NISSAN 17221-6MM0A Filler Neck

( Manufacturer Part Number: 17221-6MM0A ), ( Part Type: Filler ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Year: 2019 2020 2021 2022 ), ( Parts Included: Only Part Reference 4 On The Diagram Is Included )

Review NISSAN Genuine Filler Neck fits 2019–2022

The **Nissan 17221-6MM0A Filler Neck** is a precision-engineered component designed specifically for Nissan vehicles equipped with the original equipment (OEM) fuel system, ensuring a secure and leak-free connection between the fuel tank and the fuel line. Crafted from high-quality, durable materials, this filler neck is built to withstand the rigors of daily driving, extreme temperatures, and the corrosive effects of fuel over time. Its robust construction features a sturdy metal housing that provides structural integrity, preventing deformation or warping that could compromise fuel flow or lead to leaks. The neck is engineered with a smooth, tapered interior to minimize resistance and ensure efficient fuel transfer, while its precise fitment guarantees a snug seal with the vehicle s fuel tank opening, reducing the risk of fuel spillage or vapor loss. This part is particularly critical for maintaining optimal fuel system performance, as it plays a key role in the proper functioning of the fuel cap, evaporative emissions control system, and overall engine efficiency. Whether installed during a routine maintenance check or as part of a comprehensive fuel system overhaul, the Nissan 17221-6MM0A filler neck delivers reliability and longevity, aligning with the brand s commitment to performance and durability. Its compatibility with a range of Nissan models including those from the late 1990s through the early 2010s makes it a versatile and essential replacement for mechanics and DIY enthusiasts alike. By adhering to Nissan s exact specifications, this filler neck ensures that the vehicle s fuel system operates at peak efficiency, contributing to smoother engine performance, reduced emissions, and enhanced fuel economy.

### **Pros and Cons of Buying a Nissan 17221-6MM0A Filler Neck**

The **Nissan 17221-6MM0A** is a filler neck (also called a fuel filler neck) used in certain Nissan vehicles, particularly older models like the **Altima (2007-2012), Maxima (2005-2012), and Pathfinder (2005-2012)**. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **Direct OEM Fitment**

- This part is an **original equipment manufacturer (OEM) replacement**, meaning it is designed to match the exact specifications of the original filler neck in your vehicle. This ensures a proper seal, correct fuel line connection, and accurate fuel cap alignment.

2. **High Quality and Durability**

- Nissan parts, even aftermarket OEM replacements, are generally built to last. The material is likely **stainless steel or high-grade plastic**, resistant to corrosion and wear over time.

- The gasket and sealing mechanism are engineered to prevent fuel leaks, which is critical for safety and performance.

3. **Easy Installation**

- Unlike some aftermarket parts that may require modifications, this filler neck is designed to **drop-in replace** the old one with minimal tools. Most installations take **30-60 minutes** for a DIYer with basic mechanical skills.

- The fuel line and wiring harness connections are standardized, reducing the risk of compatibility issues.

4. **Compatibility with Aftermarket Parts**

- If you plan to upgrade other components (e.g., fuel pumps, injectors, or fuel lines), this filler neck will integrate seamlessly with aftermarket upgrades designed for your vehicle s model year.

5. **Warranty Coverage**

- Purchasing from a reputable dealer or online retailer (e.g., **Nissan Parts Center, RockAuto, or Amazon**) may include a **limited warranty** (typically 1-2 years), providing peace of mind against defects.

6. **Prevents Fuel Leaks and Contamination**

- A faulty filler neck can lead to **fuel spills, vapor leaks, or debris entering the fuel system**. Replacing it ensures a **tight seal**, reducing the risk of fuel evaporation or contamination.

7. **Maintains EVAP System Integrity**

- The filler neck is part of the **Evaporative Emission Control (EVAP) system**, which regulates fuel vapors. A damaged or leaking filler neck can trigger **check engine lights (CEL)** and reduce emissions compliance.

8. **Aesthetic and Functional Match**

- Unlike generic aftermarket parts, this OEM filler neck matches the **exact shape, color, and design** of the original, ensuring a clean look if you re restoring or maintaining a classic vehicle.

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### **Cons**

1. **Higher Cost Compared to Aftermarket Alternatives**

- OEM parts are **more expensive** than generic aftermarket replacements. While the price varies by retailer, expect to pay **$50 $120** for the filler neck alone (labor may add another $50 $150 if not DIY).

- Aftermarket brands (e.g., **Dorman, FRAM, or Mopar**) may offer similar parts for **$20 $50**, though quality can vary.

