NGK 95605 LTR7BHX Ruthenium HX Spark Plugs
Available in Sets of 4 or 6
⚠️ Stock Update (as of 03/09/2026):
This product is currently out of stock. New orders are expected to ship in early May.
The NGK 95605 LTR7BHX spark plug features NGK’s Ruthenium HX technology, engineered for modern high‑output engines that demand strong ignitability, consistent combustion, and long service life. These plugs are a proven choice for Ford and Lincoln EcoBoost platforms, particularly in tuned and higher‑boost applications.
Key Features & Benefits
- Ruthenium HX Fine‑Wire Center Electrode (0.6mm):
Enhances ignitability and combustion stability across a wide range of air‑fuel ratios - Projected Square Platinum Ground Electrode:
Concentrates spark energy for improved performance in both rich and lean conditions - Platinum‑Enhanced Trivalent Metal Coating:
Superior corrosion resistance and anti‑seize properties - Copper Core Construction:
Efficient heat dissipation for consistent performance under load - Corrugated Ceramic Ribs & Pure Alumina Insulator:
Prevent flashover while providing excellent strength and heat transfer
Plug Gapping & Fitment Notes
- Standard Gap: 0.031" (0.8mm)
- Typical ZFG‑Recommended Gap for EcoBoost Applications: 0.028"
- Final gap recommendation varies by vehicle, boost, fuel type, and tuning strategy
✅ We strongly recommend confirming your plug gap before installation
✅ Pre‑gapped options are available at checkout under “Tuner Recommended Gap” or any of the specified gaps
📩 To confirm the correct gap for your setup, please email us your build details and any previous ZFG order number(s): Sales@tunedbyzfgracing.com
🎥 How to Gap Spark Plugs:
See our step‑by‑step guide on YouTube (link on page)
Shipping & Lead Time
- Spark plugs ship directly from ZFG Racing
- Lead times vary based on demand and gapping selection
- Pre‑gapped plugs typically ship within ~10 business days once in stock
Technical Specifications
Shell
- Thread Diameter: 14mm
- Thread Pitch: 1.25mm
- Seat Type: Tapered
- Reach: 25mm (1")
- Hex Size: 5/8" (16mm)
- Terminal Type: Solid
Electrodes
- Center Electrode Material: Ruthenium
- Center Electrode Type: Fine Wire (0.6mm)
- Ground Electrode Material: Platinum
- Ground Electrode Type: Projected Square
Electrical & Heat
- Resistor: Yes
- Resistor Value: 5k Ohm
- Heat Range: 7
Torque Specifications
- Cast Iron Heads: 10.8–18 lb‑ft
- Aluminum Heads: 7.2–14.5 lb‑ft
Additional Information
- Brand: NGK / NTK
- Warranty: 1 Year
- Expected Service Life: ~60,000–120,000 miles (application‑dependent)
Optional Add‑On: ZFG Spark Plug Gapping Package
The ZFG Spark Plug Package includes the specialized tools needed to:
- Measure plug gap
- Correct gap safely
- Verify consistency before installation
This package may be purchased with or without spark plugs and is ideal for DIY installers or shops wanting repeatable results.
NGK LTR7BHX (95605) Spark Plugs - Set of 4 or 6 - Pregapped or Standard Gap
Parts Package Discount
Vehicle Fitment
Set of 6: Confirmed for all 2.7L, 3.0L, and 3.5L EcoBoost engines including 2023+ F150.
Set of 4: Confirmed for all 2.3L EcoBoost engines.
