GATES SX-2176 Fuel Tank Gas Cap 3.8L 5.1L 5.2L L6 V8

( Brand: Gates ), ( Manufacturer Part Number: SX-2176 ), ( 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: C653 49-40 ), ( Compatible Model: D300 Pickup ), ( Compatible Year: 1959 1958 1957 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Fuel Tank Cap )

Review GATES Fuel Tank Cap Dodge Pickup 3.8l 5.1l 5.2l L6 V8 Gas Lr fits D300 1957–1959

The **Gates SX-2176 Fuel Tank Cap** is a meticulously engineered, high-performance replacement part designed specifically for the iconic 1957 1959 Dodge D300 series, including the legendary 3.8L, 5.1L, and 5.2L inline-six and 5.2L V8 engines under the "LR" (Lancer Red) badge. Crafted from durable, corrosion-resistant materials, this fuel cap is built to withstand the demands of both daily driving and spirited performance use, ensuring a secure, leak-proof seal while maintaining the classic aesthetic of your muscle car. The cap features a robust, threaded design that matches the original Dodge specifications, guaranteeing a perfect fit with the fuel tank s venting system, preventing fuel vapors from escaping while allowing proper pressure equalization. Its smooth, polished finish not only enhances the car s vintage appeal but also resists dirt and grime buildup, keeping it looking sharp under the hood. Beyond its functional reliability, the Gates SX-2176 is a testament to precision engineering, with a sturdy spring-loaded mechanism that ensures the cap stays securely in place during aggressive driving or rough road conditions. Whether you re cruising down a scenic highway or pushing your D300 to its limits at the track, this fuel cap delivers the durability and performance you expect from Gates, a brand synonymous with quality automotive components. Upgrade your fuel system with confidence, knowing that every detail from the tight-sealing gasket to the ergonomic grip has been thoughtfully designed to complement the power and heritage of your classic Dodge.

### Pros and Cons of buying a Gates SX-2176 Fuel Tank Cap for a 1957 1959 Dodge D300 (3.8L, 5.1L, 5.2L L6/V8 Gas LR)

1. **OEM Fitment and Compatibility** The Gates SX-2176 is designed specifically for the 1957 1959 Dodge D300 series, ensuring a proper fit without modifications. This reduces the risk of leaks or improper sealing compared to aftermarket alternatives that may not align perfectly.

2. **High-Quality Materials** Gates is a reputable brand known for durable, corrosion-resistant components. The cap is likely made from metal (likely steel or aluminum) with a rubber or silicone gasket, which helps prevent fuel vapors from escaping and keeps moisture out of the fuel system.

3. **Sealed Design** A properly sealed fuel cap helps maintain fuel pressure in the tank, reducing evaporation and ensuring the fuel gauge remains accurate. This is particularly useful in older vehicles where fuel system integrity can degrade over time.

4. **Easy Installation** The cap is designed to be a straightforward replacement, requiring minimal tools and effort. Most owners can install it themselves without professional help, saving labor costs.

5. **Prevents Fuel Theft and Contamination** A secure, well-sealed cap deters fuel siphoning and keeps debris, moisture, or pests from entering the fuel tank.

6. **Compatibility with Modern Fuel Systems** Even though your vehicle is older, the cap s design may still work well with modern fuel additives or ethanol blends if you modify your fuel system later.

7. **Aesthetic Match** The Gates cap is likely styled to match the original Dodge design, preserving the vehicle s vintage appearance.

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1. **Potential Overkill for Basic Use** If your vehicle is only driven occasionally and you don t experience fuel system issues (e.g., fuel gauge inaccuracies, vapor leaks, or contamination), a basic aftermarket cap might suffice. The Gates cap is a premium choice, which may not be strictly necessary unless you have specific concerns.

2. **Cost Compared to Alternatives** The Gates SX-2176 is likely more expensive than generic aftermarket fuel caps. If you re on a tight budget, cheaper options (even if not OEM) might work for basic functionality.

3. **Availability and Lead Times** Gates parts can sometimes have longer lead times or require ordering from specialty suppliers, whereas generic caps may be available at local auto parts stores.

4. **Potential for Over-Tightening** Some owners may accidentally overtighten the cap, which could damage the gasket or the tank s threads. Proper installation is key to avoiding this issue.

5. **No Additional Features** Unlike some modern fuel caps, this Gates part does not include features like pressure relief valves or advanced sealing technologies that might be found in newer vehicles. For a classic car, this is unlikely to be an issue, but it s worth noting.

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The Gates SX-2176 fuel tank cap is an excellent choice for a 1957 1959 Dodge D300 if you prioritize **OEM fitment, durability, and fuel system integrity**. It s particularly worthwhile if you ve noticed issues like fuel gauge inaccuracies, vapor leaks, or contamination in your fuel tank. The premium quality and secure seal justify the cost for owners who want to maintain their vehicle s performance and longevity.

However, if you re not experiencing specific problems and are looking for a budget-friendly solution, a compatible aftermarket cap might be sufficient. That said, the Gates cap is a reliable, long-term investment that aligns well with the vehicle s classic status.

- You want a direct OEM replacement with a proven seal.

- You ve had issues with fuel system leaks or contamination.

- You plan to keep the car in good running condition for the long term.

- You don t mind paying a slightly higher price for quality.

- You re on a tight budget and the vehicle isn t showing signs of fuel system problems.

- You can find a well-reviewed aftermarket cap that fits perfectly and is significantly cheaper.

- You re unsure whether the issue is worth the investment (e.g., if the car is a weekend project rather than a daily driver).

For most D300 owners who care about maintaining their vehicle s reliability and vintage integrity, the Gates cap is the **best choice**. It s a small but meaningful upgrade that pays off in the long run.

Details:

Gates Fuel Tank Cap for 1957-1959 Dodge D300 Pickup 3.8L 5.1L 5.2L L6 V8 Gas lr: Status: In Stock.

part #: sx2176 prices

• $32.38-$77.12

specifications fueltanksysteme:

• for makes: Dodge
• for years: 1957-1959
• brand: Gates
• mpn: Sx-2176
• 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: C653 49-40
• compatible model: D300 Pickup
• compatible year: 1959 1958 1957
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

returns fueltanksysteme:

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

general fueltanksysteme:

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

payments fueltanksysteme:

• credit card: Discover
• wallet: Paypal
• other

seller fueltanksysteme:

• city: Indianapolis, Indiana
• rating: 99.6%
• # reviews: 656691

offer fueltanksysteme:

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

shipping fueltanksysteme:

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

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