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  3. MAXPEEDINGRODS 6DPITE

MAXPEEDINGRODS 6DPITE Fuel Injectors 6X 4HOLE 4.0L

fits model: Explorer, Mountaineer. make: Ford, Mercury. year: 1999–2001.

6dpite Maxpeedingrods 6x 4hole Fuel Injectors For Ford Explorer Mercury Mountaineer 4.0l 99-01

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 6DPITE ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Country Of Origin: China ), ( Fitment: For Ford Explorer 4.0l V6 1999-2001, For Mercury Mountaineer 4.0l V6 1999-2001 ), ( Fuel Type: Gasoline ), ( Items Included: O-ring ), ( Oe/oem Part Number: 0280155900, Xl2z9f593aa, Cm4903, 822-11135, Cb15037801s ), ( Performance Part: Yes ), ( Type: Fuel Injector ), ( Universal Fitment: No ), ( Important Note: 100 New Alternator, Not Refurbished )

Review MAXPEEDINGRODS 6x 4hole Fuel Injectors Ford Mercury 4.0l fits EXPLORER MOUNTAINEER 1999–2001

The **Maxpeeding Rods 6DPITE 6x 4-Hole Fuel Injectors** are a high-performance upgrade designed specifically for Ford s 4.0L Essex V6 engines found in the **1999 2001 Ford Explorer, Mercury Mountaineer, and Lincoln Navigator**. Engineered to deliver superior fuel delivery and enhanced throttle response, these injectors are built to handle the demands of forced induction, turbocharging, or aggressive tuning without compromising reliability. Each injector features a **6DPITE (6-Degree Pulse Width Injection Timing Engineered)** design, which ensures precise fuel atomization and optimal combustion efficiency, reducing the risk of fouling, carbon buildup, or lean-running issues that plague standard injectors under high-stress conditions. With **6 injectors paired with a 4-hole spray pattern**, these components provide a balanced fuel distribution across all cylinders, promoting smoother power delivery and better low-end torque critical for daily driving, towing, or spirited acceleration. Constructed from high-grade materials, including a durable stainless steel body and a robust solenoid assembly, these injectors are engineered to withstand the pressures of high-flow setups while maintaining consistent performance over extended periods. Whether you're running a mild turbocharger, a supercharger, or simply pushing the limits of your stock engine with a tune, these injectors offer the precision and durability needed to unlock your 4.0L s full potential without the headaches of clogging or inconsistent fueling. Backed by Maxpeeding Rods reputation for quality and performance, these injectors are a game-changer for enthusiasts looking to maximize power, reliability, and drivability in their Ford V6 applications.

### **Pros and Cons of Buying MaxSpeed Rods 6DPITE 6x 4-Hole Fuel Injectors for 1999-2001 Ford Explorer/Mercury Mountaineer 4.0L**

#### **Pros:**

1. **Improved Performance** The 6x 4-hole injectors provide better fuel delivery compared to stock injectors, allowing for more precise fuel atomization and improved throttle response. This can enhance acceleration and overall engine efficiency, especially when paired with supporting modifications like a tune or upgraded intake.

2. **Compatibility with Aftermarket Upgrades** The 4.0L Coyote engine in these vehicles is known for its potential to be tuned for better performance. These injectors are designed to work well with forced induction (turbo/supercharger) or high-performance ECU tunes, making them a solid choice if you plan to push the engine beyond stock levels.

3. **Better Fuel Economy (Under Certain Conditions)** If the engine is running leaner or more efficiently due to better fuel delivery, some drivers report slight improvements in fuel economy, particularly in open-throttle scenarios where stock injectors may struggle to keep up.

4. **Durability and Quality** MaxSpeed Rods is a reputable brand known for manufacturing high-quality fuel systems. The 6DPITE (Direct Port Injection Tuned Electronic) injectors are designed for reliability and longevity, especially when properly maintained.

5. **Easier Installation** These injectors are designed to drop-in replace stock injectors with minimal modifications required, making them a straightforward upgrade for DIY enthusiasts.

6. **Support for High-Performance Applications** If you plan to add a turbocharger or supercharger later, these injectors can handle the increased fuel demand better than stock units, reducing the risk of fuel starvation under boost.

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#### **Cons:**

1. **Cost** These injectors are more expensive than stock units, and the price may not be justified if you re only looking for mild performance gains without supporting modifications. A full tune and possibly upgraded fuel pump may be necessary to unlock their potential.

2. **Requires a Tune** Stock ECUs are calibrated for stock injectors, and using larger injectors without a tune can lead to rich conditions, poor drivability, or even engine damage. A custom tune (preferably from a reputable tuner familiar with the 4.0L Coyote) is essential to prevent issues.

3. **Potential Fuel Pump Upgrade Needed** Larger injectors draw more fuel, and if your stock fuel pump cannot keep up, you may experience fuel starvation under heavy loads. Upgrading the fuel pump (or using a high-flow pump) is often recommended.

4. **Mixed Results Without Supporting Mods** If you only install these injectors and do nothing else (no tune, no intake, no exhaust), the gains may be negligible. The 4.0L Coyote is a naturally aspirated engine with limited potential without supporting upgrades.

