GATES SX-5751 Fuel Tank Cap 5.7L 6.4L 6.6L 6.9L 7.0L

( Brand: Gates ), ( Manufacturer Part Number: SX-5751 ), ( 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: C620 60-65 ), ( Compatible Model: Catalina ), ( Compatible Year: 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 ), ( 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 5.7l 6.4l 6.6l 6.9l 7.0l fits CATALINA TJ 1965–1974

The **Gates SX-5751 Fuel Tank Cap** is a meticulously crafted, high-performance replacement part designed specifically for the iconic 1965 through 1974 Pontiac Catalina models equipped with the legendary **6.4L (389 ci), 6.6L (400 ci), 6.9L (421 ci), 7.0L (455 ci), and 5.7L (348 ci) V8 engines** collectively known as the **TJ (Tri-Power) and Tri-Power Plus** configurations. This cap is not merely a functional component but a precision-engineered solution tailored to restore both the aesthetic integrity and operational reliability of your classic Pontiac s fuel system. Crafted from durable, corrosion-resistant materials, the Gates SX-5751 features a robust, threaded design that ensures a secure, leak-proof seal, preventing vapor loss and maintaining optimal fuel pressure within the tank. The cap s sleek, vintage-inspired styling complete with the distinctive **Gates branding and a polished metal finish** blends seamlessly with the original equipment, preserving the muscle car s timeless appeal while delivering modern performance enhancements. Whether you re restoring a show-quality Catalina or fine-tuning a high-performance street machine, this cap is engineered to meet the demands of both enthusiasts and mechanics who demand nothing less than perfection. Its compatibility with the **TJ engine family** renowned for their aggressive power delivery and legendary reliability makes it an essential upgrade for anyone seeking to honor the legacy of these legendary Pontiacs while ensuring their fuel system operates with the same precision and durability as the engines they power.

### **Pros and Cons of Buying a Gates SX-5751 Fuel Tank Cap for a 1965 1974 Pontiac Catalina (5.7L 7.0L TJ V8)**

1. **OEM Fitment and Compatibility** The Gates SX-5751 is designed specifically for Pontiac Catalina models from 1965 to 1974 with the TJ-series V8 engines (5.7L 7.0L). This ensures a proper seal and alignment with the fuel tank, reducing the risk of leaks or improper installation.

2. **Durable Construction** Gates is a well-known manufacturer of high-quality automotive parts, including fuel caps. The SX-5751 is made from sturdy materials, such as metal or reinforced plastic, which helps prevent cracking or warping over time, especially in older vehicles where fuel tanks may be more prone to degradation.

3. **Proper Venting and Pressure Regulation** A correctly functioning fuel cap maintains proper fuel tank pressure, preventing vapor buildup that could lead to fuel system issues or even potential safety hazards. The Gates cap is engineered to handle the pressure dynamics of these older engines.

4. **Prevents Fuel Evaporation and Theft Deterrence** Unlike cheap or aftermarket caps that may not seal tightly, the Gates cap helps minimize fuel evaporation and reduces the risk of fuel theft, which can be a concern in older vehicles.

5. **Easy Installation** The design is straightforward, and since it is an OEM replacement, it should fit without extensive modifications. Most mechanics and DIYers can install it without difficulty.

6. **Long-Term Reliability** Gates parts are known for lasting longer than generic or low-quality replacements, which is beneficial for classic cars where longevity and preservation are important.

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1. **Cost Compared to Generic Alternatives** The Gates SX-5751 is more expensive than basic aftermarket or no-name fuel caps. For some owners, this may be a significant investment, especially if they are on a tight budget for restoration or maintenance.

2. **Potential Overkill for Minor Use** If the vehicle is rarely driven or stored in a climate-controlled environment, the extra durability of the Gates cap may not be necessary. A lower-cost, but still functional, replacement might suffice.

3. **Availability and Lead Times** While Gates is a reputable brand, some specialty parts distributors may have limited stock or longer lead times compared to mass-produced generic caps. This could delay repairs if the part is urgently needed.

4. **Potential for Over-Tightening** Some users may accidentally overtighten the cap, especially if they are not familiar with the correct torque specification. Over-tightening can strip the threads or damage the cap s sealing mechanism, voiding its purpose.

5. **No Additional Features (Beyond Basics)** Unlike some modern fuel caps, the Gates SX-5751 does not include advanced features such as built-in fuel level indicators or electronic locking mechanisms. If these are desired, a more specialized (and likely more expensive) cap would be needed.

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The Gates SX-5751 fuel tank cap is an excellent choice for owners of a 1965 1974 Pontiac Catalina with a TJ V8 engine. Its OEM fitment, durability, and reliability make it a superior long-term solution compared to cheaper alternatives. While the upfront cost is higher, the benefits such as preventing leaks, fuel loss, and potential fuel system issues outweigh the drawbacks for most serious owners.

For those on a tight budget or with minimal driving needs, a high-quality generic cap (from brands like AC Delco or Fram) could be a reasonable compromise. However, if the goal is to maintain the vehicle s integrity and performance, the Gates cap is the recommended option.

**Buy the Gates SX-5751 fuel tank cap.** It is the best balance of quality, fitment, and longevity for your Pontiac Catalina. If cost is a major concern, prioritize it over other non-critical upgrades, as a failing fuel cap can lead to more expensive problems down the line. Always ensure proper installation and avoid overtightening to maximize its lifespan.

Details:

Gates Fuel Tank Cap for 1965-1974 Pontiac Catalina 5.7L 6.4L 6.6L 6.9L 7.0L Tj: Status: In Stock.

part #: sx5751 prices

• $25.63-$140.83

specifications fueltanksysteme:

• for models: Tj, Catalina
• for makes: Pontiac
• for years: 1965-1974
• brand: Gates
• mpn: Sx-5751
• 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: C620 60-65
• compatible model: Catalina
• compatible year: 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

shipping fueltanksysteme:

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

general fueltanksysteme:

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

payments fueltanksysteme:

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

offer fueltanksysteme:

• availability: In Stock
• quantity: 10
• options: Ship-to-home
• started: May 27, 2026
• sold: 0

returns fueltanksysteme:

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

seller fueltanksysteme:

• # reviews: 661784
• rating: 99.7%
• city: Indianapolis, Indiana

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