DORMAN 904-018 Fuel Supply Line

( Brand: Dorman ), ( Manufacturer Part Number: 904-018 ), ( Type: Fuel Line ), ( Item Height: 37.000 ), ( Item Width: 6.300 ), ( Item Length: 2.800 )

Review DORMAN Fuel Supply Line fits SIERRA SILVERADO 1500 2008–2018

The **Dorman 904-018 Fuel Supply Line** is a high-quality, direct-fit replacement designed specifically for **2008 through 2018 Chevrolet Silverado 1500 and GMC Sierra 1500** models equipped with **5.3L V8 engines** (L56/L57/L5P/L5T/L5V/L5W/L5Z) and **6.2L V8 engines** (L83/L84/L86/L87). Engineered to meet or exceed OEM standards, this fuel line ensures reliable fuel delivery while maintaining the integrity and performance of your vehicle s fuel system. Crafted from durable, flexible **reinforced rubber**, this line is resistant to kinking, cracking, and fuel degradation, providing long-lasting durability even under the demanding conditions of daily driving, towing, or off-road adventures. The **precision-molded design** guarantees a snug, leak-proof connection at both ends, eliminating the risk of fuel spills or air leaks that could disrupt engine performance or trigger warning lights. Whether you're performing routine maintenance, upgrading your fuel system, or addressing a worn-out original component, this Dorman replacement offers a **cost-effective, hassle-free solution** that restores your truck s fuel efficiency and power output. Built to withstand the rigors of heavy-duty applications, this fuel line is an essential part of any DIY repair or professional service, ensuring your Silverado or Sierra continues to run smoothly for miles to come.

**Pros and Cons of buying a Dorman 904-018 Fuel Supply Line for 2008 2018 Sierra 1500/Silverado**

The Dorman 904-018 is a common aftermarket replacement for the fuel supply line on GM s 5.3L and 6.2L V8 engines (L56/L57/LY6/LY7) found in the 2008 2018 Chevrolet Silverado 1500 and GMC Sierra 1500. Below is a detailed breakdown of its advantages and drawbacks.

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### **Pros**

1. **Direct OEM Replacement**

The Dorman 904-018 is designed to match the original equipment manufacturer (OEM) specifications for the fuel line, including length, diameter, and fittings. This ensures a proper fit without modifications, reducing the risk of leaks or improper connections.

2. **High-Quality Materials**

Dorman is a reputable brand known for using durable materials, including reinforced rubber or synthetic tubing with metal end fittings. This line is designed to withstand fuel system pressures and resist kinking or cracking over time, especially in high-mileage vehicles.

3. **Easy Installation**

The part is straightforward to install, requiring only basic tools. It typically involves disconnecting the old line from the fuel rail and fuel filter, then attaching the new line to the same points. No special equipment or expertise is needed, making it a DIY-friendly repair.

4. **Cost-Effective Solution**

Compared to OEM parts, the Dorman line is often significantly cheaper while maintaining reliability. For example, the 904-018 is priced well below GM s original part numbers, offering a balance between affordability and performance.

5. **Widespread Availability**

Dorman parts are widely stocked at auto parts stores (e.g., AutoZone, O Reilly, Advance Auto), online retailers (Amazon, RockAuto), and dealerships. This makes it easy to purchase, even in remote areas or during emergencies.

6. **Compatibility with Common Modifications**

The line is compatible with aftermarket fuel filters, fuel line kits, and other modifications commonly installed on these trucks. It won t interfere with upgrades like fuel injectors, turbochargers, or performance fuel pumps.

7. **Warranty Coverage**

Dorman offers a warranty (typically 12 24 months) on its parts, providing some peace of mind in case of defects. This is particularly useful if the line fails prematurely due to manufacturing issues.

8. **Prevents Fuel Leaks**

One of the most common failures in these trucks is a cracked or brittle fuel line, leading to fuel leaks under the hood. Replacing it with the Dorman 904-018 eliminates this risk, preventing potential fire hazards or fuel odors.

9. **No Specialized Knowledge Required**

Unlike some high-performance fuel lines, this part doesn t require specialized knowledge to install or maintain. It s a simple, plug-and-play solution for a failing OEM line.

10. **Positive User Feedback**

Many owners and mechanics report positive experiences with Dorman parts, citing reliability and longevity. Reviews often highlight that the line holds up well under normal driving conditions, especially when paired with a high-quality fuel filter.

---

### **Cons**

1. **Potential for Counterfeit Parts**

Dorman parts, like many aftermarket components, can be counterfeited. Some sellers may offer "Dorman" parts that are actually knockoffs with inferior materials or poor fittings. To avoid this, purchase from reputable retailers (e.g., RockAuto, local auto parts stores with return policies) and verify the part number and packaging.

2. **Limited Longevity in Harsh Conditions**

- **High heat or cold climates**, where rubber can become brittle or expand/contract excessively.

- **Exposure to UV light**, which can weaken the tubing over time if installed near the hood or engine bay.

- **Contaminated fuel systems**, where debris or ethanol blends may accelerate wear on the line.

To mitigate this, consider using a fuel line protector or installing the line in a shaded area if possible.

3. **Not Ideal for High-Performance Applications**

The Dorman line is designed for stock or mildly modified engines. For heavily modified trucks (e.g., turbocharged, nitrous-injected, or high-horsepower builds), a high-performance fuel line (e.g., from MSD, Moroso, or Spectre) may be necessary to handle increased fuel flow and pressure.

4. **May Require Additional Parts**

- **Clamps or hose clamps** (if the fittings are loose or the old clamps are damaged).

