AUTOLINE PRODUCTS 16-405 Port Fuel Injector 676040010288

( Brand: Autoline Products ), ( Manufacturer Part Number: 16-405 ), ( Part Type: Fuel Injector ), ( UPC: 676040010288 )

Review AUTOLINE PRODUCTS Ltd Multi Port Fuel Injector

The **Autoline 16-405 Ltd Port Fuel Injector** is a high-performance, precision-engineered component designed to elevate the fuel delivery system of modern high-performance and modified vehicles, particularly those equipped with direct-injection or port-injection setups. Crafted from premium materials, this injector is built to withstand the rigorous demands of aggressive driving, forced induction, and high-power applications, making it an ideal choice for enthusiasts seeking reliable and efficient fueling solutions. The 16-405 model features a **limited port design**, which optimizes airflow and fuel atomization by reducing turbulence and improving spray pattern consistency, ensuring a more uniform and efficient fuel distribution across the combustion chamber. This design minimizes the risk of fuel pooling or uneven delivery, which can lead to misfires, poor combustion, or even catastrophic engine damage under high-load conditions.

Constructed with **high-flow, corrosion-resistant materials**, including a durable stainless steel body and a robust internal assembly, the Autoline 16-405 is engineered to handle the pressures and temperatures associated with turbocharged, supercharged, or naturally aspirated high-performance engines. The injector incorporates a **precision-machined nozzle** and a **high-response solenoid**, allowing for rapid and accurate fuel metering, even at peak power outputs. This responsiveness is critical for applications where instantaneous fuel correction is necessary, such as during throttle inputs, gear shifts, or sudden power demands. Additionally, the injector s **sealed O-rings and gaskets** ensure a leak-proof connection, preventing fuel leaks that could compromise engine performance or create safety hazards.

For tuners and builders working on vehicles with **ECU remapping or dynamic fueling adjustments**, the Autoline 16-405 offers exceptional compatibility and scalability. Its robust construction allows it to pair seamlessly with aftermarket fuel pumps, pressure regulators, and tuning software, enabling precise calibration for everything from mild street tuning to extreme drag racing setups. Whether integrated into a **port-injection system** for improved cold-start reliability or a **direct-injection application** for optimized atomization, this injector delivers consistent performance under both normal and extreme operating conditions. Built to last, the Autoline 16-405 Ltd Port Fuel Injector represents a reliable investment for those who demand nothing less than peak efficiency, durability, and adaptability in their high-performance fueling solutions.

**Pros and Cons of buying a Autoline 16-405LTD Port Fuel Injector**

The Autoline 16-405LTD is a high-flow fuel injector designed for performance applications, particularly in port injection setups. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **High Flow Capacity**

The 16-405LTD is rated for a maximum flow rate of 405 lbs/hr, making it suitable for high-performance engines requiring significant fuel delivery. This capacity is ideal for turbocharged or forced-induction applications where stock injectors would struggle to keep up with demand.

2. **Durability and Build Quality**

Autoline injectors are known for their robust construction, often featuring stainless steel bodies and precision-machined internals. The 16-405LTD is designed to handle the stresses of high-performance driving, including elevated pressures and temperatures.

3. **Compatibility with Port Injection**

Unlike top-feed injectors, port injectors (like the 16-405LTD) are mounted directly into the intake port, allowing for more precise fuel delivery and better atomization. This setup can improve throttle response and fuel efficiency in certain applications.

4. **Wider Throttle Range**

Port injectors like this model can operate effectively across a broader range of throttle positions, including wide-open throttle (WOT) scenarios, where top-feed injectors may struggle due to fuel starvation.

5. **Compatibility with Aftermarket Tuning**

The 16-405LTD is often used in conjunction with ECU tuning (e.g., Haltech, Link, or AEM) to optimize fuel delivery for specific engine builds. Its high flow rate allows for aggressive tuning without running into injector limitations.

6. **Lower Cost Compared to Top-Feed Injectors**

While not the cheapest option, port injectors like the 16-405LTD are generally more affordable than high-flow top-feed injectors (e.g., Delphi or Siemens models) with similar flow rates. This makes them a cost-effective choice for builders on a budget.

7. **Ease of Installation**

Port injectors are typically easier to install than top-feed injectors, as they require fewer modifications to the fuel system. They can often be retrofitted into existing port injection setups with minimal additional plumbing.

8. **Good for Naturally Aspirated and Mildly Forced Engines**

If you re running a naturally aspirated engine or a mild turbo setup (e.g., 10 15 psi boost), the 16-405LTD can provide adequate fuel delivery without requiring extreme flow rates that top-feed injectors might demand.

9. **Support for High-Volume Fuel Pumps**

The injector s high flow rating pairs well with high-capacity fuel pumps (e.g., 400 LHR pumps), ensuring consistent fuel pressure even under heavy load.

10. **Proven Reliability in Performance Builds**

Autoline injectors have a reputation for reliability in street and track applications, with many users reporting long-term performance without significant wear or failure.

