4UMOTOR 12681500 Fuel Injectors 3.5L 842-12380

( Brand: 4umotor ), ( Manufacturer Part Number: 12681500 ), ( Type: Fuel Injector ), ( Fuel Type: Gasoline ), ( Fitment Type: Direct Replacement ), ( Oe/oem Part Number: 23209-0p010 ), ( Items Included: O-ring ), ( Performance Part: Yes ), ( Connector Color: As Shown ), ( Manufacturer Warranty: 1 Year ), ( Connector Type: Male ), ( Vintage Part: No ), ( Placement On Vehicle: Front )

Review 4UMOTOR Pcs Fuel Injectors Toyota 3.5l fits HIGHLANDER SIENNA 2011–2016

The **4UMotor 12681500 set of 4 fuel injectors** is a meticulously engineered, high-performance replacement designed to restore optimal fuel delivery and engine efficiency for the **2011 2016 Toyota Highlander and Sienna models** equipped with the **3.5L V6 (842-12380) engine**. These precision-machined injectors are built to meet or exceed OEM specifications, ensuring seamless compatibility with the vehicle s fuel injection system while delivering superior atomization and consistent spray patterns. Crafted from high-grade materials, including durable stainless steel and corrosion-resistant coatings, these injectors are engineered to withstand the demands of modern fuel systems, including ethanol-blended fuels, without clogging or degrading over time. Each injector features a **high-flow design** optimized for the 3.5L V6 s power requirements, providing enhanced throttle response, smoother acceleration, and improved fuel economy critical for maintaining the Highlander or Sienna s performance and reliability. The **direct-fit installation** eliminates the need for additional adapters or modifications, making them an ideal drop-in solution for both routine maintenance and performance upgrades. Whether replacing worn-out OEM injectors or upgrading to a more robust alternative, these injectors offer a balance of durability, precision, and performance, ensuring your vehicle runs with the efficiency and power it was originally engineered for. Built to last, they are a trusted choice for mechanics and enthusiasts alike seeking long-term reliability in their Toyota s fuel delivery system.

### Pros and Cons of Buying 4UMotor 12681500 (4-Piece Fuel Injectors) for 2011 2016 Toyota Highlander/Sienna (3.5L V6)

1. **Compatibility** The 4UMotor injectors are designed specifically for the 3GR-FE engine found in the 2011 2016 Toyota Highlander and Sienna, ensuring a proper fit and function.

2. **OEM Quality** 4UMotor is a reputable aftermarket brand that often matches or exceeds OEM standards in terms of build quality, durability, and performance.

3. **Cost-Effective Alternative** Compared to purchasing genuine Toyota injectors, these aftermarket options are significantly cheaper while still providing reliable performance.

4. **Improved Fuel Efficiency** If the original injectors were clogged or failing, replacing them with new ones can restore proper fuel delivery, leading to better fuel economy and engine performance.

5. **Preventative Maintenance** Installing new injectors as part of routine maintenance can prevent costly engine damage caused by poor fuel atomization or misfires.

6. **Warranty Coverage** 4UMotor typically offers a warranty (usually 12 24 months), providing some protection against defects or premature failure.

7. **Ease of Installation** These injectors are designed to be drop-in replacements, making installation straightforward for those with mechanical experience or when installed by a professional.

1. **Mixed Quality Reports** While 4UMotor is generally reliable, some users report inconsistent quality, with occasional issues like leaks, poor spray patterns, or early failure, especially if the injectors are not properly matched to the engine s requirements.

2. **Potential for Clogging** If the fuel system (fuel filter, fuel lines, or fuel pump) is dirty or degraded, new injectors may clog prematurely, requiring additional maintenance.

3. **No Direct Toyota Support** Unlike OEM parts, 4UMotor does not have Toyota s backing, meaning warranty claims or replacements may be more difficult to process if issues arise.

4. **Installation Risks** Improper installation (e.g., incorrect O-rings, improper torque, or cross-threading) can lead to leaks or damage to the fuel rail or injectors themselves.

5. **Limited Long-Term Data** While many users report no issues, there is less long-term data compared to OEM parts, so durability over 100,000 miles is harder to predict.

6. **Compatibility Variations** Some users have noted that while these injectors fit, slight variations in spray patterns or flow rates may exist compared to Toyota s original injectors, potentially affecting drivability or emissions.

