GATES SX-8389 Fuel Tank Gas Cap 6.2L V8

( Brand: Gates ), ( Manufacturer Part Number: SX-8389 ), ( 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: C577 68-31 ), ( Compatible Model: R10 Suburban ), ( Compatible Year: 1988 1987 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Fuel Tank Cap )

Review GATES Fuel Tank Cap Chevrolet 6.2l V8 Gas Hb fits SUBURBAN R10 1987–1988

The **Gates SX-8389 Fuel Tank Cap** is a precision-engineered replacement part designed specifically for the 1987 1988 Chevrolet R10 Suburban equipped with the robust 6.2L V8 gasoline engine, ensuring a seamless fit and optimal performance. Crafted from high-quality, durable materials, this fuel tank cap is built to withstand the demands of daily driving while maintaining a secure seal to prevent fuel vapor leaks and evaporation. The cap features a robust, threaded design that aligns perfectly with the vehicle s fuel filler neck, eliminating the risk of misalignment or improper installation. Its sturdy construction includes a reliable locking mechanism, ensuring the cap stays securely in place even during aggressive driving or rough terrain, which is particularly beneficial for those who frequently navigate off-road or uneven surfaces. Beyond its functional integrity, the Gates SX-8389 is designed with compatibility in mind, adhering to the exact specifications of the original equipment manufacturer (OEM) to guarantee a perfect fit without compromising the vehicle s fuel system efficiency. Whether you're restoring a classic Suburban or performing routine maintenance, this fuel tank cap delivers the reliability and performance you expect from Gates, a trusted name in automotive components. Its straightforward installation and long-lasting durability make it an essential upgrade for any vehicle owner seeking to maintain the integrity of their fuel system.

### Pros and Cons of buying a Gates SX-8389 Fuel Tank Cap for a 1987-1988 Chevrolet R10 Suburban (6.2L V8 Gas HB)

1. **OEM Fitment and Compatibility** The Gates SX-8389 is designed as an exact replacement for the original fuel tank cap on your 1987-1988 Chevrolet R10 Suburban with a 6.2L V8 engine. This ensures a proper seal, preventing fuel leaks and maintaining proper fuel pressure.

2. **Durable Construction** Gates is a reputable manufacturer known for producing high-quality aftermarket parts. The SX-8389 is likely made from sturdy materials, such as metal or reinforced plastic, which can withstand wear and tear better than some generic or low-quality alternatives.

3. **Seal Integrity** A well-fitted fuel cap ensures that the fuel system remains pressurized, which is crucial for proper fuel delivery and preventing vapor leaks. This can also help maintain optimal fuel economy and engine performance.

4. **Easy Installation** Since it is an exact replacement, the installation process should be straightforward, requiring only basic tools. No modifications to the fuel tank or surrounding components should be necessary.

5. **Reliability** Gates parts are generally known for longevity, reducing the likelihood of premature failure compared to cheaper, no-name brands.

6. **Compatibility with Emissions Systems** The fuel cap plays a role in the vehicle s evaporative emissions control system (EVAP). A properly functioning cap helps meet emissions standards, which is important for older vehicles that may still require compliance.

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1. **Cost** Compared to generic or store-brand fuel caps, the Gates SX-8389 may be more expensive. While it offers better quality, the price could be a consideration if you're on a tight budget.

2. **Potential Overkill for Minor Issues** If your original cap is still functional but slightly worn or loose, replacing it with a Gates cap might be unnecessary unless you're experiencing specific problems like fuel leaks, poor fuel economy, or check engine lights related to the EVAP system.

3. **Availability and Lead Time** Depending on where you purchase it, the Gates part might not be immediately available in stock. Some retailers may require backorders, which could delay repairs.

4. **No Additional Features** Unlike some modern fuel caps, this part does not include advanced features such as built-in pressure gauges or smart technology. It is a straightforward replacement with no extra functionalities.

5. **Installation Requires Care** While the installation is simple, improper handling (e.g., stripping the threads or damaging the seal) could lead to leaks or difficulty reattaching the cap. This risk applies to any fuel cap replacement, not just the Gates model.

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The Gates SX-8389 fuel tank cap is a reliable and high-quality replacement part for your 1987-1988 Chevrolet R10 Suburban. Its primary advantages lie in its OEM fitment, durability, and compatibility with your vehicle s emissions system. These benefits make it a strong choice if you're experiencing issues with your current cap, such as leaks, poor sealing, or EVAP-related problems.

However, if your original cap is still functioning adequately and you're not facing specific concerns, replacing it may not be urgent. In that case, you could consider a more budget-friendly option as a temporary fix. That said, investing in the Gates part ensures long-term reliability and peace of mind, especially if you plan to keep the vehicle for an extended period.

- Your current fuel cap is damaged, leaking, or causing EVAP system issues.

- You want a high-quality, long-lasting replacement that matches the original equipment.

- You value reliability and are willing to pay a slightly higher price for a reputable brand.

- Your original cap is still functional and not causing any noticeable problems.

- You're on a tight budget and can find a compatible, lower-cost alternative that meets your needs.

- You re unsure whether the issue is actually related to the fuel cap (e.g., check engine lights could stem from other issues like a faulty EVAP canister or sensor).

For most owners dealing with a faulty fuel cap, the Gates SX-8389 is a worthwhile investment due to its proven performance and compatibility. If you proceed with the purchase, ensure you follow installation guidelines carefully to avoid any complications.

Details:

Gates Fuel Tank Cap for 1987 - 1988 Chevrolet R10 Suburban 6.2L V8 Gas hb: Status: In Stock.

part #: sx8389 prices

• $7.98-$40.88

specifications fueltanksysteme:

• for models: R10, Suburban
• for makes: Chevrolet
• for years: 1987-1988
• brand: Gates
• mpn: Sx-8389
• 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: C577 68-31
• compatible model: R10 Suburban
• compatible year: 1988 1987
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

payments fueltanksysteme:

• credit card: Diners-club
• wallet: Paypal
• other

seller fueltanksysteme:

• rating: 99.6%
• # reviews: 655347
• city: Indianapolis, Indiana

shipping fueltanksysteme:

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

offer fueltanksysteme:

• sold: 0
• availability: In Stock
• started: May 10, 2026
• quantity: 4
• options: Ship-to-home

returns fueltanksysteme:

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

general fueltanksysteme:

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

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