DORMAN OE SOLUTIONS SX-3388 Fuel Filler Neck Air Eo 6.0L 8.1L V8

( Brand: Dorman Oe Solutions ), ( Manufacturer Part Number: SX-3388 ), ( Type: Fuel Filler Neck ), ( Placement On Vehicle: Air Fuel Delivery Fuel Storage ), ( Item Width: 3.900 ), ( Item Height: 4.300 ), ( Item Length: 35.700 ), ( Manufacturer Warranty: 1 Year / 2 Years / 3 Years / 5 Years Depending On Part ), ( Ipn: C605 70-10 ), ( Compatible Model: Sierra 3500 ), ( Compatible Year: 2003 2002 2001 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Dorman Fuel Filler Neck )

Review DORMAN OE SOLUTIONS Fuel Filler Neck Gmc 6.0l 8.1l V8 Air Eo fits SIERRA 3500 2001–2003

The **Dorman SX-3388 Fuel Filler Neck** is a high-quality, direct-fit replacement designed specifically for the **2001 2003 GMC Sierra 3500** equipped with the **6.0L or 8.1L V8 engines**, including models featuring the **Electronic Oil (EO) system**. Engineered to meet or exceed OEM specifications, this fuel filler neck ensures a secure, leak-free connection between the fuel tank and the vehicle s fuel system, maintaining optimal performance and fuel efficiency. Crafted from durable, corrosion-resistant materials, the Dorman part is built to withstand the rigors of daily driving, harsh weather conditions, and the demands of heavy-duty applications, making it an ideal choice for both professional mechanics and DIY enthusiasts. The precise fitment of the SX-3388 eliminates the need for modifications, ensuring a straightforward installation that restores the original functionality of your truck s fuel system. Whether you re replacing a damaged or worn-out filler neck due to age, impact, or fuel system leaks, this Dorman component provides a reliable, long-lasting solution that helps prevent fuel spills, vapor leaks, and potential engine performance issues. With its robust construction and compatibility with the **EO system**, the SX-3388 is a trusted upgrade for maintaining the integrity of your GMC Sierra s fuel delivery system.

### **Pros and Cons of Buying a Dorman SX-3388 Fuel Filler Neck for a 2001-2003 GMC Sierra 3500 (6.0L/8.1L V8 Air/EO)**

1. **Direct Fitment** The Dorman SX-3388 is specifically designed for the 2001-2003 GMC Sierra 3500 with the 6.0L/8.1L V8 engine, ensuring compatibility without modifications.

2. **High-Quality Construction** Dorman is a well-regarded brand known for durable, reliable aftermarket parts. The fuel filler neck is made from sturdy materials to resist wear and corrosion.

3. **Easy Installation** The part is designed for straightforward replacement, requiring minimal tools and time. Most users report being able to install it in under an hour.

4. **Seal and Gasket Included** The kit typically comes with necessary seals and gaskets, reducing the need for additional purchases.

5. **Cost-Effective Alternative** Compared to OEM parts, the Dorman filler neck is often significantly cheaper while maintaining good performance.

6. **Prevents Fuel Spills** A properly functioning filler neck ensures a tight seal, reducing the risk of fuel leaks and spills during refueling.

7. **Compatibility with Common Mods** If you ve modified your vehicle (e.g., fuel line upgrades, fuel pump changes), this part is likely to integrate well with other aftermarket components.

1. **Potential Quality Variations** While generally reliable, some users report minor inconsistencies in fitment or finish, though this is rare with reputable sellers.

2. **Limited Brand Recognition** Unlike OEM parts, Dorman is not a factory brand, which may concern some buyers who prefer original equipment.

3. **May Require Adjustment** In rare cases, the filler neck might need slight trimming or alignment to fit perfectly, especially if the surrounding components are worn or misaligned.

4. **Not a Lifetime Part** Like all fuel system components, the filler neck can degrade over time due to fuel additives, UV exposure, or physical damage.

5. **Price Sensitivity** While affordable, some buyers may find it slightly more expensive than generic aftermarket alternatives, though these often lack the same quality assurance.

The **Dorman SX-3388 fuel filler neck** is a strong, practical choice for your 2001-2003 GMC Sierra 3500. It offers a balance of affordability, durability, and ease of installation, making it ideal for both DIY enthusiasts and those seeking a reliable replacement. While minor adjustments may be needed in rare cases, the part is well-suited for the job and backed by Dorman s reputation for quality.

If you re replacing a damaged or worn fuel filler neck, **purchase the Dorman SX-3388 from a trusted supplier** (such as RockAuto, Amazon, or a local auto parts store with good reviews). Ensure you have the necessary tools (screwdriver, pliers, and possibly a fuel line cutter) and follow the installation instructions carefully. If you re unsure about fitment, consider checking for user reviews or consulting a mechanic before purchasing. For long-term reliability, pair this with a high-quality fuel line and proper sealing to prevent future issues.

Details:

Dorman Fuel Filler Neck for 2001 - 2003 GMC Sierra 3500 6.0L 8.1L V8 Air eo: Status: In Stock.

part #: sx3388 prices

• $34.06-$121.50

specifications fueltanksysteme:

• for models: 3500, Sierra
• for makes: Gmc
• for years: 2001-2003
• brand: Dorman Oe Solutions
• mpn: Sx-3388
• type: Fuel Filler Neck
• placement on vehicle: Air Fuel Delivery Fuel Storage
• item width: 3.900
• item height: 4.300
• item length: 35.700
• manufacturer warranty: 1 Year / 2 Years / 3 Years / 5 Years Depending On Part
• ipn: C605 70-10
• compatible model: Sierra 3500
• compatible year: 2003 2002 2001
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Dorman Fuel Filler Neck

general fueltanksysteme:

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

returns fueltanksysteme:

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

payments fueltanksysteme:

• credit card: Diners-club
• other
• wallet: Paypal

offer fueltanksysteme:

• availability: In Stock
• started: May 8, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1

seller fueltanksysteme:

• # reviews: 654796
• city: Indianapolis, Indiana
• rating: 99.6%

shipping fueltanksysteme:

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

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