NGK 95605 LTR7BHX Ruthenium HX Spark Plugs
Available in Sets of 4 or 6
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.
✅ Check out our Spark Plug Package with Gap Tool and Feeler Gauges
✅ We strongly recommend confirming your plug gap with a feeler gauge before installation
✅ Pre‑gapped options are available at checkout under “Tuner Recommended Gap” or any of the specified gaps.
🎥 How to Gap Spark Plugs:
See our step‑by‑step video on YouTube
📦 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
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
📩 To confirm the exact recommended gap for your setup, please email us your build details and any previous ZFG order number(s): Sales@tunedbyzfgracing.com
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.
Important: ZFG Racing does NOT sell or ship to the State of California.
Orders shipping within the Continental USA can be placed directly through our website. Shipping charges will be automatically calculated at checkout once a valid shipping address is entered.
We are happy to accommodate orders outside the Continental USA whenever possible, including Hawaii, Alaska, U.S. Territories, APO/FPO addresses, and select international destinations. To place an order for any of these locations, please submit a Request for Invoice and include your full address (city, state/province, and postal/ZIP code).
Tracking information and order updates will be sent via email and can also be viewed in your ZFGR Account → Order History.
