GATES SX-5838 Fuel Tank Gas Cap Fiero Hu 2.5L 2.8L L4 V6

( Brand: Gates ), ( Manufacturer Part Number: SX-5838 ), ( Type: Fuel Tank Cap ), ( Placement On Vehicle: Air Fuel Delivery Hardware Fasteners Fittings ), ( Item Width: 3.630 ), ( Item Height: 3.000 ), ( Manufacturer Warranty: Recommended Service Interval ), ( Ipn: C211 46-36 ), ( Compatible Model: Fiero ), ( Compatible Year: 1988 1987 1986 1985 1984 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Fuel Tank Cap )

Review GATES Fuel Tank Cap Pontiac Fiero 2.5l 2.8l L4 V6 Gas Delivery Hu fits C211 1984–1988

The **Gates SX-5838 Fuel Tank Cap** is a meticulously engineered replacement part designed specifically for the iconic 1984 through 1988 Pontiac Fiero, catering to both the 2.5L inline-four and 2.8L V6 gasoline-powered variants of this legendary sports car. Crafted from high-quality, durable materials, this fuel tank cap ensures a secure and airtight seal, preventing fuel vapors from escaping while maintaining optimal pressure within the fuel system. The cap features a robust, threaded design that aligns perfectly with the Fiero s fuel filler neck, providing a snug fit that resists leaks and contamination from dust, debris, or moisture. Its sleek, aerodynamic shape not only complements the Fiero s sporty aesthetic but also minimizes turbulence when refueling, reducing the risk of spills. Engineered with precision, the Gates SX-5838 incorporates a reliable spring-loaded mechanism that guarantees a consistent seal every time, whether the cap is tightened by hand or with a tool. This replacement part is built to withstand the demands of daily driving, including exposure to varying temperatures and fuel system pressures, ensuring long-term reliability. Whether restoring a classic Fiero to its original condition or maintaining a well-loved collector s car, the Gates SX-5838 is an essential component that upholds the integrity of the vehicle s fuel system while delivering the performance and peace of mind expected from a trusted automotive brand.

### Pros and Cons of buying a Gates SX-5838 Fuel Tank Cap for a 1984 1988 Pontiac Fiero (2.5L/2.8L L4/V6 Gas)

1. **Direct Fitment** The Gates SX-5838 is specifically designed for the 1984 1988 Pontiac Fiero, ensuring compatibility with both the 2.5L and 2.8L engines, as well as the V6 variant. This eliminates the need for modifications or adapters.

2. **High-Quality Material** Gates is a well-known brand in automotive parts, known for durable materials and reliable performance. The fuel cap is likely made from sturdy plastic or metal, reducing the risk of cracking or warping over time.

3. **Seal Integrity** A properly functioning fuel cap ensures a tight seal, preventing fuel vapors from escaping and maintaining proper fuel pressure in the tank. This helps improve fuel efficiency and reduces emissions.

4. **Easy Installation** The design is straightforward, making it a relatively simple DIY replacement. Most owners can install it without specialized tools, though a slight tug may be needed to break the old seal.

5. **Prevents Fuel Loss and Contamination** A faulty or missing fuel cap can lead to fuel evaporation, moisture ingress, or debris entering the tank, which can damage the fuel system or reduce engine performance.

6. **OEM Replacement Option** While not an exact OEM part, it closely matches the original equipment design, providing a balance between aftermarket quality and fit.

1. **Potential Counterfeit Concerns** Like many aftermarket parts, there is a risk of purchasing a counterfeit Gates product, especially if buying from untrusted sellers. A genuine Gates part will have clear branding and packaging.

2. **Price Consideration** While not excessively expensive, it may be slightly more costly than a generic aftermarket fuel cap. However, the quality justifies the price for most owners.

3. **Limited Availability in Some Regions** Depending on where you purchase it, you may need to order online, which could involve shipping delays.

4. **No Additional Features** Unlike some premium aftermarket caps, this one does not include features like a built-in fuel gauge or pressure relief valve beyond standard functionality.

5. **Possible Stiffness or Wear** If the original cap was neglected for years, the new one may still require some effort to open or close, especially if the surrounding fuel tank area is corroded or stiff.

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The Gates SX-5838 fuel tank cap is a **reliable and practical choice** for the 1984 1988 Pontiac Fiero. Its direct fitment, durability, and seal integrity make it a superior option compared to generic or low-quality replacements. While there are minor drawbacks such as the risk of counterfeit products or slight installation resistance the benefits far outweigh the cons for most owners.

If you prioritize **fit, quality, and longevity**, this is the best aftermarket option available. For an even more OEM-like experience, you could also consider sourcing an **authentic Pontiac replacement part**, though these may be harder to find and slightly more expensive.

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- You want a **direct-fit, high-quality replacement** that matches your Fiero s original specifications.

- You prefer a **trusted brand** over cheaper, unbranded alternatives.

- You plan to **maintain or restore** your Fiero and want to avoid fuel system issues.

- You re on a **tight budget** and can find a similarly rated generic cap at a significantly lower price (though quality may suffer).

- You suspect **counterfeit products** in your purchase source always buy from reputable dealers or authorized sellers.

- Purchase from **official Gates distributors, Amazon, or trusted auto parts retailers** (e.g., RockAuto, Summit Racing).

- Inspect the packaging and part number to ensure authenticity.

- If the original cap is stuck, use **penetrating oil** or a **rubber mallet** to loosen it before removing the new cap.

For most Fiero owners, this is the **best balance of cost, quality, and performance** for a fuel tank cap replacement.

Details:

Gates Fuel Tank Cap for 1984 - 1988 Pontiac Fiero 2.5L 2.8L L4 V6 Gas Delivery hu: Status: In Stock.

part #: sx5838 prices

• $24.87-$70.73

specifications fueltanksysteme:

• for makes: Pontiac
• for years: 1984-1988
• brand: Gates
• mpn: Sx-5838
• type: Fuel Tank Cap
• placement on vehicle: Air Fuel Delivery Hardware Fasteners Fittings
• item width: 3.630
• item height: 3.000
• manufacturer warranty: Recommended Service Interval
• ipn: C211 46-36
• compatible model: Fiero
• compatible year: 1988 1987 1986 1985 1984
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

offer fueltanksysteme:

• started: April 19, 2026
• options: Ship-to-home
• sold: 0
• quantity: 10
• availability: In Stock

returns fueltanksysteme:

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

general fueltanksysteme:

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

payments fueltanksysteme:

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

shipping fueltanksysteme:

• service: Standard, Expedited
• transit: 4-7 Days
• type: Fixed
• class: Standard, Expedited
• cost: $0.00

seller fueltanksysteme:

• # reviews: 646993
• rating: 99.6%
• city: Indianapolis, Indiana

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