INFINITI 78850-AM80B Fuel Door Tank Filler Lid Release Lock Actuator

( Manufacturer Part Number: 78850-AM80B ), ( Fitment Year: 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 ), ( Fitment Type: Direct Replacement ), ( Items Included: No Item Included ), ( Vintage Part: Yes ), ( Placement On Vehicle: Front ), ( Fuel Type: Gasoline ), ( Type: Fuel Tank Filler Door Lid Release Lock Actuator ), ( Universal Fitment: No ), ( Country Of Origin: United States )

Review INFINITI Fuel Tank Filler Door Lid Release Lock Actuator fits EX35 2008–2017

The **Infiniti 78850-AM80B fuel tank filler door lid release lock actuator** is a precision-engineered component designed exclusively for the 2008 through 2017 model years of Infiniti s EX35 lineup, ensuring seamless operation of the fuel filler door mechanism. This actuator serves as the critical interface between the vehicle s electrical system and the physical door assembly, allowing the driver to securely lock and unlock the fuel filler lid with the push of a button or via remote control. Crafted from high-quality, corrosion-resistant materials, it is built to withstand the harsh environmental conditions commonly encountered in automotive applications, including exposure to moisture, dust, and temperature fluctuations. The actuator operates through a combination of electromagnetic force and mechanical linkage, delivering smooth, reliable engagement and disengagement of the door latch system. Its robust construction minimizes wear over time, reducing the likelihood of premature failure and ensuring consistent performance even after extensive use. This part is a direct replacement for the original equipment manufacturer (OEM) component, maintaining the same mounting dimensions, electrical connections, and functional specifications as the factory unit, guaranteeing a perfect fit and hassle-free installation. Whether replacing a worn-out actuator due to normal wear or addressing a malfunction caused by electrical issues or mechanical stress, this aftermarket part provides a dependable solution that restores full functionality to the fuel filler door, enhancing both convenience and safety for the vehicle s owner.

### **Pros and Cons of Buying a 2008 2017 Infiniti EX35 Fuel Tank Filler Door Lid Release Lock Actuator (Part # 78850-AM80B)**

1. **Direct Fitment** This is an OEM (Original Equipment Manufacturer) replacement part, meaning it is designed specifically for your Infiniti EX35 model. It should install without modifications and maintain proper functionality.

2. **Reliability** OEM parts are built to the same standards as factory components, ensuring durability and long-term performance.

3. **Warranty Coverage** Purchasing from a reputable dealer or authorized seller may include a warranty, providing peace of mind against defects.

4. **Prevents Further Damage** A faulty fuel filler door actuator can cause the door to remain open or fail to close properly, risking fuel spills or contamination. Replacing it ensures proper operation and safety.

5. **Easy Installation** Since it is a direct replacement, installation typically requires minimal tools and basic mechanical knowledge, though some users may prefer professional help.

1. **Cost** OEM parts can be more expensive than aftermarket alternatives, which may offer similar functionality at a lower price.

2. **Limited Availability** Depending on the seller, finding a genuine OEM part may require checking multiple sources, potentially increasing shipping time or costs.

3. **Potential Counterfeit Risks** If purchasing from an unverified seller, there is a risk of receiving a knockoff part that does not meet OEM specifications, leading to poor performance or failure.

4. **Labor Costs** While the part itself is straightforward, if you choose to have it installed by a professional, labor fees will add to the total expense.

5. **Age of the Vehicle** If your Infiniti EX35 is already older, other related components (such as wiring or the fuel door mechanism) may also be worn out, requiring additional repairs.

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### **Conclusion**

The **2008 2017 Infiniti EX35 Fuel Tank Filler Door Lid Release Lock Actuator (78850-AM80B)** is a reliable OEM replacement that ensures proper functionality and safety. While it may be pricier than aftermarket options, its direct fitment, durability, and warranty benefits make it a strong choice for those prioritizing quality and long-term performance. However, if budget is a concern, carefully researching aftermarket alternatives (while ensuring compatibility) could be a viable alternative.

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### **Recommendation**

- **If you value OEM quality and want a hassle-free replacement**, purchase the **78850-AM80B** from a trusted dealer (such as Infiniti, RockAuto, or an authorized parts supplier) to avoid counterfeit parts.

- **If cost is a major factor**, compare aftermarket options (e.g., from **Dorman, ACDelco, or local specialty shops**) while verifying reviews and compatibility.

- **Consider DIY installation** if you are comfortable with basic automotive repairs to save on labor costs.

- **Inspect the surrounding components** (wiring, door mechanism) during or after installation to ensure no related issues exist.

For the best results, **prioritize authenticity** and **follow installation guidelines** to maintain your vehicle s safety and performance.

Details:

Infiniti 2008 - 2012 EX35, 2013 EX37, 2014 - 2017 QX50, Fuel Tank Filler Door Lid Release Lock Actuator 78850-AM80B OEM 15592, Please match part numbers before buying, ITEM CONDITION USED / 78850-AM80BOEM 15592.

part #: 78850am80b prices

• $23.99-$38.65

specifications fueltanksysteme:

• for models: Ex35
• for makes: Infiniti
• for years: 2008-2017
• mpn: 78850-am80b
• fitment year: 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
• fitment type: Direct Replacement
• items included: No Item Included
• vintage part: Yes
• placement on vehicle: Front
• fuel type: Gasoline
• type: Fuel Tank Filler Door Lid Release Lock Actuator
• universal fitment: No
• country of origin: United States

offer fueltanksysteme:

• quantity: 1
• options: Ship-to-home
• sold: 0
• availability: In Stock
• best offers: True
• started: February 23, 2026

shipping fueltanksysteme:

• type: Fixed
• cost: $0.00
• class: Standard, Expedited
• service: USPS Ground Advantage, USPS Priority Mail
• carrier: USPS
• transit: 4-10 Days

returns fueltanksysteme:

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

general fueltanksysteme:

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

seller fueltanksysteme:

• city: Pearland, Texas
• # reviews: 324
• rating: 100.0%

payments fueltanksysteme:

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

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