NGK Iridium IX Spark Plugs LTR7IX-11 Box of 4 - 2022-2024 Ford Maverick 2.0L
SKU: ngk6510
Overview
The NGK Iridium IX Spark Plug (LTR7IX-11, Stock No. 6510) is the performance ignition upgrade serious enthusiasts trust for forced-induction, high-compression, and tuned engines. Built with a 0.6mm fine-wire iridium center electrode and tapered-cut nickel ground electrode, this plug delivers a stronger, more consistent spark with reduced voltage demand — translating directly into better throttle response, smoother idle, and cleaner combustion. Whether you're running a boosted Ford EcoBoost, a GM Gen V LT-series engine, or a Dodge HEMI, the NGK LTR7IX-11 is engineered to outperform OEM nickel alloy plugs in every condition.
THIS PLUG IS ONE STEP COLDER THAN OEM Consult with your tuner before switching to this spark plug.Key Features & Benefits
- 0.6mm Fine-Wire Iridium Center Electrode — Ultra-fine tip reduces voltage requirement for ignition, producing faster starts, smoother idle, and sharper throttle response with every revolution.
- Iridium Alloy Construction (6x Harder Than Platinum) — Iridium's extreme density and ultra-high melting point ensure consistent spark quality under the intense heat and pressure of forced-induction and high-compression environments.
- Tapered-Cut Nickel Ground Electrode — Reduced quenching design allows the flame core to grow freely after ignition, delivering outstanding ignitability, improved acceleration, and fuel efficiency.
- Trivalent Metal Shell Plating — Superior anti-corrosion and anti-seizing properties protect your cylinder head threads and make future plug changes fast and easy.
- Corrugated Ceramic Ribs — Prevent electrical flashover, ensuring every spark fires precisely at the electrode tip and nowhere else.
- Pure Alumina Silicate Ceramic Insulator — Provides superior structural strength and optimized heat transfer, keeping the plug running in its ideal temperature window.
- Solid Copper Core — 98% pure copper aids in rapid heat removal and delivers ultra-wide heat range compatibility for stock and modified engines alike.
- Triple Seals — Prevent combustion gas leakage around the insulator for reliable, long-term performance.
- Heat Range 7 (One Step Colder) — Slightly colder than many OEM plugs, this heat range helps control combustion temperatures under higher boost, spirited driving, or performance tuning — while remaining fully functional in stock applications.
- 40,000–50,000 Mile Service Life — Iridium tip holds its gap significantly longer than copper or nickel alternatives, reducing maintenance intervals and keeping performance consistent.
What's Included
- 4x NGK Iridium IX Spark Plugs (LTR7IX-11 / Stock No. 6510)
- Factory preset gap of 0.043" (1.1mm)
Specifications
| Manufacturer Part Number | LTR7IX-11 |
|---|---|
| NGK Stock Number | 6510 |
| UPC | 087295165102 |
| Electrode Tip Material | Iridium (0.6mm fine wire) |
| Center Electrode Core Material | Copper |
| Ground Electrode Material | Nickel (Taper Cut) |
| Insulator Material | Pure Alumina Silicate Ceramic |
| Thread Diameter | 14mm |
| Thread Pitch | 1.25mm |
| Thread Reach | 25mm (0.984 in.) |
| Seat Type | Tapered (No Gasket) |
| Hex / Wrench Size | 5/8" (16mm) |
| Terminal Type | Solid |
| Preset Gap | 0.043" (1.1mm) |
| Heat Range | 7 (One Step Colder Than Many OEM Plugs) |
| Resistor | Yes — 5,000 Ohm |
| Center Electrode Type | Projected |
| Ground Strap Quantity | One |
| Shorty Plug | No |
| Service Life | 40,000–50,000 miles (est.) |
| Quantity | Box of 4 |
Note: Always verify fitment using your vehicle's year, make, model, and engine before installation. For tuned or forced-induction applications, consult your tuner for optimal gap setting — performance builds often require a tighter gap of 0.028"–0.032" (0.7–0.8mm) to prevent spark blowout under high boost.
Frequently Asked Questions
Do I need to re-gap these plugs? The LTR7IX-11 comes factory pre-gapped at 0.043" (1.1mm). For stock or mildly modified engines, this gap is generally acceptable. For tuned or high-boost forced-induction applications, a tighter gap (0.028"–0.032") is commonly recommended — always follow your tuner's or manufacturer's guidance.
Is this plug one step colder than OEM? YES, for many applications (e.g., Ford Maverick, 2011–2017 Mustang GT, GM LT1), the heat range 7 is one step colder than the factory plug, making it ideal for modified, boosted, or spirited driving use cases.
Is this plug compatible with nitrous or forced induction? Yes. NGK specifically rates the Iridium IX series as suitable for nitrous and forced induction engine applications.
Installation
The NGK LTR7IX-11 is a direct-fit, bolt-in replacement for compatible applications and requires no special tools beyond a standard spark plug socket. The tapered seat design eliminates the need for a crush washer. Torque specs: Cast Iron heads — 10.8–18 lb-ft; Aluminum heads — 7.2–14.5 lb-ft. Do not over-torque. For high-performance or tuned builds, verify and adjust the plug gap before installation per your tuner's specifications. NGK recommends not adjusting the gap more than 0.008" from factory in either direction using the traditional bend method to avoid damaging the iridium tip.
