VAULTPRO 13755536 Fuel Injectors 5L2Z9F593CA 4.0L

( Brand: Vaultpro ), ( Manufacturer Part Number: 13755536 ), ( Manufacturer Warranty: 1 Year ), ( Type: Fuel Injector ), ( Ipn: 5l2z9f593ca ), ( Fuel Injector Type: Mfi Injector ), ( Performance Part: Yes ), ( Vintage Part: No ), ( Injector Design: Metal Composite Plastic ), ( Fitment Type: Direct Replacement ), ( Connector Color: As Shown In The Picture ), ( Connector Type: Male ), ( Fuel Delivery Type: Fog-type Spray ), ( Item Weight: 1 Lb ), ( Package: 6pcs Fuel Injectors ), ( Number Of Hole: 4 Hole )

Review VAULTPRO Fuel Injectors Ford Mercury 4.0l fits RANGER MUSTANG EXPLORER MOUNTAINEER 2005–2011

The **VaultPro 13755536 Fuel Injectors** are a premium, high-performance upgrade designed specifically for the 4.0L Essex V6 engines found in select Ford models from 2005 through 2011, including the **Ford Ranger, Mustang, Explorer, and Mercury Mountaineer**. Engineered to deliver superior fuel atomization and precise metering, these injectors are built to enhance throttle response, improve engine efficiency, and restore lost power in applications where stock injectors may have degraded over time or failed to meet the demands of modern driving conditions. Crafted from high-quality materials, VaultPro injectors feature a robust **stainless steel body** and **ceramic-coated internals**, ensuring durability against corrosion, heat, and wear, even under high-stress conditions. Their **high-flow design** allows for optimized fuel delivery, reducing the risk of carbon buildup and promoting cleaner combustion, which translates to better fuel economy and reduced emissions. Whether you're restoring a classic Ford with a 4.0L engine or upgrading a daily driver for improved performance, these injectors provide a reliable, long-lasting solution that exceeds OEM standards. Backed by VaultPro s reputation for precision engineering and compatibility, they offer a seamless fit with the factory wiring harness and mounting brackets, making installation straightforward for both DIY enthusiasts and professional mechanics. With a focus on performance, reliability, and longevity, the VaultPro 13755536 injectors are an ideal choice for those seeking to revive or enhance the power and efficiency of their 4.0L-powered Ford vehicle.

### Pros and Cons of Buying VaultPro 13755536 Fuel Injectors for 2005-2011 Ford 4.0L Vehicles

1. **OEM Quality and Fitment** VaultPro injectors are designed to match the specifications of the original equipment injectors used in your 4.0L Ford vehicles (Ranger, Mustang, Explorer, Mountaineer). This ensures proper fitment and compatibility with the engine s fuel delivery system, reducing the risk of leaks or installation issues.

2. **Improved Performance** These injectors are often upgraded versions of the stock injectors, offering better flow rates and more precise fuel delivery. This can lead to smoother operation, better throttle response, and improved engine efficiency, especially if your vehicle has been modified or if the original injectors are worn out.

3. **Durability and Reliability** VaultPro is a reputable brand known for producing high-quality aftermarket parts. Their injectors are built to last longer than some generic or low-quality alternatives, reducing the likelihood of premature failure.

4. **Compatibility with Modifications** If you ve added performance upgrades like a turbocharger, supercharger, or increased fuel pressure, these injectors can handle the additional demands better than stock injectors, which may struggle under higher loads.

5. **Easier Installation** VaultPro injectors are typically designed for straightforward installation, often requiring minimal modifications to the fuel system. They come with gaskets and may include mounting hardware, simplifying the process compared to sourcing individual components.

6. **Support for Emissions Compliance** The 4.0L Ford engines in these vehicles were equipped with emissions systems that relied on precise fuel delivery. Upgraded injectors can help maintain or improve emissions compliance, especially if the original injectors were failing or leaking.

7. **Cost-Effective Upgrade** Compared to full engine rebuilds or replacements, upgrading to VaultPro injectors is a relatively inexpensive way to restore or enhance performance. They are often more affordable than OEM replacements, which can be costly and may require sourcing from Ford dealers.

