GATES SX-6398 Fuel Tank Gas Cap Parisienne 5.7L V8

( Brand: Gates ), ( Manufacturer Part Number: SX-6398 ), ( 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: C482 29-42 ), ( Compatible Model: Parisienne ), ( Compatible Year: 1985 1984 1983 ), ( 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 Parisienne 5.7l V8 Gas Delivery Gd fits 1983–1985

The **Gates SX-6398 Fuel Tank Cap** is a meticulously engineered, high-performance replacement part designed specifically for the **1983 1985 Pontiac Parisienne** equipped with the **5.7L (345 cubic inch) V8 gasoline direct-injection (GD) engine**. This premium fuel cap is crafted to meet or exceed OEM specifications, ensuring a perfect fit and seamless integration with the vehicle s fuel system while delivering superior functionality and durability. Engineered from **high-grade, corrosion-resistant materials**, the cap is built to withstand the harshest environmental conditions, from extreme temperatures to prolonged exposure to fuel vapors, preventing degradation and maintaining a tight seal over time. Its **precision-machined threads and robust locking mechanism** guarantee a secure closure, minimizing fuel evaporation and reducing the risk of leaks that could compromise engine performance or trigger costly emissions-related issues. The cap features a **durable, easy-to-grip handle** with a textured surface for improved grip, making it simple to open and close even when wearing gloves, while its **smooth, aerodynamic design** ensures it fits snugly within the fuel filler neck, preventing debris from entering the tank. Beyond its practical benefits, the Gates SX-6398 is also a **stylish upgrade**, maintaining the classic aesthetic of the Parisienne while offering enhanced reliability. Whether you're restoring a vintage Parisienne or maintaining one in peak condition, this fuel cap is an essential component that combines **performance, longevity, and precision engineering** to keep your vehicle running smoothly and efficiently.

**Pros and Cons of buying a Gates SX-6398 Fuel Tank Cap for a 1983-1985 Pontiac Parisienne 5.7L V8 Gas GD**

1. **Compatibility and Fit:** Gates is known for producing high-quality, precisely engineered parts. The SX-6398 is specifically designed to fit the 1983-1985 Pontiac Parisienne with a 5.7L V8 engine, ensuring a proper seal and secure attachment. This reduces the risk of leaks or improper installation compared to generic or poorly fitted alternatives.

2. **Durability and Material Quality:** Gates uses high-grade materials, including sturdy plastic and reinforced seals, which are resistant to wear, cracking, and fuel vapor leakage over time. This extends the lifespan of the cap compared to cheaper, lower-quality options.

3. **Seal Integrity:** The cap features a reliable sealing mechanism, which helps maintain proper fuel vapor pressure in the tank. This is important for preventing fuel evaporation and ensuring the vehicle s emissions system functions correctly, which can be particularly beneficial for older cars that may not have modern fuel-injection tuning.

4. **Easy Installation:** The design of the Gates cap is straightforward, making it relatively easy to install without requiring specialized tools or expertise. This saves time and labor compared to more complex aftermarket parts.

5. **Brand Reputation:** Gates is a trusted name in automotive accessories, with a long history of producing reliable parts. Purchasing from a reputable brand reduces the likelihood of receiving a defective or counterfeit product.

6. **Cost-Effective Solution:** While not the absolute cheapest option, the Gates cap offers a balance between affordability and quality. It is often more economical in the long run than dealing with repeated failures from inferior caps.

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1. **Price:** Compared to generic or no-name fuel tank caps, the Gates part is more expensive. For budget-conscious buyers, this may be a deterrent, especially if the original cap is still functional or if a cheaper alternative appears to fit.

2. **Availability and Lead Times:** Depending on the retailer, the Gates cap may not always be in stock, leading to potential delays in receiving the part. Online marketplaces or specialty auto stores might require ordering in advance.

3. **Overkill for Minor Issues:** If the original cap is only slightly damaged or leaking, some buyers might opt for a cheaper replacement to save money. In such cases, the Gates cap may be perceived as unnecessary if the problem is minor and temporary.

4. **Potential for Misalignment:** While rare, improper installation could lead to misalignment or difficulty in securing the cap tightly. This risk exists with any aftermarket part, though Gates design minimizes it.

5. **Resale Value Impact:** If you plan to sell the vehicle in the future, some buyers may prefer original equipment manufacturer (OEM) parts for cosmetic or perceived value reasons. However, this is subjective and depends on the buyer s priorities.

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The Gates SX-6398 fuel tank cap is a strong choice for owners of a 1983-1985 Pontiac Parisienne with a 5.7L V8 engine. Its combination of compatibility, durability, and reliability makes it a practical investment for those seeking a long-term solution to fuel tank cap issues. While it may cost more upfront than generic alternatives, the reduced risk of leaks, improved emissions performance, and ease of installation justify the expense for most users.

If your primary concern is functionality and longevity, the Gates cap is highly recommended. However, if you are on a tight budget and the original cap is still serviceable, you might consider a cheaper option as a temporary fix though this is not ideal for long-term use.

**Purchase the Gates SX-6398 fuel tank cap.** It is the best balance of quality, fit, and performance for your vehicle. Ensure you follow the installation instructions carefully to avoid any issues. If you are unsure about compatibility, verify the part number against your vehicle s specifications before buying. For added peace of mind, consider purchasing from an authorized Gates dealer or a reputable online retailer with good return policies.

Details:

Gates Fuel Tank Cap for 1983 - 1985 Pontiac Parisienne 5.7L V8 Gas Delivery gd: Status: In Stock.

part #: sx6398 prices

• $15.26-$47.57

specifications fueltanksysteme:

• for makes: Pontiac
• for years: 1983-1985
• brand: Gates
• mpn: Sx-6398
• 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: C482 29-42
• compatible model: Parisienne
• compatible year: 1985 1984 1983
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

general fueltanksysteme:

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

offer fueltanksysteme:

• options: Ship-to-home
• availability: In Stock
• quantity: 10
• started: May 21, 2026
• sold: 0

seller fueltanksysteme:

• rating: 99.6%
• # reviews: 659676
• city: Indianapolis, Indiana

shipping fueltanksysteme:

• service: Standard, Expedited
• cost: $0.00
• transit: 2-7 Days
• type: Fixed
• class: Standard, Expedited

payments fueltanksysteme:

• wallet: Paypal
• other
• credit card: Discover

returns fueltanksysteme:

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

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