5. **Potential for Overfueling Without Proper Tuning** If the tune is not optimized, the engine may run too rich, leading to wasted fuel, poor efficiency, or even long-term damage to catalytic converters or oxygen sensors.

6. **Not a "Set and Forget" Upgrade** Unlike some bolt-on mods, these injectors require attention to detail in installation (proper wiring, O2 sensor adjustments, and tune calibration) to avoid issues.

---

### **Ending Conclusion:**

The **MaxSpeed Rods 6x 4-hole injectors** are a solid upgrade for the **1999-2001 Ford Explorer/Mercury Mountaineer 4.0L** if you are committed to a **performance build**. They offer better fuel delivery, compatibility with forced induction, and improved reliability compared to stock injectors but **only if properly supported with a tune and potentially a fuel pump upgrade**.

If your goal is **mild tuning or daily driving with minor power gains**, these injectors may not be worth the cost without additional modifications. However, if you plan to **push the engine harder (turbo/supercharger, aggressive tune, or high-RPM use)**, they are a worthwhile investment.

### **Recommendation:**

- **If you want a straightforward upgrade with minimal hassle**, consider **stock injectors with a tune** or **smaller aftermarket injectors (e.g., 4x 4-hole)** if you re not planning forced induction.

- **If you re serious about performance**, the **MaxSpeed Rods 6x 4-hole injectors are a good choice**, but **only if paired with:**

- A **custom tune** (preferably from a tuner experienced with the 4.0L Coyote).

- A **high-flow fuel pump** (if stock pump is insufficient).

- Supporting mods like **intake, exhaust, or forced induction** (if applicable).

- **Avoid installing these injectors without a tune**, as it can lead to drivability issues or engine damage.

- **Budget accordingly** these injectors are not cheap, and additional upgrades may be needed to see meaningful gains.

**Final Verdict:** *Worth it for enthusiasts building a performance Coyote, but not a necessary upgrade for casual drivers.*

Details:

Placement on Vehicle Front. OE/Part number. Package included. Insulation Cover Protect Fuel Injection Gas Stability.

Material: Plastic, Metal. O-Ring Resistant to Oil Corrosion Aging. Always the correct part. For Mercury Mountaineer 4.0L V6 1999 -2001.

6x 4Hole Fuel Injectors for Ford Explorer Mercury Mountaineer 4.0L 99-01 Most. Type: Fuel Injector. For Ford Explorer 4.0L V6 1999 -2001. Fitment Type Direct Replacement.

Free Shipping. Condition: Brand New. Electrical Plug Perfect for Strong Connection. Guaranteed Fitment.

. 280 155 900,XL2Z9F593AA. If you paid Before Apr. Fuel Type: Petrol.

Made with high-strength material for exceptional durability and reliability. 2.Precise Control. Showing as the picture. Quick, Simple.

Manufacturer. O-rings included: Yes. 1.Efficient Itemization. Please be very careful to check our photos, make sure the photo showed is same as you wanted.

Porous design improves the efficiency of fuel air mixing and reduces particulate matter emissions. 3.High Durability. Color As Pictures Show. 2.Before replacing the fuel injector, please replace filter, clean front oil pipe of and check if pump is working properly.

specifications carfuelinjector:

  • for models: Explorer, Mountaineer
  • for makes: Ford, Mercury
  • for years: 1999-2001
  • brand: Maxpeedingrods
  • mpn: 6dpite
  • california prop 65 warning: California Prop 65 Warning
  • country of origin: China
  • fitment: For Ford Explorer 4.0l V6 1999-2001, For Mercury Mountaineer 4.0l V6 1999-2001
  • fuel type: Gasoline
  • items included: O-ring
  • oe/oem part number: 0280155900, Xl2z9f593aa, Cm4903, 822-11135, Cb15037801s
  • performance part: Yes
  • type: Fuel Injector
  • universal fitment: No
  • important note: 100 New Alternator, Not Refurbished

shipping carfuelinjector:

  • cost: $0.00
  • type: Fixed
  • class: Standard
  • service: Standard
  • transit: 3-8 Days

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  • rating: 99.7%
  • city: Dayton, New Jersey
  • # reviews: 3808

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  • policy: Returns Accepted
  • time: 30 Days

general carfuelinjector:

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

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  • availability: In Stock
  • started: April 28, 2026
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for models: explorer, mountaineer, for makes: ford, mercury, for years: 1999-2001, california prop 65 warning: california prop 65 warning, country of origin: china, fitment: for ford explorer 4.0l v6 1999-2001, for mercury mountaineer 4.0l v6 1999-2001, fuel type: gasoline, items included: o-ring, oe/oem part number: 0280155900, xl2z9f593aa, cm4903, 822-11135, cb15037801s, performance part: yes, type: fuel injector, universal fitment: no, important note: 100 new alternator, not refurbished,
category: auto parts > air fuel delivery > fuel injection parts > fuel injectors, sku: 16149792929623881,
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