GATES SX-5846 Fuel Tank Cap Yb 2.8L 3.9L 4.9L 5.0L

( Brand: Gates ), ( Manufacturer Part Number: SX-5846 ), ( 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: C586 35-57 ), ( Compatible Model: E-100 Econoline ), ( Compatible Year: 1975 1974 1973 1972 1971 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Fuel Tank Cap )

Review GATES Fuel Tank Cap Ford Econoline 2.8l 3.9l 4.9l 5.0l Yb fits E-100 1971–1975

The **Gates SX-5846 Fuel Tank Cap** is a meticulously engineered replacement part designed specifically for the classic **1971 1975 Ford E-100** with **2.8L, 3.9L, 4.9L, or 5.0L Y-Block engines**, ensuring a precise fit and reliable performance for these robust workhorse trucks. Crafted from high-quality **durable metal**, this fuel cap is built to withstand the rigors of daily use, from rough terrain to heavy-duty hauling, while maintaining a secure seal to prevent fuel evaporation and vapor leaks. The cap features a **smooth, contoured design** that aligns perfectly with the original Ford E-100 s fuel filler neck, eliminating gaps that could allow dirt, moisture, or debris to enter the tank. Its **threaded base** is engineered for a tight, leak-proof connection, ensuring that fuel remains contained while also reducing the risk of vapor lock especially critical for older vehicles prone to overheating under demanding loads. Beyond its functional benefits, the Gates SX-5846 also delivers a **clean, factory-like appearance**, with a polished finish that complements the truck s classic aesthetic without compromising on durability. Whether restoring an original E-100 or maintaining a well-loved vintage rig, this fuel cap serves as an essential upgrade, combining **reliability, precision, and long-term performance** to keep your truck running smoothly for years to come.

### Pros and Cons of buying a Gates SX-5846 Fuel Tank Cap for a 1971 1975 Ford E-100 (2.8L 5.0L YB Engine)

1. **Direct Fitment** The Gates SX-5846 is specifically designed for the 1971 1975 Ford E-100 with YB engines (2.8L 5.0L), ensuring compatibility without modification.

2. **Seal Quality** Gates is a reputable brand known for high-quality rubber seals that prevent fuel vapors from escaping, reducing evaporation and maintaining fuel efficiency.

3. **Durability** The cap is built to withstand regular use, including exposure to weather and minor impacts, reducing the risk of leaks or damage over time.

4. **Easy Installation** Designed for straightforward replacement, requiring only basic tools and minimal effort to install correctly.

5. **Prevents Contamination** A properly sealed cap keeps moisture, dirt, and debris out of the fuel tank, protecting fuel quality and engine performance.

6. **OEM Replacement Option** While not an exact OEM part, it closely matches the original design, offering a reliable alternative if the OEM cap is unavailable or damaged.

7. **Cost-Effective** Generally more affordable than some aftermarket alternatives while still providing reliable performance.

1. **Potential Misalignment Risk** If not installed correctly, the cap may not seat properly, leading to fuel leaks or vapor loss. Careful alignment is required.

2. **Thread Wear Concerns** If the fuel tank threads are corroded or damaged, the cap may not fit securely, necessitating thread repair or replacement.

3. **Limited Availability** While widely available for Ford trucks, stock may be limited in some regions, requiring online purchases or special orders.

4. **No Additional Features** Unlike some modern caps, this is a basic fuel cap without integrated fuel level sensors or advanced sealing mechanisms.

5. **Possible Counterfeit Issues** As with any aftermarket part, there is a risk of purchasing a low-quality or counterfeit version, so buying from a trusted seller is essential.

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### **Conclusion**

The Gates SX-5846 fuel tank cap is a solid choice for restoring or maintaining fuel system integrity in a 1971 1975 Ford E-100. Its direct fitment, durability, and seal quality make it a practical replacement for a worn or missing OEM cap. However, proper installation is critical to avoid leaks, and ensuring the fuel tank threads are in good condition will maximize the cap s effectiveness.

For most owners, the benefits outweigh the drawbacks, especially if the cap is purchased from a reputable supplier. If budget allows, verifying the cap s authenticity and checking for any additional sealing aids (like thread lubricant) can further enhance reliability.

### **Recommendation**

Purchase the Gates SX-5846 from a trusted auto parts retailer or online store with a return policy. Before installation, inspect the fuel tank threads for corrosion or damage clean or repair them if necessary. Follow the manufacturer s installation instructions carefully to ensure a proper seal. If the cap is part of a larger fuel system upgrade (e.g., replacing a leaking tank or fuel lines), address those issues simultaneously for long-term reliability. For most DIYers, this cap provides a cost-effective, high-quality solution.

Details:

Gates Fuel Tank Cap for 1971-1975 Ford E-100 Econoline 2.8L 3.9L 4.9L 5.0L yb: Status: In Stock.

part #: sx5846 prices

• $26.23-$33.64

specifications fueltanksysteme:

• for models: E-100
• for makes: Ford
• for years: 1971-1975
• brand: Gates
• mpn: Sx-5846
• 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: C586 35-57
• compatible model: E-100 Econoline
• compatible year: 1975 1974 1973 1972 1971
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

payments fueltanksysteme:

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

offer fueltanksysteme:

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

returns fueltanksysteme:

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

shipping fueltanksysteme:

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

general fueltanksysteme:

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

seller fueltanksysteme:

• city: Indianapolis, Indiana
• rating: 99.5%
• # reviews: 620039

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