GATES SX-6598 Fuel Tank Gas Cap Sunburst 1.5L L4

( Brand: Gates ), ( Manufacturer Part Number: SX-6598 ), ( 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: C786 66-17 ), ( Compatible Model: Sunburst ), ( Compatible Year: 1988 1987 1986 1985 ), ( 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 Sunburst 1.5l L4 Gas Delivery Hw fits 1985–1988

The **Gates SX-6598 Fuel Tank Cap** is a meticulously engineered, high-performance replacement part designed specifically for the **1985 1988 Pontiac Sunbird** equipped with the **1.5L L4 gasoline-powered engine**, particularly those configured with a **hardware (HW) fuel system**. Crafted from durable, corrosion-resistant materials, this fuel cap is built to withstand the rigors of daily driving while ensuring a secure, leak-free seal that maintains optimal fuel system integrity. The cap features a **precision-machined rubber gasket**, engineered to provide an airtight fit that prevents fuel vapors from escaping and contaminants from entering the tank, thereby protecting both the fuel and the engine from degradation. Its **threaded metal base** is designed to match the exact specifications of the original equipment manufacturer (OEM), ensuring a snug, vibration-resistant connection that resists loosening over time, even on rough roads. Beyond its functional reliability, the Gates SX-6598 stands out for its **durability and longevity**, often outperforming generic aftermarket alternatives that may succumb to wear or fail to seal properly. Whether you're restoring a classic Sunbird to its original glory or maintaining a well-loved vehicle, this fuel cap delivers the performance and peace of mind that comes with knowing your fuel system is protected by a trusted, high-quality component.

**Pros and Cons of buying a Gates SX-6598 Fuel Tank Cap for a 1985-1988 Pontiac Sunbird 1.5L L4 Gasoline Engine**

1. **Compatibility and Fit:** Gates is a reputable manufacturer known for producing high-quality, OEM-replacement parts. The SX-6598 is specifically designed to fit the 1.5L L4 engine applications, including the 1985-1988 Pontiac Sunbird, ensuring a proper seal and secure attachment.

2. **Durability and Performance:** Gates caps are constructed with durable materials, including high-quality rubber gaskets and sturdy plastic or metal components, which help prevent fuel vapors from escaping and maintain proper fuel system pressure. This can improve fuel efficiency and reduce emissions.

3. **Easy Installation:** The cap is designed to be a straightforward drop-in replacement, requiring minimal tools and effort to install. Most users can replace it in under 30 minutes without specialized knowledge.

4. **Reliability:** Gates parts are known for longevity, reducing the likelihood of frequent replacements or failures. A properly functioning fuel cap ensures the fuel system operates smoothly, avoiding potential issues like fuel pump strain or check engine lights due to evaporative emissions (EVAP) system malfunctions.

5. **Availability:** Gates parts are widely available through automotive retailers, online marketplaces, and dealerships, making it easy to purchase and replace when needed.

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1. **Cost:** Aftermarket parts, even from reputable brands like Gates, can be slightly more expensive than generic or no-name alternatives. However, the price difference is often justified by the quality and reliability.

2. **Potential Counterfeit Products:** Purchasing from untrusted sellers (especially online) may result in counterfeit or low-quality replicas that do not fit properly or perform as expected. Always buy from authorized dealers or well-reviewed retailers to avoid this risk.

3. **Overkill for Minor Issues:** If the original cap was only slightly damaged or leaking, a generic or OEM replacement might suffice. In such cases, paying for a Gates cap could be unnecessary unless you prioritize long-term reliability.

4. **Installation Challenges:** While most installations are simple, some users may encounter difficulty if the fuel tank or surrounding area is corroded or if the original cap threads are stripped. In such cases, additional cleaning or lubrication may be required.

5. **Limited Customization:** The Gates SX-6598 is a standard replacement part and does not offer customization options (e.g., different colors or styles), which may be a consideration for those looking to personalize their vehicle.

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The Gates SX-6598 fuel tank cap is an excellent choice for replacing the fuel cap on a 1985-1988 Pontiac Sunbird with a 1.5L L4 engine. Its compatibility, durability, and ease of installation make it a reliable upgrade over generic alternatives. While it may cost slightly more upfront, the long-term benefits such as improved fuel system performance and reduced emissions often outweigh the drawbacks.

If your primary concern is a straightforward, high-quality replacement without unnecessary complications, the Gates SX-6598 is highly recommended. However, if you are on a tight budget and the original cap was only minimally damaged, a budget-friendly OEM or aftermarket alternative could also work. Always ensure you purchase from a trusted source to avoid counterfeit products.

**Final Recommendation:** Purchase the Gates SX-6598 fuel tank cap for your 1985-1988 Pontiac Sunbird. It is the best balance of quality, reliability, and compatibility for your vehicle s needs.

Details:

Gates Fuel Tank Cap for 1985 - 1988 Pontiac Sunburst 1.5L L4 Gas Delivery hw: Status: In Stock.

part #: sx6598 prices

• $22.44-$24.83

specifications fueltanksysteme:

• for makes: Pontiac
• for years: 1985-1988
• brand: Gates
• mpn: Sx-6598
• 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: C786 66-17
• compatible model: Sunburst
• compatible year: 1988 1987 1986 1985
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

offer fueltanksysteme:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 10
• started: May 30, 2026

seller fueltanksysteme:

• city: Indianapolis, Indiana
• rating: 99.7%
• # reviews: 663143

payments fueltanksysteme:

• wallet: Apple-pay
• credit card: Mastercard
• other

general fueltanksysteme:

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

returns fueltanksysteme:

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

shipping fueltanksysteme:

• cost: $0.00
• class: Standard, Expedited
• type: Fixed
• transit: 3-6 Days
• service: Standard, Expedited

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