GATES SX-0693 Fuel Tank Gas Cap Uf 6.4L 6.7L 7.0L V8

( Brand: Gates ), ( Manufacturer Part Number: SX-0693 ), ( 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: C799 60-63 ), ( Compatible Year: 1970 1969 1968 1967 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Fuel Tank Cap )

Review GATES Fuel Tank Cap Mercury 6.4l 6.7l 7.0l V8 Gas Uf fits MARQUIS 1967–1970

The **Gates SX-0693 Fuel Tank Cap** is a meticulously engineered, high-performance replacement part designed specifically for the iconic 1967 through 1970 Mercury Marquis models equipped with the legendary 6.4L, 6.7L, or 7.0L V8 engines. Crafted from durable, corrosion-resistant materials, this fuel tank cap is built to withstand the demands of both daily driving and spirited performance applications, ensuring a secure and reliable seal while maintaining fuel integrity. The cap features a robust, threaded design that matches the original equipment specifications, guaranteeing a perfect fit without the need for modifications. Its smooth, aerodynamic shape not only enhances the classic aesthetic of the Marquis but also reduces drag, contributing to improved fuel efficiency and overall driving dynamics. Inside, the cap incorporates a precision-engineered venting system that regulates pressure within the fuel tank, preventing vapor lock and fuel starvation critical factors for maintaining consistent engine performance, especially under high-stress conditions. The cap s sturdy, one-piece construction eliminates the risk of leaks or misalignment, while its matte black finish blends seamlessly with the vehicle s exterior, preserving its timeless appeal. Whether restoring a vintage Marquis to its original glory or upgrading a high-performance build, the Gates SX-0693 is an essential component that combines functionality with heritage, ensuring both reliability and authenticity for enthusiasts who demand nothing less than perfection.

Buying the Gates SX-0693 fuel tank cap for a 1967 1970 Mercury Marquis with a 6.4L, 6.7L, or 7.0L V8 gas engine involves weighing several factors to determine if it s the right choice for your vehicle.

### **Pros of the Gates SX-0693 Fuel Tank Cap**

1. **OEM Replacement Quality** Gates is a well-respected manufacturer that produces parts designed to match or exceed original equipment standards. The SX-0693 is specifically engineered to fit Mercury Marquis models from that era, ensuring a proper seal and functionality.

2. **Durability and Reliability** The cap is constructed from high-quality materials, including a sturdy metal body and a reliable gasket, which helps prevent fuel leaks and vapor loss over time. This can extend the life of your fuel system and reduce the risk of evaporation-related issues.

3. **Proper Fitment** Since this cap is designed for your specific vehicle, it should align correctly with the fuel tank s opening, reducing the chance of misalignment or improper sealing that could lead to fuel spills or engine performance problems.

4. **Compatibility with Vapor Recovery Systems** Many modern fuel systems rely on proper venting to maintain pressure. A correctly functioning cap ensures that the fuel tank s vapor recovery system works as intended, which is crucial for emissions compliance and engine efficiency.

5. **Easy Installation** Gates parts are generally straightforward to install, requiring only basic tools. The design is simple, and the cap should screw on securely without excessive force, reducing the risk of stripping the threads.

6. **Long-Term Cost Savings** A high-quality cap like this one can prevent more expensive issues down the line, such as fuel leaks, clogged vents, or even potential engine damage from improper fuel system pressure.

7. **Availability and Support** Gates is a widely available brand, meaning you can easily find replacements if needed, and their parts are backed by customer service and warranties.

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### **Cons of the Gates SX-0693 Fuel Tank Cap**

1. **Potential Overkill for Minor Issues** If your original cap was only slightly damaged (e.g., a cracked plastic housing but an intact metal body), replacing the entire assembly with a new Gates cap might be more than necessary. However, since fuel caps are relatively inexpensive, this is rarely a significant drawback.

2. **Price Compared to Aftermarket Alternatives** While Gates is a premium brand, some aftermarket fuel caps may be slightly cheaper. However, these alternatives might not offer the same level of durability or fitment precision, potentially leading to future problems.

3. **Thread Stripping Risk (If Original Threads Are Damaged)** If the threads on your fuel tank are stripped or corroded, a new cap alone won t fix the issue. You may need to replace the fuel tank or use a thread repair kit, which could add to the cost.

4. **Plastic Components May Wear Over Time** While the metal body is durable, the plastic housing or gasket could degrade with age, especially if exposed to extreme temperatures or fuel additives. However, this is true of most fuel caps and not unique to Gates.

5. **Limited Customization** If you re looking for a cap with additional features (e.g., a built-in fuel gauge or decorative options), the Gates SX-0693 is a standard replacement and won t offer those extras.

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### **Conclusion**

The Gates SX-0693 fuel tank cap is an excellent choice for a 1967 1970 Mercury Marquis with a 6.4L, 6.7L, or 7.0L V8 engine. Its OEM-level quality, durability, and proper fitment make it a reliable upgrade that will prevent fuel system issues and ensure optimal engine performance. While there are minor drawbacks such as the potential for over-replacement if the original cap was only slightly damaged the benefits far outweigh the costs.

If your current cap is leaking, cracked, or not sealing properly, replacing it with the Gates SX-0693 is a straightforward and cost-effective solution that will pay dividends in the long run. It s a part that doesn t require frequent replacement, so investing in a high-quality option now will save you headaches later.

### **Recommendation**

**Buy the Gates SX-0693 fuel tank cap.** It is the best available replacement for your Mercury Marquis, offering reliability, proper fitment, and peace of mind. Pair this purchase with a thorough inspection of the fuel tank s threads and gasket to ensure everything seals correctly. If you notice any other issues (e.g., fuel line leaks or a damaged tank), address those simultaneously to maintain your vehicle s fuel system integrity.

Details:

Gates Fuel Tank Cap for 1967-1970 Mercury Marquis 6.4L 6.7L 7.0L V8 Gas uf: Status: In Stock.

part #: sx0693 prices

• $26.28-$46.40

specifications fueltanksysteme:

• for models: Marquis
• for makes: Mercury
• for years: 1967-1970
• brand: Gates
• mpn: Sx-0693
• 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: C799 60-63
• compatible year: 1970 1969 1968 1967
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

shipping fueltanksysteme:

• transit: 3-7 Days
• service: Standard, Expedited
• class: Standard, Expedited
• cost: $0.00
• type: Fixed

payments fueltanksysteme:

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

general fueltanksysteme:

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

offer fueltanksysteme:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 10
• started: April 6, 2026

seller fueltanksysteme:

• rating: 99.6%
• # reviews: 641925
• city: Indianapolis, Indiana

returns fueltanksysteme:

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

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