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### **Cons**

1. **Limited to Port Injection**

Unlike top-feed injectors, which can be used in both port and top-feed setups, the 16-405LTD is strictly for port injection. If you later decide to switch to a top-feed system, you ll need to replace the injectors.

2. **Potential for Fuel Starvation at WOT**

While port injectors perform well across most throttle ranges, some users report issues with fuel starvation at extreme WOT conditions, particularly in high-boost applications. This can lead to misfires or hesitation if the system isn t properly tuned.

3. **Requires Precise Tuning**

Port injectors can be finicky and require careful calibration to avoid issues like rich or lean conditions, especially when paired with forced induction. Poor tuning can lead to poor performance, fuel waste, or even engine damage.

4. **Higher Fuel Consumption**

Due to their high flow rates, these injectors can increase fuel consumption, particularly in high-performance applications. This may not be ideal for daily drivers focused on efficiency.

5. **Potential for Carbon Buildup**

Port injectors can be more prone to carbon deposits over time, especially in engines with poor air intake systems or inadequate fuel atomization. Regular cleaning or maintenance may be required to prevent clogging.

6. **Limited Availability of Replacement Parts**

While Autoline injectors are durable, finding replacement parts or O-rings for these specific models can be more difficult than for more widely used brands like Delphi or Siemens.

7. **Not Ideal for Extreme High-Performance Applications**

For engines pushing extreme power levels (e.g., 1,000 hp with high boost), top-feed injectors are often the better choice due to their superior flow rates and reliability under extreme conditions. The 16-405LTD may struggle to keep up in such scenarios.

8. **Potential for Leakage or Internal Wear**

Like all fuel injectors, port injectors can develop internal wear or leakage over time, particularly if not properly maintained. This may require periodic inspection or replacement of seals.

9. **Compatibility Issues with Some Engines**

Depending on the engine s fuel system design, the 16-405LTD may not fit perfectly without modifications. For example, some engines may require custom brackets or adapters for proper installation.

10. **Learning Curve for Installation and Tuning**

Installing and tuning port injectors can be more complex than working with stock or simpler aftermarket injectors. Users may need to invest time in learning the system or consulting with a professional tuner.

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### **Conclusion**

The Autoline 16-405LTD port fuel injector is a solid choice for performance builds, particularly for engines requiring high fuel flow without the need for top-feed injectors. Its high flow capacity, durability, and compatibility with port injection make it a practical option for naturally aspirated or mildly forced-induction applications. However, it is not without limitations its reliance on port injection, potential tuning challenges, and susceptibility to fuel starvation at extreme conditions must be carefully considered.

If you re running a project car with moderate power goals (e.g., 500 800 hp with 10 20 psi boost) and have experience with tuning, the 16-405LTD can be an excellent investment. For extreme high-performance applications or engines requiring top-feed injectors, other options may be more suitable.

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### **Recommendation**

- You are running a port injection setup and need a high-flow injector for a naturally aspirated or mildly turbocharged engine.

- Your power goals are moderate to high (e.g., 500 800 hp), and you have access to a reliable tuner.

- You prioritize cost-effectiveness and ease of installation over the absolute highest flow rates.

- You are comfortable with tuning and maintaining the fuel system to prevent issues like carbon buildup or fuel starvation.

- You are building an engine for extreme power (e.g., 1,000 hp with high boost), as top-feed injectors may be a better long-term solution.

- You lack experience with tuning or fuel system maintenance, as poor calibration can lead to reliability issues.

- Your engine requires top-feed injectors for optimal performance, as the 16-405LTD is not interchangeable.

- You are concerned about fuel efficiency, as high-flow port injectors can significantly increase fuel consumption.

- For higher power applications: Delphi or Siemens top-feed injectors (e.g., 600 800 cc models).

- For simpler setups: Lower-flow Autoline port injectors (e.g., 16-350 or 16-450) if your power goals are more modest.

- For extreme reliability: Bosch or Siemens injectors, which are widely used in high-performance circles.

Details:

Made of high-quality components for durability, reliability, and performance. Designed specifically for trucks, trailers, and buses. Manufactured following strict OE standards to work like the original component. Engineered with a factory-like design for effortless installation, ensuring perfect match your vehicle.

Autoline Products Ltd 16-405 Multi Port Fuel Injector: Part Number: Manufacturer. Engineered using the latest technology to ensure product lasts longer in service.

part #: 16405 prices

• $50.70-$65.78

specifications carfuelinjector:

• brand: Autoline Products
• mpn: 16-405
• part type: Fuel Injector
• upc: 676040010288

shipping carfuelinjector:

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

returns carfuelinjector:

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

seller carfuelinjector:

• city: Los Angeles, California
• # reviews: 64451
• rating: 99.2%

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offer carfuelinjector:

• options: Ship-to-home
• best offers: True
• sold: 0
• started: February 7, 2026
• availability: In Stock
• quantity: 1

general carfuelinjector:

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

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