fits model: Sierra. make: Gmc. year: 2007–2018.

( Brand: Dorman Oe Solutions ), ( Manufacturer Part Number: SX-6994 ), ( Type: Fuel Pump Tank Seal ), ( Placement On Vehicle: Air Fuel Delivery Gaskets Sealing Systems ), ( Item Width: 6.000 ), ( Item Height: 0.250 ), ( Manufacturer Warranty: 1 Year / 2 Years / 3 Years / 5 Years Depending On Part ), ( Ipn: C148 73-13 ), ( Compatible Year: 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Dorman Fuel Pump Tank Seal )
The **Dorman SX-6994 Fuel Pump Tank Seal** is a high-quality, precision-engineered replacement part designed specifically for the **2007 2018 GMC Sierra 1500 and 2500 HD** models, ensuring a secure and leak-free fit for the fuel pump assembly. Crafted from durable, fuel-resistant materials, this seal is engineered to withstand the harsh conditions of heavy-duty applications, providing long-lasting performance and reliability. The **air gasket-style design** ensures a tight, airtight seal between the fuel tank and the fuel pump housing, preventing fuel vapors and contaminants from escaping while maintaining optimal fuel system integrity. Ideal for both original equipment replacement (OEM) and aftermarket upgrades, this seal is compatible with the **V8 and V6 engine configurations**, including those equipped with the **Duramax diesel** and **GM s standard gasoline powertrains**. Its robust construction minimizes the risk of leaks, reducing the likelihood of fuel spills, vapor emissions, and potential fire hazards. Whether you're performing routine maintenance, addressing a fuel system leak, or upgrading your vehicle s fuel handling components, the **Dorman SX-6994** delivers a dependable, long-lasting solution that meets or exceeds factory specifications. Built to endure the demands of daily driving, off-road adventures, or commercial use, this seal is a trusted choice for mechanics and DIY enthusiasts alike, ensuring a smooth, trouble-free fuel delivery system.
### **Pros and Cons of buying a Dorman SX-6994 Fuel Pump Tank Seal (for 2007 2018 GMC Sierra Air Gaskets YH)**
#### **Pros:**1. **Compatibility** The Dorman part is specifically designed for the 2007 2018 GMC Sierra (YH platform), ensuring a proper fit with the fuel tank and air gasket system. This reduces the risk of leaks or improper installation compared to generic or aftermarket alternatives.
2. **Quality and Durability** Dorman is a well-known brand under the Carter brand family, which is trusted for OEM-quality replacement parts. The fuel pump tank seal is likely made from durable materials that resist fuel degradation and environmental exposure, providing a longer lifespan than some cheaper alternatives.
3. **Ease of Installation** The part is designed to fit standard tools and procedures, making it easier for mechanics (even those without extensive experience) to install correctly. Proper installation is critical for preventing leaks, which can lead to fuel loss or fire hazards.
4. **Warranty Coverage** Dorman parts often come with a warranty (typically 12 24 months), offering some protection against manufacturing defects. This can be reassuring if the seal fails prematurely due to a flaw.
5. **Availability** As an OEM or OEM-equivalent part, it is widely available at auto parts stores (AutoZone, O Reilly, RockAuto, etc.), making it easy to purchase without long wait times.
6. **Prevents Fuel Leaks** A failing fuel tank seal can cause leaks, which may lead to fuel spills, reduced fuel efficiency, or even engine stalling. Replacing it with a Dorman seal helps maintain system integrity.
7. **Compatibility with Aftermarket Fuel Pumps** If you ve upgraded your fuel pump, the Dorman seal is likely compatible, ensuring a proper seal regardless of whether you re using an OEM or aftermarket component.
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#### **Cons:**1. **Cost** Dorman parts are generally more expensive than generic or no-name alternatives. While the price reflects quality, it may be a significant investment if you re on a tight budget, especially if the seal is the only failing component in the system.
2. **Potential Overkill for Minor Issues** If the fuel leak is caused by something other than the seal (e.g., a cracked fuel line, loose connection, or damaged tank), replacing just the seal may not fully resolve the problem. A thorough inspection is recommended to avoid unnecessary expenses.
3. **Installation Complexity** While the part itself is straightforward, removing the old seal may require draining the fuel tank or disconnecting electrical components. If you re not comfortable with fuel system work, hiring a mechanic could add to the cost.
4. **Mixed Reviews on Longevity** Some users report that while Dorman parts are reliable, they may not last as long as OEM seals in high-mileage vehicles or extreme conditions (e.g., frequent off-roading, extreme temperatures). If the original seal failed early, there s a chance the replacement could fail sooner than expected.
5. **Limited Customization** Unlike some aftermarket options, Dorman parts are not customizable. If you need a specific material (e.g., silicone vs. rubber) or a unique feature, you may have to settle for the standard design.
6. **Potential for Counterfeit Parts** Since Dorman is a popular brand, counterfeit or low-quality knockoffs may appear online or in some stores. Always verify the part s authenticity (check packaging, serial numbers, or purchase from reputable sellers).
7. **Additional Labor Costs** If you re not doing the work yourself, labor charges for installation can add up, especially if the mechanic recommends additional inspections (e.g., fuel line checks, tank integrity tests).
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### **Conclusion:**The **Dorman SX-6994 fuel pump tank seal** is a solid choice for replacing the seal in your 2007 2018 GMC Sierra, offering a good balance of quality, compatibility, and reliability. It is particularly well-suited for those who prioritize durability and ease of installation. However, it is not the most budget-friendly option, and it may not address underlying issues if the fuel leak stems from other components.
If your primary concern is **preventing leaks and ensuring a proper seal**, the Dorman part is a **recommended purchase**. However, if you re working with a limited budget or suspect other issues in the fuel system, consider:
- **Checking for leaks elsewhere** (lines, connections, tank integrity) before replacing just the seal.
- **Comparing prices** with other reputable brands (e.g., Spectra, Motorcraft, or genuine GM parts) to see if a slight variation offers better value.
- **DIY installation** if comfortable with fuel system work to save on labor costs.
**Final Recommendation:** **Buy the Dorman SX-6994 if:**- You need a reliable, OEM-quality seal for your GMC Sierra.
- You ve confirmed the seal is the source of the leak.
- You re willing to pay a premium for durability and ease of installation.
**Consider alternatives if:**- You re on a tight budget and can find a high-quality generic seal with similar reviews.
- You suspect other components (lines, tank, etc.) are failing and may need replacement soon.
- You re unsure about the installation process and prefer to have a mechanic verify the issue first.
Dorman Fuel Pump Tank Seal for 2007 - 2018 GMC Sierra Air Delivery Gaskets yh: Status: In Stock.