Overview
The NGK Iridium IX Spark Plug (LTR7IX-11, Stock No. 6510) is the performance ignition upgrade serious enthusiasts trust for forced-induction, high-compression, and tuned engines. Built with a 0.6mm fine-wire iridium center electrode and tapered-cut nickel ground electrode, this plug delivers a stronger, more consistent spark with reduced voltage demand — translating directly into better throttle response, smoother idle, and cleaner combustion. Whether you're running a boosted Ford EcoBoost, a GM Gen V LT-series engine, or a Dodge HEMI, the NGK LTR7IX-11 is engineered to outperform OEM nickel alloy plugs in every condition.
THIS PLUG IS ONE STEP COLDER THAN OEM Consult with your tuner before switching to this spark plug.Key Features & Benefits
- 0.6mm Fine-Wire Iridium Center Electrode — Ultra-fine tip reduces voltage requirement for ignition, producing faster starts, smoother idle, and sharper throttle response with every revolution.
- Iridium Alloy Construction (6x Harder Than Platinum) — Iridium's extreme density and ultra-high melting point ensure consistent spark quality under the intense heat and pressure of forced-induction and high-compression environments.
- Tapered-Cut Nickel Ground Electrode — Reduced quenching design allows the flame core to grow freely after ignition, delivering outstanding ignitability, improved acceleration, and fuel efficiency.
- Trivalent Metal Shell Plating — Superior anti-corrosion and anti-seizing properties protect your cylinder head threads and make future plug changes fast and easy.
- Corrugated Ceramic Ribs — Prevent electrical flashover, ensuring every spark fires precisely at the electrode tip and nowhere else.
- Pure Alumina Silicate Ceramic Insulator — Provides superior structural strength and optimized heat transfer, keeping the plug running in its ideal temperature window.
- Solid Copper Core — 98% pure copper aids in rapid heat removal and delivers ultra-wide heat range compatibility for stock and modified engines alike.
- Triple Seals — Prevent combustion gas leakage around the insulator for reliable, long-term performance.
- Heat Range 7 (One Step Colder) — Slightly colder than many OEM plugs, this heat range helps control combustion temperatures under higher boost, spirited driving, or performance tuning — while remaining fully functional in stock applications.
- 40,000–50,000 Mile Service Life — Iridium tip holds its gap significantly longer than copper or nickel alternatives, reducing maintenance intervals and keeping performance consistent.
What's Included
- 4x NGK Iridium IX Spark Plugs (LTR7IX-11 / Stock No. 6510)
- Factory preset gap of 0.043" (1.1mm)
Specifications
| Manufacturer Part Number | LTR7IX-11 |
|---|---|
| NGK Stock Number | 6510 |
| UPC | 087295165102 |
| Electrode Tip Material | Iridium (0.6mm fine wire) |
| Center Electrode Core Material | Copper |
| Ground Electrode Material | Nickel (Taper Cut) |
| Insulator Material | Pure Alumina Silicate Ceramic |
| Thread Diameter | 14mm |
| Thread Pitch | 1.25mm |
| Thread Reach | 25mm (0.984 in.) |
| Seat Type | Tapered (No Gasket) |
| Hex / Wrench Size | 5/8" (16mm) |
| Terminal Type | Solid |
| Preset Gap | 0.043" (1.1mm) |
| Heat Range | 7 (One Step Colder Than Many OEM Plugs) |
| Resistor | Yes — 5,000 Ohm |
| Center Electrode Type | Projected |
| Ground Strap Quantity | One |
| Shorty Plug | No |
| Service Life | 40,000–50,000 miles (est.) |
| Quantity | Box of 4 |
Note: Always verify fitment using your vehicle's year, make, model, and engine before installation. For tuned or forced-induction applications, consult your tuner for optimal gap setting — performance builds often require a tighter gap of 0.028"–0.032" (0.7–0.8mm) to prevent spark blowout under high boost.
Frequently Asked Questions
Do I need to re-gap these plugs? The LTR7IX-11 comes factory pre-gapped at 0.043" (1.1mm). For stock or mildly modified engines, this gap is generally acceptable. For tuned or high-boost forced-induction applications, a tighter gap (0.028"–0.032") is commonly recommended — always follow your tuner's or manufacturer's guidance.
Is this plug one step colder than OEM? YES, for many applications (e.g., Ford Maverick, 2011–2017 Mustang GT, GM LT1), the heat range 7 is one step colder than the factory plug, making it ideal for modified, boosted, or spirited driving use cases.
Is this plug compatible with nitrous or forced induction? Yes. NGK specifically rates the Iridium IX series as suitable for nitrous and forced induction engine applications.
Installation
The NGK LTR7IX-11 is a direct-fit, bolt-in replacement for compatible applications and requires no special tools beyond a standard spark plug socket. The tapered seat design eliminates the need for a crush washer. Torque specs: Cast Iron heads — 10.8–18 lb-ft; Aluminum heads — 7.2–14.5 lb-ft. Do not over-torque. For high-performance or tuned builds, verify and adjust the plug gap before installation per your tuner's specifications. NGK recommends not adjusting the gap more than 0.008" from factory in either direction using the traditional bend method to avoid damaging the iridium tip.
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<p>You may return most new, unused items within <strong>30 days of delivery</strong> for a refund. Items must be uninstalled, in original packaging, and in resellable condition with all included hardware and documentation.</p> <h2>Restocking Fee</h2> <p>Returns may be subject to a <strong>restocking fee</strong>, deducted from your refund. Returns caused by our error (wrong or defective item shipped) are never charged a restocking fee.</p> <h2>Return Shipping</h2> <p><strong>Return shipping costs are the buyer's responsibility</strong>, unless the return is due to our error. We recommend a trackable shipping method; we are not responsible for returns lost in transit.</p> <h2>Non-Returnable Items</h2> <ul><li>Special order items — parts ordered specifically for you are final sale</li><li>It
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