1. Exhaust & Emission Parts To Buy
  2. sku: 20523238023111602
  3. NISSAN 11019-EZ40A

NISSAN 11019-EZ40A Regulator Valve Grommet

fits make: Nissan. year: 2016–2019.

11019-ez40a Nissan Genuine Regulator Valve Grommet

( Manufacturer Part Number: 11019-EZ40A ), ( Part Type: Valve Regulator ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Year: 2016 2017 2018 2019 ), ( Parts Included: Only Part Reference 9 On The Diagram Is Included )

Review NISSAN Genuine Regulator Valve Grommet fits 2016–2019

The **Nissan 11019-EZ40A Regulator Valve Grommet** is a precision-engineered component designed to ensure optimal performance and longevity of the emission control system in select Nissan vehicles, particularly those equipped with the EZ40A fuel injection system. This high-quality grommet serves as a critical seal between the regulator valve and its mounting bracket, preventing leaks, contamination, and vacuum loss that could compromise engine efficiency, fuel economy, or emissions compliance. Crafted from durable, heat-resistant rubber or silicone, the grommet is engineered to withstand the harsh conditions of underhood environments, including exposure to engine heat, oil, and fuel vapors, while maintaining its elasticity and sealing integrity over time. Its snug fit and precise dimensions guarantee a secure connection, reducing the risk of premature wear or failure in the fuel pressure regulator assembly a component vital for maintaining consistent fuel delivery and preventing engine misfires or hesitation. Whether replacing a worn or cracked original part or upgrading during routine maintenance, this grommet is a straightforward yet essential upgrade for restoring proper function to the vehicle s fuel system, ensuring reliable operation and adherence to emissions standards. Its compatibility with Nissan s fuel injection systems makes it a trusted choice for mechanics and DIY enthusiasts alike, offering both performance reliability and ease of installation.

**Pros and Cons of buying a Nissan 11019-EZ40A Regulator Valve Grommet**

The **Nissan 11019-EZ40A** is a grommet used in the **regulator valve assembly** of certain Nissan vehicles, particularly those with the **EZ40A fuel pump regulator**. Below is a detailed breakdown of its advantages and drawbacks.

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### **Pros**

1. **OEM Quality and Fit**

The 11019-EZ40A is an **original equipment manufacturer (OEM) part**, meaning it is designed to match the exact specifications of Nissan s original components. This ensures a proper fit, reducing the risk of leaks or improper sealing that can occur with aftermarket alternatives.

2. **Reliability and Durability**

OEM parts are built to withstand the same conditions as the original components, which means they are typically more durable and less prone to premature failure. This can extend the lifespan of the fuel system, especially in vehicles with high mileage or those used in demanding driving conditions.

3. **Compatibility with Nissan s Fuel System**

The grommet is specifically engineered to work seamlessly with the **EZ40A fuel pump regulator**, which is found in models like the **Nissan Altima (2007-2012), Sentra (2006-2012), and Maxima (2009-2012)**. Using the correct part minimizes the risk of compatibility issues that can arise with generic or non-OEM replacements.

4. **Prevents Fuel Leaks and Contamination**

A worn or damaged grommet can allow fuel vapors or debris to enter the fuel system, leading to **clogged fuel lines, reduced engine performance, or even fuel leaks**. Replacing it with an OEM part ensures a tight seal, maintaining the integrity of the fuel system.

5. **Easier Installation and Replacement**

Since it is an OEM part, the 11019-EZ40A is designed to be straightforward to install, especially if you are familiar with basic automotive repairs. It typically requires minimal tools and does not necessitate specialized equipment.

6. **Warranty Coverage (If Purchased from Authorized Sources)**

If you buy the part from an **authorized Nissan dealer or a reputable online retailer**, it may come with a warranty, providing peace of mind in case of defects. Aftermarket parts often lack such guarantees.

7. **Supports Vehicle Resale Value**

Using OEM parts in repairs or replacements can be beneficial if you plan to sell the vehicle later. Some buyers prefer vehicles that have been maintained with genuine components, which can positively influence resale value.

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### **Cons**

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

OEM parts are generally more expensive than aftermarket equivalents. While the price difference may not be significant for a single grommet, it can add up when replacing multiple components. For example, the 11019-EZ40A may cost **$10 $25**, whereas a comparable aftermarket part could be **$5 $15**.

2. **Limited Availability Outside Nissan Dealerships**

While the part is available from **Nissan dealerships, online marketplaces (e.g., RockAuto, Amazon, eBay), and auto parts stores (e.g., AutoZone, O Reilly)**, sourcing it from non-authorized sellers may risk receiving a counterfeit or low-quality duplicate. Always verify the seller s reputation before purchasing.

