in good condition** and the vehicle has **low mileage or limited use**, replacing it may not be justified. In such cases, **regular inspections and maintenance** (e.g., cleaning rust, checking for leaks) could be a more cost-effective approach.

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### **Recommendation:**

1. **Inspect the Current Tank Thoroughly** Before purchasing a replacement, have a mechanic check the existing tank for rust, punctures, or fuel line integrity. If it s salvageable, repair it instead.

2. **Choose a High-Quality Replacement** Opt for an **OEM or reputable aftermarket brand** (e.g., Carter, Fuel Tank Depot, or local specialty shops) with a warranty. Avoid no-name brands with poor reviews.

3. **Budget for Labor** If not DIYing, factor in **$150 $300 in labor costs** depending on the shop s rates.

4. **Consider Fuel System Upgrades** If replacing the tank, take the opportunity to **clean or replace fuel lines, the fuel pump, and fuel filter** to ensure the entire system is reliable.

5. **Protect the New Tank** After installation, **avoid driving over rough terrain** that could damage the tank, and **check for leaks** during the first few fill-ups.

**Final Verdict:** If the original tank is failing or you want to future-proof the vehicle, **the 21765SHVM or equivalent is a wise investment**. If the tank is still good, prioritize other maintenance needs first. Always weigh the cost against the vehicle s overall condition and your long-term plans for it.

Details:

Parts Geek - For 1987 - 1991 GMC V1500 Suburban Fuel Tank 21765SHVM 1988 1989 1990 GAS: Review Fitment Notes to Ensure Proper Fit condition: New Brand: DIY Solutions Notes: Gas Engine Capacity: 40 Gallon 12 Month Warranty Vehicle: Engine: Suburban GAS.

part #: 21765shvm price

  • $263.28

specifications fueltanksysteme:

  • for models: Suburban
  • for makes: Gmc
  • for years: 1987-1991
  • brand: Diy Solutions
  • mpn: 21765shvm
  • part type: Fuel Tank
  • manufacturer warranty: 12 Month Warranty
  • notes: Fuel Tank Gas Engine
  • years: 1987 1988 1989 1990 1991
  • application: Gmc V1500 Suburban Fuel Tank
  • cs-sku: 400

offer fueltanksysteme:

  • quantity: 1
  • options: Ship-to-home
  • availability: In Stock
  • started: April 14, 2026
  • sold: 0

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  • city: Hempstead, New York
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  • condition: New
  • Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks

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for models: suburban, for makes: gmc, for years: 1987-1991, part type: fuel tank, manufacturer warranty: 12 month warranty, notes: fuel tank gas engine, years: 1987 1988 1989 1990 1991, application: gmc v1500 suburban fuel tank, cs-sku: 400,
category: auto parts > car truck parts accessories > air fuel delivery > fuel tanks filler necks, sku: 23752911197088603,
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  • New. Offer #1 priced at $263.28 + $0.00 shipping estimate = $263.28* total. Fuel Tank Capacity: 40 Gallon 1987-1991 GMC V1500 Suburban GAS.FREE SHIPPING

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