GATES SX-1998 Fuel Tank Gas Cap Xk 6.6L V8

( Brand: Gates ), ( Manufacturer Part Number: SX-1998 ), ( 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: C477 11-66 ), ( Compatible Model: Sierra 3500 Hd ), ( Compatible Year: 2013 2012 2011 ), ( 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 Hd 6.6l V8 Gas Delivery Xk fits SIERRA 3500 2011–2013

The **Gates SX-1998 Fuel Tank Cap** is a meticulously engineered, high-performance replacement part designed specifically for the **2011 2013 GMC Sierra 3500 HD** equipped with the **6.6L Duramax V8 gas-powered engine (XK trim)**. Crafted from premium materials, this fuel cap is built to meet or exceed OEM specifications, ensuring a secure, leak-proof seal while maintaining the vehicle s original aesthetic and functionality. The cap features a robust, corrosion-resistant construction, incorporating a durable plastic housing reinforced with precision-molded internal components to withstand the rigors of daily use, including exposure to extreme temperatures, road debris, and the occasional bump or jostle. Its **threaded design** is engineered for a perfect fit with the fuel tank s inlet, preventing fuel vapors from escaping while allowing proper venting to comply with emissions regulations. The cap s **smooth, ergonomic grip** ensures easy installation and removal, even in tight or awkward positions, while its **clear or black finish** (depending on the model year) blends seamlessly with the vehicle s exterior, preserving its factory appearance. Beyond its practical benefits, this Gates part is a testament to reliability, offering long-lasting performance without the risk of leaks, fuel odor, or potential damage to the fuel system. Whether you re tackling long-haul trucking, off-road adventures, or daily commutes, the **Gates SX-1998 Fuel Tank Cap** delivers the durability and precision needed to keep your GMC Sierra 3500 running at its best.

**Pros and Cons of buying a Gates SX-1998 Fuel Tank Cap for a 2011-2013 GMC Sierra 3500 6.6L V8 Gas (XK)**

### **Pros**

1. **OEM Compatibility** The Gates SX-1998 is designed as an exact replacement for the original equipment manufacturer (OEM) fuel cap on your GMC Sierra 3500. This ensures a perfect fit, both mechanically and aesthetically, reducing the risk of leaks or improper sealing.

2. **Durability** Gates is a well-known brand in automotive aftermarket parts, known for producing high-quality, long-lasting components. The fuel cap is likely made from durable materials that can withstand wear from fuel vapors, temperature fluctuations, and minor impacts.

3. **Seal Integrity** A properly sealed fuel cap prevents fuel vapors from escaping, which helps maintain proper fuel pressure in the tank. This can improve engine performance and reduce emissions, though the primary benefit is preventing fuel loss and potential vapor leaks.

4. **Easy Installation** Since it is a direct replacement, the installation process is straightforward. Most users report that it can be installed in under 30 minutes with basic tools, though some may need to address minor corrosion or debris in the fuel filler neck.

5. **Cost-Effective** Compared to OEM replacement parts, aftermarket options like the Gates SX-1998 are often more affordable while still meeting quality standards. This makes it a practical choice for budget-conscious buyers.

6. **Availability** Gates parts are widely available through auto parts stores, online retailers, and dealerships, making it easy to purchase without long waits or shipping delays.

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### **Cons**

1. **Potential Counterfeit Concerns** While Gates is a reputable brand, counterfeit versions of their parts occasionally enter the market. Buying from unauthorized sellers or untrusted online platforms may result in a substandard or fake product. Always verify the seller s reputation and purchase from authorized dealers or well-known retailers.

2. **Minor Fitment Issues** Although the Gates SX-1998 is designed for your specific vehicle, slight variations in fuel filler neck design or minor corrosion in the tank opening could cause fitment challenges. Some users may need to clean the area thoroughly or use a rubber mallet to ensure a proper seal.

3. **Price Sensitivity** While generally affordable, some buyers may find the price slightly higher than the cheapest generic alternatives. However, the trade-off in quality and longevity often justifies the cost.

4. **Limited Customization** Unlike some aftermarket parts, this is a direct replacement with no customization options. If you were looking for a different finish or style, you would need to purchase a non-OEM cap, which may not fit as securely.

5. **Potential for Sticking** Over time, fuel residue and debris can cause the cap to stick or fail to seal properly. Regular cleaning and maintenance are necessary to prevent this issue.

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### **Conclusion**

The Gates SX-1998 fuel tank cap is an excellent choice for your 2011-2013 GMC Sierra 3500 6.6L V8 gas model. It offers OEM-level compatibility, durability, and ease of installation, making it a reliable replacement. The primary risks counterfeit products and minor fitment issues can be mitigated by purchasing from trusted sources and ensuring the fuel filler neck is clean. For most drivers, the benefits outweigh the drawbacks, making it a recommended option.

### **Recommendation**

Purchase the Gates SX-1998 fuel tank cap from an authorized retailer or a well-reviewed online store (such as RockAuto, Amazon, or a local auto parts chain). Before installation, clean the fuel filler neck thoroughly to remove any corrosion or debris. If you encounter any resistance during installation, do not force the cap double-check for obstructions or consult a professional. Regularly inspect the cap and seal for signs of wear, and replace it if it no longer seals properly to avoid fuel vapor leaks or performance issues.

Details:

Gates Fuel Tank Cap for 2011 - 2013 GMC Sierra 3500 HD 6.6L V8 Gas Delivery xk: Status: In Stock.

part #: sx1998 prices

• $77.84-$107.51

specifications fueltanksysteme:

• for models: 3500, Sierra
• for makes: Gmc
• for years: 2011-2013
• brand: Gates
• mpn: Sx-1998
• 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: C477 11-66
• compatible model: Sierra 3500 Hd
• compatible year: 2013 2012 2011
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Gates Fuel Tank Cap

seller fueltanksysteme:

• # reviews: 661205
• rating: 99.6%
• city: Indianapolis, Indiana

returns fueltanksysteme:

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

payments fueltanksysteme:

• credit card: Discover
• other
• wallet: Paypal

offer fueltanksysteme:

• started: May 25, 2026
• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 10

shipping fueltanksysteme:

• transit: 3-5 Days
• cost: $0.00
• service: Standard, Expedited
• class: Standard, Expedited
• type: Fixed

general fueltanksysteme:

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

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