GATES SX-5766 Fuel Tank Cap 4.1L 4.8L 5.0L 5.7L 6.2L

( Brand: Gates ), ( Manufacturer Part Number: SX-5766 ), ( Type: Fuel Tank Cap ), ( Placement On Vehicle: Air Fuel Delivery Hardware Fasteners Fittings ), ( Item Height: 3.000 ), ( Item Width: 3.630 ), ( Manufacturer Warranty: Recommended Service Interval ), ( Ipn: C731 62-22 ), ( Compatible Year: 1986 1985 1984 1983 1982 1981 1980 1979 ), ( 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 4.1l 4.8l 5.0l 5.7l 6.2l fits C30 JU 1979–1986

The **Gates SX-5766 Fuel Tank Cap** is a meticulously engineered, high-performance replacement part designed specifically for the iconic 1979 through 1986 Chevrolet C30 pickup trucks equipped with a range of powerful V8 engines, including the robust 4.1L V6, the versatile 4.8L V8, and the legendary 5.0L, 5.7L, and 6.2L small-block V8s. Crafted with precision and built to exacting standards, this fuel tank cap is engineered to ensure a secure, leak-proof seal while maintaining optimal fuel vapor control, making it an essential upgrade for both performance enthusiasts and everyday drivers seeking reliability. The cap features a robust, durable construction with a sturdy metal body and a high-quality rubber gasket, ensuring a tight fit that prevents fuel vapors from escaping while also blocking contaminants from entering the fuel system. Its ergonomic design allows for easy installation and removal, even in tight spaces, and the clear, polycarbonate window provides a clear view of the fuel level, eliminating guesswork when checking your fuel reserves. Beyond its functional benefits, the Gates SX-5766 stands out for its compatibility with the classic C30 s aggressive styling, offering a sleek, modern aesthetic that complements the truck s rugged heritage. Whether you re restoring a vintage C30 to its former glory or maintaining a well-loved daily driver, this fuel tank cap delivers the perfect blend of performance, durability, and timeless design, ensuring your truck operates at its best while preserving its classic appeal.

### **Pros and Cons of buying a Gates SX-5766 Fuel Tank Cap for 1979 1986 Chevrolet C30 (4.1L 6.2L)**

1. **OEM Fitment and Compatibility** The Gates SX-5766 is designed as an exact replacement for the original fuel cap on your 1979 1986 Chevrolet C30, ensuring a proper seal and preventing fuel leaks or vapor loss.

2. **Durable Construction** Gates is a well-known brand in automotive parts, known for high-quality materials, including sturdy plastic and reliable sealing mechanisms.

3. **Prevents Fuel Evaporation** A properly sealed fuel cap reduces fuel vapor loss, which can improve fuel economy and prevent potential vapor lock issues, especially in hot climates.

4. **Prevents Contamination** A secure cap keeps debris, moisture, and pests out of the fuel tank, protecting the fuel system from corrosion and clogging.

5. **Easy Installation** The design is straightforward, requiring no special tools, and can be installed in minutes without modifications.

6. **Cost-Effective Solution** Compared to full fuel tank replacements or extensive repairs caused by a failing cap, this is a low-cost preventive measure.

7. **Available for Multiple Engines** The Gates SX-5766 fits a wide range of engines (4.1L 6.2L) in your C30, making it a versatile upgrade.

1. **Potential for Counterfeit Products** Some aftermarket parts, including Gates products, may be counterfeit. Buying from a reputable dealer or directly from Gates ensures authenticity.

2. **Styling Differences** While functional, the Gates cap may not match the exact appearance of the original OEM cap, though this is rarely a concern for most owners.

3. **Wear Over Time** Like any plastic part, the cap may degrade with age, especially if exposed to UV light or extreme temperatures. Replacement may still be necessary after several years.

4. **No Additional Features** Unlike some modern fuel caps, this does not include advanced sealing technologies (e.g., EVAP system integration, though your C30 s system is basic).

5. **Limited Availability** If purchasing from a third-party seller, stock may be inconsistent, requiring patience or alternative sourcing.

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### **Conclusion**

The **Gates SX-5766 fuel tank cap** is a **reliable, cost-effective, and easy-to-install** solution for maintaining your 1979 1986 Chevrolet C30 s fuel system. It addresses common issues like fuel evaporation, contamination, and leaks while fitting seamlessly across multiple engine sizes. The brand s reputation for quality and durability makes it a **strong recommendation** for owners looking to prevent long-term fuel system problems.

**If you re experiencing fuel loss, a loose cap, or simply want to upgrade for better sealing, this is a straightforward and worthwhile purchase.** Just ensure you buy from a trusted source to avoid counterfeit parts.

**Final Recommendation:** **Buy the Gates SX-5766** it s a simple, effective fix that pays for itself in improved fuel efficiency and system longevity.

Details:

Gates Fuel Tank Cap for 1979 1986 Chevrolet C30 4.1L 4.8L 5.0L 5.7L 6.2L Ju: Status: In Stock.

part #: sx5766 prices

• $22.53-$50.72

specifications fueltanksysteme:

• for models: C30, Ju
• for makes: Chevrolet
• for years: 1979-1986
• brand: Gates
• mpn: Sx-5766
• type: Fuel Tank Cap
• placement on vehicle: Air Fuel Delivery Hardware Fasteners Fittings
• item height: 3.000
• item width: 3.630
• manufacturer warranty: Recommended Service Interval
• ipn: C731 62-22
• compatible year: 1986 1985 1984 1983 1982 1981 1980 1979
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

shipping fueltanksysteme:

• service: Standard, Expedited
• type: Fixed
• class: Standard, Expedited
• transit: 4-6 Days
• cost: $0.00

returns fueltanksysteme:

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

offer fueltanksysteme:

• quantity: 10
• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: February 13, 2026

seller fueltanksysteme:

• # reviews: 621902
• city: Indianapolis, Indiana
• rating: 99.5%

payments fueltanksysteme:

• other
• wallet: Paypal
• credit card: Discover

general fueltanksysteme:

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

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