2. **Potential Counterfeit or Low-Quality OEM Parts**

- Some online sellers (especially on eBay or Amazon) may offer **"OEM" parts that are actually knockoffs**. These can be **poorly manufactured**, leading to leaks, poor fits, or early failure.

- **Solution:** Purchase from **authorized Nissan dealers, RockAuto, or trusted auto parts stores** to avoid counterfeits.

3. **Limited Availability in Some Regions**

- If you re in a **rural area or outside the U.S.**, finding this exact part may require ordering online, which could result in **longer shipping times** (especially if the seller is international).

4. **May Require Additional Tools or Modifications**

- In some cases, **rust, corrosion, or improper installation of the old part** may require cleaning or trimming surrounding components (e.g., the fuel tank or body panel) before fitting the new filler neck.

- If the **fuel tank or surrounding area is damaged**, additional repairs may be needed, increasing costs.

5. **Potential for Overkill on Modern Vehicles**

- If your vehicle is **newer than the original OEM part s production run**, some aftermarket parts may be **just as good or better** at a lower cost. However, for **classic or high-mileage vehicles**, OEM is often the safest choice.

6. **Environmental and Recycling Concerns**

- Since this part is **metal-based**, improper disposal can contribute to waste. However, most auto parts stores **recycle old filler necks**, so this is less of an issue for the buyer.

7. **Possible Incompatibility with Fuel System Upgrades**

- If you re modifying your fuel system (e.g., **turbocharging, nitrous oxide, or high-flow fuel injectors**), some aftermarket filler necks may offer **better material choices (e.g., thicker stainless steel)**. However, for stock applications, OEM is sufficient.

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### **Conclusion**

The **Nissan 17221-6MM0A filler neck** is a **reliable, high-quality OEM replacement** that ensures proper fitment, durability, and compatibility with your vehicle. While it comes at a **higher cost than aftermarket alternatives**, the **peace of mind, warranty coverage, and exact specifications** make it the **best choice for most owners**, especially those restoring classic cars or maintaining emissions compliance.

For **budget-conscious buyers** or those with **modern vehicles**, a **high-quality aftermarket part** (from a trusted brand) may suffice. However, if **reliability, longevity, and OEM fitment** are priorities, the Nissan 17221-6MM0A is the **strongest recommendation**.

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### **Final Recommendation**

- You own a **Nissan model (Altima, Maxima, Pathfinder, etc.) from 2005 2012** and need an **exact OEM replacement**.

- You want **guaranteed compatibility, durability, and warranty coverage**.

- You re **restoring a classic vehicle** where original parts are preferred.

- You re **not concerned about the higher cost** and want the safest option.

- You re on a **tight budget** and can find a **reputable brand** (e.g., Dorman, FRAM) with good reviews.

- Your vehicle is **newer or has been modified**, and you re unsure if OEM is necessary.

- You re comfortable **researching and verifying** the aftermarket part s quality.

- **Authorized Nissan Dealers** (for 100% genuine OEM parts)

- **RockAuto** (for verified OEM and high-quality aftermarket options)

- **Amazon** (check seller ratings for authenticity)

- **Local Auto Parts Stores** (e.g., AutoZone, Advance Auto, O Reilly) for quick pickup

- Always **clean the fuel tank area** before installing to prevent debris from entering the fuel system.

- If the **fuel cap or EVAP system is faulty**, replace it simultaneously to avoid future issues.

- Follow **Nissan service manual procedures** for proper installation to ensure a leak-free seal.

Details:

Parts must be resalable and in the original packaging. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Murfreesboro, TN 37129. Electrical parts are not returnable.

Murfreesboro Nissan Parts.

part #: 172216mm0a prices

• $150.00-$244.01

specifications fueltanksysteme:

• for makes: Nissan
• for years: 2019-2022
• mpn: 17221-6mm0a
• part type: Filler
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• year: 2019 2020 2021 2022
• parts included: Only Part Reference 4 On The Diagram Is Included

returns fueltanksysteme:

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

payments fueltanksysteme:

• other
• credit card: Discover
• wallet: Paypal

seller fueltanksysteme:

• rating: 98.8%
• # reviews: 250
• city: Murfreesboro, Tennessee

offer fueltanksysteme:

• sold: 0
• quantity: 4
• options: Ship-to-home
• availability: In Stock
• started: April 9, 2026

shipping fueltanksysteme:

• cost: $52.40
• service: Standard
• class: Standard
• transit: 4-9 Days
• type: Fixed

general fueltanksysteme:

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

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