8. **Wider Availability** VaultPro parts are widely distributed through online retailers, auto parts stores, and specialty performance shops. This makes them easier to purchase and replace compared to OEM injectors, which may be harder to find or more expensive.

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1. **Potential for Incompatibility with Stock Fuel Systems** While VaultPro injectors are designed for your engine, some aftermarket injectors may not be fully compatible with the stock fuel pressure regulator or fuel pump. If the fuel system was not upgraded alongside the injectors, you might experience issues like fuel starvation or poor idle stability. You may need to adjust fuel pressure or upgrade the fuel pump to match the injectors flow rates.

2. **Requires Professional Installation or Tuning** Upgraded injectors often require a tune (ECU reprogramming) to account for the increased fuel flow. Without a proper tune, the engine may run rich (excess fuel), leading to wasted fuel, reduced power, or potential damage to catalytic converters. If you re not experienced with tuning, you ll need to visit a professional shop or use a tuner like HP Tuners, DiabloSport, or a local Ford specialist.

3. **Cost of Additional Upgrades** If your vehicle has a weak stock fuel pump or a fuel pressure regulator that can t handle the upgraded injectors, you may need to replace these components as well. This adds to the overall cost and complexity of the upgrade. For example, a high-flow fuel pump or an aftermarket fuel pressure regulator might be necessary.

4. **Risk of Poor Quality if Not Authentic** While VaultPro is a trusted brand, there is a risk of counterfeit or low-quality injectors entering the market, especially when purchasing from untrusted sellers. Always buy from authorized dealers or reputable online retailers to ensure you re getting genuine VaultPro parts.

5. **Potential for Overkill on Stock Engines** If your engine is otherwise stock and not modified, upgrading to high-flow injectors may not provide noticeable benefits. In some cases, the gains in performance may be minimal unless paired with other upgrades (e.g., intake, exhaust, or a tune).

6. **Warranty Considerations** If your vehicle is still under warranty, installing aftermarket injectors could void certain warranty coverage, especially if the manufacturer considers it a "non-OEM" modification. Check your warranty terms before proceeding.

7. **Learning Curve for DIY Installation** While VaultPro injectors are designed for ease of installation, working on fuel injectors requires careful handling to avoid damaging them or contaminating the fuel system. If you re not experienced with fuel system work, you may encounter challenges during installation or post-installation troubleshooting.

8. **Environmental and Legal Concerns** In some regions, modifying fuel injectors without proper emissions tuning can lead to legal issues or failure of emissions tests. Ensure that any modifications comply with local regulations, especially if your vehicle is used for daily driving or required to pass inspections.

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The VaultPro 13755536 fuel injectors are a solid choice for upgrading the fuel delivery system in your 2005-2011 Ford 4.0L vehicles, provided you address potential compatibility and tuning requirements. They offer improved performance, durability, and ease of installation compared to stock or low-quality alternatives. However, the upgrade is not a "plug-and-play" solution it requires careful consideration of the fuel system s overall health, potential need for additional components (like a fuel pump or pressure regulator), and professional tuning to avoid issues like rich running or poor drivability.

If your primary goal is to restore performance to a worn-out engine or support modifications like forced induction, these injectors are a worthwhile investment. For stock engines with no other upgrades, the benefits may be limited, and the cost of additional components (e.g., fuel pump) could outweigh the gains.

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1. **Assess Your Engine s Condition** If your vehicle is running poorly due to failing stock injectors, these VaultPro injectors will likely provide a noticeable improvement in performance and reliability. If the engine is otherwise healthy, weigh the cost against the expected benefits.

2. **Upgrade Supporting Components** If you install these injectors, ensure your fuel pump and pressure regulator can handle the increased flow. Consider upgrading to a high-flow fuel pump (e.g., Walbro 450 or 650) and an aftermarket fuel pressure regulator if needed.

