GATES SX-9025 Fuel Tank Cap 3.7L 4.1L 4.4L 4.7L 5.2L 5.5L 5.7L

( Brand: Gates ), ( Manufacturer Part Number: SX-9025 ), ( 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: C400 64-19 ), ( Compatible Model: 100 ), ( Compatible Year: 1959 1958 1957 1956 1955 1954 1953 1952 1951 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Fuel Tank Cap )

Review GATES Fuel Tank Cap Gmc 100 3.7l 4.1l 4.4l 4.7l 5.2l 5.5l 5.7l Oe fits 1951–1959

The **Gates SX-9025 Fuel Tank Cap** is a meticulously engineered, high-performance replacement part designed specifically for classic GMC vehicles spanning the model years 1951 through 1959, covering a broad range of iconic inline-six and V8 engines, including the legendary 3.7L (220ci), 4.1L (250ci), 4.4L (270ci), 4.7L (290ci), 5.2L (327ci), 5.5L (340ci), and 5.7L (350ci) powerplants. Crafted from durable, corrosion-resistant materials, this fuel tank cap is built to withstand the demands of both daily driving and enthusiast restorations, ensuring a secure and reliable seal that prevents fuel vapors from escaping while maintaining optimal fuel system integrity. The cap features a robust, threaded design that matches the original equipment specifications, guaranteeing a snug, leak-free fit on the vehicle s fuel filler neck. Its sleek, vintage-inspired styling complements the classic aesthetic of these mid-century GMCs, blending functionality with authenticity. Whether restoring a showroom-worthy classic or maintaining a daily driver, the Gates SX-9025 delivers the precision and durability needed to keep your engine running smoothly while preserving the original character of your vehicle. Built to last, this cap is an essential component for any GMC owner seeking both performance and heritage.

### Pros and Cons of buying a Gates SX-9025 Fuel Tank Cap for 1951 1959 GMC Trucks (3.7L 5.7L Engines)

1. **Direct Fitment** The Gates SX-9025 is specifically designed for 1951 1959 GMC trucks with inline six-cylinder engines ranging from 3.7L to 5.7L. This ensures compatibility without the need for extensive modifications.

2. **High-Quality Material** Gates is a well-known brand in automotive aftermarket parts, known for using durable materials like metal and rubber that resist wear, corrosion, and fuel vapor leakage over time.

3. **Sealed Design** The cap features a proper sealing mechanism to prevent fuel fumes from escaping, reducing evaporation and potential environmental hazards. This also helps maintain proper fuel pressure in the tank.

4. **Easy Installation** The design is straightforward, requiring minimal tools and effort to replace the stock cap. No special expertise is needed for installation.

5. **Prevents Contamination** A secure, well-sealed cap helps keep debris, moisture, and contaminants out of the fuel tank, which can extend the life of the fuel system and prevent clogs or corrosion.

6. **Compatibility with Modern Fuel Systems** Unlike some older caps that may not seal properly with modern fuel systems, the Gates SX-9025 is designed to work with contemporary fuel tank pressure requirements.

7. **Affordable Upgrade** Compared to some high-end or custom-fit caps, the Gates SX-9025 offers a cost-effective solution without sacrificing quality.

1. **Limited Availability** Depending on the region, this part may not be as widely stocked as more common OEM or generic replacements. You may need to order it online or from a specialty auto parts supplier.

2. **Potential Overkill for Minor Use** If the original cap was still functional (just loose or worn), replacing it with a Gates cap may be unnecessary unless you re experiencing fuel fumes, leaks, or difficulty opening/closing the cap.

3. **Price Sensitivity** While not excessively expensive, it is a premium aftermarket part. Budget-conscious buyers might opt for a cheaper generic cap, though this could compromise long-term reliability.

4. **No Additional Features** Unlike some modern caps with built-in fuel level indicators or locking mechanisms, the Gates SX-9025 is a basic replacement part with no extra functionalities.

5. **Possible Over-Tightening Risk** If not installed correctly, the cap could be over-tightened, leading to damage to the tank s sealing surface or difficulty removing it in the future.

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### **Conclusion**

The Gates SX-9025 fuel tank cap is a solid choice for 1951 1959 GMC trucks with inline six-cylinder engines. It offers a reliable, high-quality replacement that addresses common issues like fuel fumes, leaks, and contamination. The direct fitment and ease of installation make it a practical upgrade for anyone looking to maintain or restore their vehicle s fuel system properly.

However, if the original cap is still functional or if budget is a major concern, a generic replacement might suffice. That said, for long-term reliability and peace of mind, the Gates cap is a worthwhile investment, especially for classic trucks where fuel system integrity is critical.

### **Recommendation**

- Your current cap is damaged, leaking, or difficult to open/close.

- You want a durable, high-quality replacement that prevents fuel fumes and contamination.

- You value a direct-fit, easy-to-install solution from a trusted brand.

- The original cap is still in good condition and not causing any issues.

- You re on a tight budget and can find a similarly priced generic cap that fits.

- You re unsure whether the problem lies with the cap itself (e.g., the tank s sealing surface may be damaged, requiring a different solution).

For most owners dealing with an unreliable or worn-out fuel cap, the Gates SX-9025 is a recommended upgrade. Always ensure proper installation by following the manufacturer s guidelines or consulting a professional if needed.

Details:

part #: sx9025 prices

• $24.51-$35.33

specifications fueltanksysteme:

• for makes: Gmc
• for years: 1951-1959
• brand: Gates
• mpn: Sx-9025
• 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: C400 64-19
• compatible model: 100
• compatible year: 1959 1958 1957 1956 1955 1954 1953 1952 1951
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

shipping fueltanksysteme:

• type: Fixed
• class: Standard, Expedited
• transit: 2-5 Days
• cost: $0.00
• service: Standard, Expedited

seller fueltanksysteme:

• # reviews: 656642
• rating: 99.6%
• city: Indianapolis, Indiana

payments fueltanksysteme:

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

returns fueltanksysteme:

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

general fueltanksysteme:

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

offer fueltanksysteme:

• quantity: 6
• started: May 14, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home

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