3. **Potential for Overkill in Minor Repairs**

If the grommet failure is isolated and the rest of the fuel system is in good condition, replacing only the grommet may be sufficient. However, some mechanics or DIYers might opt for a **full fuel pump regulator replacement** (e.g., the entire EZ40A assembly) if they suspect other issues, which could be unnecessary if the grommet is the only faulty component.

4. **Installation May Require Fuel System Draining**

Replacing the grommet often involves **disconnecting the fuel line and possibly draining some fuel**, which can be messy and time-consuming. If you are not comfortable handling fuel, you may need to seek professional help, adding to the overall cost.

5. **Risk of Counterfeit Parts**

Due to the popularity of Nissan parts, there is a market for **counterfeit OEM parts**. These fakes may not fit correctly, fail prematurely, or even damage the fuel system. To avoid this, purchase from **trusted sellers** and inspect the part for signs of authenticity (e.g., proper packaging, part numbering, and branding).

6. **Limited Longevity in High-Mileage or Abused Vehicles**

While the grommet itself is durable, if the vehicle has **extreme mileage, poor fuel quality, or a history of neglect**, the grommet may wear out faster than expected. In such cases, preventive maintenance (e.g., regular fuel system cleaning) can help extend its life.

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### **Conclusion**

The **Nissan 11019-EZ40A regulator valve grommet** is a **high-quality, reliable OEM part** that ensures a proper fit and seal in the fuel system. Its advantages such as **durability, compatibility, and leak prevention** make it a **strong choice for those prioritizing long-term reliability and vehicle performance**. However, the **higher cost and potential for counterfeit parts** are drawbacks that must be considered, especially for budget-conscious buyers.

For most **DIY enthusiasts or those performing routine maintenance**, the 11019-EZ40A is a **worthwhile investment** if purchased from a reputable source. If cost is a major concern, **aftermarket alternatives** (from trusted brands like **Denso, Bosch, or ACDelco**) can be a viable option, provided they meet the same quality standards.

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### **Recommendation**

1. **Buy from an Authorized Source**

Purchase the **11019-EZ40A from a Nissan dealership, RockAuto, or a well-reviewed online retailer** to ensure authenticity and warranty coverage.

2. **Consider Aftermarket Options if Budget is Tight**

If the part is only slightly more expensive than a high-quality aftermarket grommet (e.g., **Denso or Bosch**), compare reviews and pricing before deciding.

3. **Perform Preventive Maintenance**

If your vehicle has **high mileage or shows signs of fuel system issues**, consider **cleaning the fuel injectors and replacing the fuel filter** alongside the grommet replacement to prevent future problems.

4. **DIY Installation if Comfortable**

If you have **basic mechanical skills**, replacing the grommet is a **straightforward job** that can save labor costs. Follow **Nissan s service manual** or a **reliable online guide** (e.g., YouTube tutorials from trusted sources).

5. **Seek Professional Help if Unsure**

If you are **not confident in handling fuel system repairs**, consult a **trusted mechanic** to avoid mistakes that could lead to **fuel leaks, engine damage, or voided warranties**.

**Final Verdict:** The **11019-EZ40A is the best choice for reliability**, but weigh the cost against aftermarket options if budget is a concern. Always prioritize **quality and authenticity** to ensure long-term performance.

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specifications emissyste:

  • for makes: Nissan
  • for years: 2016-2019
  • mpn: 11019-ez40a
  • part type: Valve Regulator
  • genuine oem: Yes
  • manufacturer warranty: 1 Year
  • universal fitment: Direct Replacement
  • year: 2016 2017 2018 2019
  • parts included: Only Part Reference 9 On The Diagram Is Included

shipping emissyste:

  • cost: $8.95
  • transit: 2-5 Days
  • type: Fixed
  • service: Standard
  • class: Standard

general emissyste:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts
  • condition: New

payments emissyste:

  • wallet: Google-pay
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  • credit card: Mastercard

returns emissyste:

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

seller emissyste:

  • city: Wayzata, Minnesota
  • rating: 99.1%
  • # reviews: 1700

offer emissyste:

  • quantity: 3
  • started: March 4, 2026
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
for makes: nissan, for years: 2016-2019, part type: valve regulator, genuine oem: yes, manufacturer warranty: 1 year, universal fitment: direct replacement, year: 2016 2017 2018 2019, parts included: only part reference 9 on the diagram is included,
manufacturer: nissan, category: auto parts > car truck parts accessories > exhaust emission systems > exhaust emission parts, sku: 20523238023111602,
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