7. **Fuel Quality Dependency** Poor-quality fuel (e.g., ethanol blends with additives) can accelerate wear on injectors, reducing their lifespan regardless of brand.

---

### **Conclusion**

The **4UMotor 12681500 fuel injectors** are a **viable and cost-effective choice** for replacing worn or failing injectors in your 2011 2016 Toyota Highlander/Sienna 3.5L engine. They offer **OEM-like performance at a fraction of the cost**, making them a practical option for most owners who prioritize reliability and budget. However, they are **not without risks**, particularly if the rest of the fuel system (filter, pump, fuel lines) is neglected or if installation is not done correctly.

- A **high-quality fuel filter** (e.g., WIX or Mann).

- **Clean fuel lines** (or replacement if degraded).

- **Proper installation** (preferably by a professional).

- **High-quality fuel** (avoiding cheap or heavily ethanol-blended gasoline).

If **long-term reliability and warranty support** are critical, OEM Toyota injectors may be worth the higher cost, though they are significantly more expensive.

---

### **Recommendation**

- You are on a budget and need a reliable aftermarket option.

- You plan to maintain the rest of the fuel system properly.

- You are comfortable with installation or have a trusted mechanic perform it.

- You are not running extreme modifications (e.g., forced induction) that could stress the injectors beyond their rated capacity.

- You prioritize **maximum longevity and warranty coverage**.

- You notice **early signs of injector failure** (e.g., rough idle, poor acceleration, check engine lights) and want the most durable solution.

- You are running **high-performance modifications** that may require premium injectors.

**Final Verdict:** For most **stock or lightly modified** 2011 2016 Highlander/Sienna owners, the **4UMotor injectors are a solid, budget-friendly choice** when paired with good maintenance practices. However, always **verify recent reviews** (from sources like **Reddit, Toyota forums, or trusted mechanics**) before purchasing, as aftermarket part quality can vary by batch.

Details:

How To Replace a Fuel Injectors. Want to know when will us start a sale. Other question or problem. Cannot work after install the parts.

Please confirm the compatible chart before placing order. Reinstall all of the connectors and clips that hold fuel rail in place. Cannot confirm the size or color of this item. New List Item.

Package Include. Wiggle the injectors gently until they pop out. Let your car cool down and disconnect the battery. 6 Pcs Fuel Injectors For 2011 2016 Toyota Highlander Sienna 3.5L 842-12380 Fitment.

Use pliers to remove the Old Fuel injector connectors on fuel rail. 1 Set Fuel Injectors Quantity as shown. Arrived damaged. Arrived wrong part.

Condition: New Type: Fuel Injectors Color: As Shown Installation: Direct Replacement Manufacturer Warranty 1 Years Mounting Hardware Included: Yes. Start the car. Unlock the fuel rail using a socket wrench or screwdriver. Don't know what kind of part your vehicle need to change.

USPS: USA Postal Service. Slide the new injectors into their slots on fuel rail. The simple installation steps are only for reference. Locate the fuel injectors on your intake manifold.

Need a return. Dip the tip of each new injector in a small cup gasoline. Inspect the engine for leaks after letting your cycle. Line the injectors into corresponding holes on engine.

UPS:United Parcel Service.

part #: 12681500 prices

• $34.43-$76.49

specifications carfuelinjector:

• for models: Highlander, Sienna
• for makes: Toyota
• for years: 2011-2016
• brand: 4umotor
• mpn: 12681500
• type: Fuel Injector
• fuel type: Gasoline
• fitment type: Direct Replacement
• oe/oem part number: 23209-0p010
• items included: O-ring
• performance part: Yes
• connector color: As Shown
• manufacturer warranty: 1 Year
• connector type: Male
• vintage part: No
• placement on vehicle: Front

offer carfuelinjector:

• best offers: True
• options: Ship-to-home
• started: April 13, 2026
• sold: 0
• availability: In Stock

shipping carfuelinjector:

• cost: $0.00
• service: FedEx Ground Economy
• carrier: FedEx
• type: Fixed
• class: Economy
• transit: 3-8 Days

payments carfuelinjector:

• credit card: Visa
• other
• wallet: Google-pay

returns carfuelinjector:

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

seller carfuelinjector:

• city: Ontario, California
• # reviews: 6347
• rating: 99.2%

general carfuelinjector:

• condition: New
• Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors

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