FORD 0445118057 Powerstroke Diesel Engine Fuel Injector 6.7L LC3Q-9K546-AD

( Manufacturer Part Number: 0445118057 ), ( Type: Direct ), ( Manufacturer Warranty: Othet ), ( Oe/oem Part Number: Lc3q-9k546-ad ), ( Fitment Type: Direct Replacement ), ( Country Of Origin: United States ), ( Modified Item: No ), ( Fuel Type: Diesel )

Review FORD Powerstroke 6.7l Diesel Engine Fuel Injector Oem

The **Ford 0445118057 PowerStroke 6.7L Diesel Engine LC3Q-9K546-AD Fuel Injector** is a precision-engineered component designed exclusively for Ford s legendary 6.7L PowerStroke diesel engines, specifically tailored for the **2011 2014 F-250, F-350, and F-450 Super Duty trucks** equipped with the **6.7L Power Stroke Turbo Diesel (PSTD)**. This high-performance fuel injector is a critical part of the **Common Rail Direct Injection (CRDI)** system, delivering fuel with unmatched precision and efficiency to optimize combustion, reduce emissions, and maximize power output. Crafted from durable materials, including a robust **stainless steel body and hardened components**, this injector is built to withstand the extreme pressures (up to **25,000 psi**) and temperatures encountered in high-performance diesel applications, ensuring long-lasting reliability even under the most demanding conditions. The **LC3Q-9K546-AD** designation indicates its compatibility with the **2011 2014 model year engines**, making it a direct replacement for the original equipment manufacturer (OEM) part, eliminating the need for modifications or additional adapters. Engineered with **advanced solenoid technology**, this injector provides rapid and consistent fuel delivery, enhancing throttle response, torque, and overall engine performance while minimizing fuel consumption and harmful emissions. Whether used in a daily driver, a heavy-duty work truck, or a performance-focused diesel application, this injector ensures smooth operation, reduced carbon buildup, and extended engine life by maintaining optimal fuel atomization and combustion efficiency. For owners seeking to restore factory performance or upgrade their engine s fueling system, the **Ford 0445118057 PowerStroke 6.7L Fuel Injector** represents a high-quality, OEM-spec solution that delivers both reliability and performance.

### **Pros and Cons of buying a Ford 0445118057 PowerStroke 6.7L Diesel Engine (LC3Q-9K546-AD Fuel Injector)**

#### **Pros**

1. **Compatibility and Reliability** The 6.7L PowerStroke engine (2003 2010 models) is a well-known, durable diesel platform with a strong aftermarket support system. The LC3Q-9K546-AD fuel injector is a common replacement part, meaning it is widely available and easier to source than OEM-only components.

2. **Performance Potential** With the right modifications (turbo upgrades, fuel system tuning, or upgraded injectors), this engine can deliver strong power output, making it suitable for towing and heavy-duty applications. The fuel injector in question is designed to improve fuel delivery efficiency, which can enhance performance and fuel economy under the right conditions.

3. **Cost-Effective Replacement** Compared to OEM injectors, aftermarket or remanufactured versions (like the one listed) are often significantly cheaper, reducing repair costs for owners dealing with injector failures a common issue in older PowerStroke engines.

4. **Ease of Installation** The LC3Q-9K546-AD injector is a direct drop-in replacement for the original 6.7L injectors, meaning no major modifications are required for installation. This makes it a straightforward upgrade for DIY mechanics or shops with basic diesel knowledge.

5. **Fuel Efficiency Improvements** If the original injectors were failing or spraying improperly, replacing them with a high-quality injector (such as the one listed) can restore proper fuel atomization, leading to better combustion and improved fuel efficiency.

6. **Warranty and Quality (If Purchased from a Reputable Source)** Some aftermarket or remanufactured injectors come with warranties, providing peace of mind against premature failure. Ensure the seller offers a warranty to mitigate risks.

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#### **Cons**

1. **Potential for Counterfeit or Low-Quality Parts** The aftermarket for diesel injectors can be saturated with knockoffs or poorly remanufactured parts. If the injector is not from a trusted brand (e.g., Stanadyne, Delphi, or a well-reviewed remanufacturer), it may fail prematurely, leading to further engine damage if fuel delivery is inconsistent.

2. **Compatibility Risks** While the LC3Q-9K546-AD is designed for the 6.7L PowerStroke, slight variations in fuel rail pressure or injector coding can cause issues if the part is not an exact match. Always verify the part number and application before purchasing.

