NGK Iridium IX Spark Plugs – LTR6IX-11 (6509)

Description

NGK Iridium IX Spark Plugs – LTR6IX-11 (6509)

Heat Range: 6 | Thread Size: 14mm | Reach: 26.5mm | Gap: 1.1mm

🔢 Common Pack Sizes

• Single (x1): For individual replacement

• Twin Pack (x2): Less common, but available

• 4-Pack (x4): For 4-cylinder engines

• 6-Pack (x6): For inline-6 and some V6 engines

• 8-Pack (x8): For V8 engines

📝 Description

The NGK LTR6IX-11 is a high-performance spark plug from the Iridium IX series, engineered for enhanced ignitability, fuel efficiency, and long service life. Its fine-wire iridium center electrode ensures a more consistent and powerful spark, improving throttle response and combustion efficiency in modern engines.

⭐ Key Features

• Fine-wire iridium center electrode for long life and performance

• Tapered ground electrode reduces quenching, enabling better combustion

• Trivalent metal plating for excellent anti-corrosion and anti-seize protection

• Built-in resistor to reduce electromagnetic interference (EMI)

• Heat Range 6 – Suitable for a wide range of modern petrol engines

🏭 About NGK

NGK Spark Plugs is a global leader in ignition technology with over 80 years of innovation and OE expertise. As the trusted supplier for many car manufacturers, NGK delivers superior reliability, performance, and quality across all applications.

✅ Vehicles That Suit NGK LTR6IX-11 (Australia)

🔹 Ford

• Mustang (S197, 2011–2014): 3.7L V6 Cyclone

• F-150: 3.5L EcoBoost V6 / 3.7L V6 (US/Grey import)

• Transit 350 (US models): 3.5L EcoBoost V6 (rare in AU)

🔹 Mazda

• Mazda 3 MPS (BK, BL): 2.3L DISI Turbo

• Mazda 6 MPS (GG): 2.3L DISI Turbo

• Mazda CX-7: 2.3L Turbocharged MZR

🔹 Nissan

• Navara D40 / Pathfinder R51 / Xterra (import): 4.0L V6 (VQ40DE)

🔹 Suzuki

• XL-7 (2007–2009): 3.6L V6 (GM-sourced engine)

🔹 Saab

• 9-4X: 3.0L or 2.8L Turbo V6 (GM-based engines)

🔹 Holden / GM

• Commodore VE / VF: Selected 3.6L SIDI V6 engines (LLT, LFX – confirm engine code)

• Captiva CG Series II: 3.0L / 3.6L SIDI V6

• Chevrolet Malibu / Equinox / Traverse: 2.4L or 3.6L (imported/rebadged)

🔧 Fitment Tip

Always confirm compatibility using:

• VIN lookup

• NGK AU fitment catalogue

• OE part number cross-reference

Engine variations or updates may affect spark plug requirements.

⚠️ Disclaimer

The NGK LTR6IX-11 (6509) suits a wide range of vehicles and engines, but compatibility may vary based on engine code, model year, and market specifications.

Please consult your vehicle’s owner manual, a qualified mechanic, or NGK’s official fitment guide to verify suitability before purchase or installation.