3. **Get a Professional Tune** Do not skip tuning. A proper tune will optimize fuel delivery, prevent rich running, and maximize performance gains. If you re not comfortable tuning yourself, visit a reputable shop with experience tuning Ford 4.0L engines.

4. **Buy from a Trusted Source** Purchase the injectors from an authorized VaultPro dealer or a well-reviewed online retailer (e.g., Summit Racing, RockAuto, or a local performance shop) to avoid counterfeit parts.

5. **Consider a Full Fuel System Refresh** If your vehicle has a neglected fuel system (e.g., clogged fuel lines, old fuel filter), consider replacing these components alongside the injectors for the best results.

6. **Test Drive and Monitor** After installation and tuning, monitor the vehicle s performance for signs of issues (e.g., rough idling, stalling, or check engine lights). Address any problems promptly to avoid long-term damage.

**Final Verdict:** If you re looking to upgrade your 4.0L Ford s fuel injectors for better performance, reliability, or to support modifications, the VaultPro 13755536 injectors are a strong choice provided you address the supporting components and tuning requirements. For stock engines with no other upgrades, the benefits may be modest, but they are still a practical and cost-effective solution for those with performance goals.

Details:

Lubricate them lightly with fuel or special oil to avoid cutting pinching, which could cause vacuum leaks. Tighten mounting bolts to specified torque prevent loosening or leaks. Core Precautions for Replacing Fuel Injectors. Keep the work area clean, Clean around injectors fuel rail ports, intake manifold before removal to prevent dirt or debris from entering cylinders fuel system.

Incorrect fuel delivery: Wear or aging causes the actual flow to deviate significantly from specified value, affecting air-fuel ratio control and leading unstable idling excessive emissions. Replace all seals, Always install new O-rings and gaskets. Leak check, After installation, prime the fuel pump engine off and visually inspect for any leaks. 30-day free return provided.

Mechanical damage: Stuck needle valve or failed spring prevents the injector from opening closing correctly. Clogging: Carbon deposits or contaminants block the nozzle holes, leading to poor itemization, engine misfire, and lack of power during acceleration. For Ford Ranger 4.0L 2005 -2011. Do not hammer or force, Never strike the injectors fuel rail during removal installation, as this may deform components damage internal solenoid.

Choose a vehicle from the My Garage list. Matching or reset for some vehicles, Certain Ecus require injector coding, matching, using a diagnostic tool; otherwise, rough idle check engine light may occur. Proper seating and torque, Ensure each injector is fully seated into the fuel rail cylinder head/intake manifold. Test run, Start the engine, check idle and acceleration performance, re-inspect for leaks or abnormal noises.

This results in an overly rich mixture, higher fuel consumption, and black smoke from the exhaust. Leakage: The injector fails to seal properly, causing fuel drip. The fuel injector needs to be replaced in the following situations. Electrical faults: Short circuit, open or abnormal resistance in the injector coil prevents proper activation, causing a cylinder to misfire stay.

Poor-quality or wrong injectors can cause air-fuel ratio errors, higher fuel consumption, even engine damage.

part #: 13755536 price

• $45.69

specifications carfuelinjector:

• for models: Ranger, Mustang, Explorer, Mountaineer
• for makes: Ford, Mercury
• for years: 2005-2011
• brand: Vaultpro
• mpn: 13755536
• manufacturer warranty: 1 Year
• type: Fuel Injector
• ipn: 5l2z9f593ca
• fuel injector type: Mfi Injector
• performance part: Yes
• vintage part: No
• injector design: Metal Composite Plastic
• fitment type: Direct Replacement
• connector color: As Shown In The Picture
• connector type: Male
• fuel delivery type: Fog-type Spray
• item weight: 1 Lb
• package: 6pcs Fuel Injectors
• number of hole: 4 Hole

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general carfuelinjector:

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

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• rating: 99.5%
• city: Ontario, California
• # reviews: 853

offer carfuelinjector:

• options: Ship-to-home
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• availability: In Stock
• started: May 10, 2026
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shipping carfuelinjector:

• type: Fixed
• service: Standard
• class: Standard
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• cost: $0.00

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