3. **Common Injector Failures in 6.7L Engines** The 6.7L PowerStroke is notorious for injector failures due to carbon buildup, poor fuel quality, or electrical issues. Even a "new" injector may not solve underlying problems if the rest of the fuel system (pump, rails, filters) is neglected.

4. **Cost of Associated Repairs** Replacing injectors often requires additional work, such as cleaning or replacing fuel rails, solenoids, or the high-pressure fuel pump. These extra costs can add up quickly, making the initial injector replacement a more expensive project than anticipated.

5. **Limited Longevity Without Maintenance** Diesel engines, including the 6.7L, require regular maintenance (fuel system cleaning, injector testing, and proper fuel treatment) to prevent injector clogging or failure. Skipping maintenance can nullify the benefits of a new injector.

6. **Potential for Overpaying** Some sellers may inflate prices for "new" or "remanufactured" injectors. Researching market prices and comparing options (e.g., eBay, RockAuto, or specialty diesel shops) can help avoid overpaying.

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### **Conclusion**

The Ford 0445118057 6.7L PowerStroke fuel injector (LC3Q-9K546-AD) is a practical and cost-effective solution for restoring or upgrading fuel delivery in a 2003 2010 Ford F-Series with the 6.7L engine. It offers improved performance, better fuel efficiency, and compatibility with aftermarket upgrades. However, the risks of purchasing a low-quality or counterfeit part, along with the potential for hidden repair costs, cannot be ignored.

If you proceed with this purchase, prioritize buying from a reputable seller with a warranty, verify the part number matches your engine s specifications, and ensure the rest of the fuel system (rails, pump, filters) is in good condition. Additionally, consider investing in fuel additives or regular maintenance to extend the life of the injectors.

---

### **Recommendation**

1. **Verify the Part Number and Application** Double-check that the LC3Q-9K546-AD injector is compatible with your specific engine build year and trim. Some injectors may have slight variations in coding or pressure ratings.

2. **Purchase from a Trusted Source** Opt for injectors from well-known brands (Stanadyne, Delphi, or reputable remanufacturers) or established online retailers with good reviews. Avoid suspiciously cheap listings that may indicate counterfeit parts.

3. **Inspect the Fuel System** Before installing the new injector, ensure the fuel rails, high-pressure fuel pump, and fuel filters are clean and functional. A clogged rail or failing pump can negate the benefits of a new injector.

4. **Consider Professional Installation** If you lack experience with diesel fuel systems, have a trusted mechanic install the injector to avoid misalignment or improper sealing, which could lead to leaks or performance issues.

5. **Monitor Performance Post-Installation** After replacing the injector, monitor for signs of improved fuel economy, smoother operation, or warning lights. If issues persist, the injector may not be the sole problem, or it could be a low-quality part.

6. **Budget for Additional Maintenance** Allocate funds for fuel system cleaning, injector testing (via a scan tool or diesel diagnostic service), and potential upgrades (e.g., better fuel filters, additives) to maximize the injector s lifespan.

**Final Verdict:** The LC3Q-9K546-AD injector is a worthwhile upgrade for the right buyer one who prioritizes quality, compatibility, and maintenance. For those on a tight budget or dealing with a heavily neglected engine, weigh the risks carefully and consider a full fuel system overhaul alongside the injector replacement.

Details:

Ford Powerstroke 6.7L Diesel Engine LC3Q-9K546-AD Fuel Injector OEM.

part #: 0445118057 prices

• $103.50-$287.38

specifications carfuelinjector:

• for makes: Ford
• mpn: 0445118057
• type: Direct
• manufacturer warranty: Othet
• oe/oem part number: Lc3q-9k546-ad
• fitment type: Direct Replacement
• country of origin: United States
• modified item: No
• fuel type: Diesel

offer carfuelinjector:

• sold: 0
• started: March 31, 2026
• quantity: 8
• options: Ship-to-home
• availability: In Stock

seller carfuelinjector:

• # reviews: 15280
• city: Lees Summit, Missouri
• rating: 99.8%

returns carfuelinjector:

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

shipping carfuelinjector:

• carrier: USPS
• type: Calculated
• transit: 3-7 Days
• service: USPS Ground Advantage
• class: Standard
• cost: $0.00

payments carfuelinjector:

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

general carfuelinjector:

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

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