- **A new fuel filter** (if the existing one is clogged or old).

- **Fuel line connectors or adapters** (if the OEM fittings are corroded or stripped).

These extras add to the cost but are often necessary for a complete repair.

5. **Ethanol Compatibility Concerns**

Modern fuels often contain ethanol, which can degrade rubber over time. While Dorman lines are typically ethanol-resistant, prolonged exposure to high-ethanol blends (e.g., E30 or higher) may still cause premature aging. Regular fuel system treatments (e.g., Seafoam) can help mitigate this.

6. **Installation Challenges in Tight Spaces**

Depending on the truck s modifications or wear, the fuel line route may be obstructed by other components (e.g., exhaust headers, brake lines, or aftermarket parts). In such cases, the installer may need to bend or reposition the line carefully to avoid damage.

7. **No Performance Upgrades**

Unlike high-flow fuel lines, the Dorman 904-018 does not improve fuel delivery or engine performance. It is strictly a replacement part for a failing OEM line. For performance gains, a dedicated performance fuel line would be required.

8. **Potential for Leaks at Fittings**

While rare, leaks can occur at the metal-to-rubber interface if the fittings are not tightened properly or if the rubber becomes degraded. Ensuring a secure, even torque on the fittings during installation is critical to preventing this.

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### **Conclusion**

The Dorman 904-018 fuel supply line is a **reliable, cost-effective, and easy-to-install replacement** for the OEM fuel line in 2008 2018 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks with 5.3L or 6.2L V8 engines. It addresses the most common failure point in these vehicles cracked or brittle fuel lines while maintaining compatibility with stock and mildly modified setups. The part s durability, widespread availability, and straightforward installation make it a strong choice for most owners.

However, it is not without limitations. Counterfeit parts, environmental degradation, and compatibility issues with extreme modifications are potential drawbacks. To maximize its lifespan, pair it with a high-quality fuel filter, avoid prolonged UV exposure, and ensure proper installation.

---

### **Recommendation**

For the average owner or mechanic performing routine maintenance, the **Dorman 904-018 is the best choice** for replacing a failing fuel line. It strikes a balance between cost, quality, and ease of use. Here s how to proceed:

1. **Purchase from a Trusted Source**: Buy the part from a reputable retailer (e.g., RockAuto, AutoZone, or a local auto parts store with a return policy) to avoid counterfeit products. Verify the part number (904-018) and packaging to ensure authenticity.

2. **Inspect the Fuel System**: While replacing the line, check the fuel filter, fuel rail, and fuel injectors for wear or clogs. Replace the fuel filter if it s old or dirty, as a clogged filter can stress the new line.

- Disconnect the battery before starting.

- Relieve fuel pressure by turning the ignition to "ON" (do not start the engine) for 3 5 minutes or use a fuel pressure release tool.

- Clean the fittings thoroughly to remove debris or corrosion.

- Use new clamps or ensure existing clamps are secure.

- Avoid over-tightening the fittings to prevent damage to the rubber.

- If your truck operates in extreme temperatures, consider installing the line in a shaded or insulated area.

- Use a fuel system cleaner (e.g., Seafoam) every 3,000 5,000 miles to reduce ethanol-related degradation.

- If modifying the truck for performance, research high-flow fuel lines or performance fuel pumps to complement the Dorman line.

5. **Monitor for Issues**: After installation, check for leaks under the hood and listen for unusual fuel system noises. If the line fails prematurely, contact the retailer or manufacturer to address potential defects under warranty.

**Final Verdict**: The Dorman 904-018 is an **excellent, practical solution** for replacing a worn fuel line in these trucks. Unless you re pursuing extreme modifications, it is the recommended part for reliability and ease of use. For stock or mildly modified applications, it will serve you well for the

Details:

All accessories hardware. This is a rare combination in fast-growing, global enterprise that makes Dorman special place to work. Our engineers and designers go out of their way to save repair technicians time, vehicle owners money.

ABOUT DORMAN PRODUCTS: Peoples lives and livelihoods depend upon cars trucks. FEATURES: Trustworthy replacement - this fuel line safely replaces the original to fix leaks. Comprehensive solutions - this fuel line is part of a diverse collection repair. Placing an order outside the US is easy.

Original packaging. This replacement fuel line is made to safely transfer and endure in tough Underwood under car conditions. Dorman gives people greater freedom to fix these vehicles by constantly developing new repair solutions that put owners and installers first. The engine that powers us is our Culture of Contribution.

Dorman 904-018 Fuel Supply Line For 08-18 Sierra 1500 Silverado 1500. Durable design - withstands tough Underwood and under car conditions. Fits what vehicles: 2008 2018 Chevrolet Silverado 15 GMC Sierra 1500. Quality engineering - designed in the USA and backed by decades of automotive aftermarket experience.

Updated 10.19.2023.

part #: 904018 prices

• $20.89-$93.62

specifications fueltanksysteme:

• for models: 1500, Sierra, Silverado
• for years: 2008-2018
• brand: Dorman
• mpn: 904-018
• type: Fuel Line
• item height: 37.000
• item width: 6.300
• item length: 2.800

offer fueltanksysteme:

• quantity: 10
• availability: In Stock
• options: Ship-to-home
• started: January 31, 2026
• sold: 0

shipping fueltanksysteme:

• transit: 4-7 Days
• cost: $0.00
• service: Standard
• class: Standard
• type: Fixed

general fueltanksysteme:

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

seller fueltanksysteme:

• rating: 99.4%
• # reviews: 143547
• city: Miami, Florida

payments fueltanksysteme:

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

returns fueltanksysteme:

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

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