OVERSTOCKDIRECT NGK Iridium IX Spark Plugs LKR7DIX-11S — 6 Pack, Fine-Wire Iridium Tips for 3.5L–3.8L V6 Engines

NGK Iridium IX LKR7DIX-11S spark plugs (pack of 6) are high-performance, OEM-equivalent ignition plugs designed for various 3.0–3.8L V6 and select 3.5L engines to deliver reliable spark, long service life, and consistent combustion.

These OVERSTOCKDIRECT-listed NGK 93175 iridium spark plugs suit many Acura, Chrysler, Dodge, Genesis, Honda, Hyundai, Jeep, Kia, Mitsubishi, Ram and Volkswagen models. Manufactured with a fine-wire iridium center electrode, a ceramic insulator and a resistor for noise suppression, the LKR7DIX-11S is engineered for stability across a wide operating range. The listing contains six plugs (part number LKR7DIX-11S) and matches factory specifications for thread, reach and heat range so you can replace all cylinders at once.

Which vehicles and engines will these plugs fit?

These plugs are compatible with numerous V6 engines across multiple makes spanning model years roughly 2008–2024. They commonly fit 3.5L and 3.6L V6 engines, plus certain 3.3L and 3.8L applications; always confirm fitment against your vehicle’s year, engine code and OEM part numbers before purchase.

• Common makes: Acura, Honda, Chrysler, Dodge, Hyundai, Kia, Jeep, Ram, Genesis, Mitsubishi, Volkswagen.
• Typical engines: 3.5L V6, 3.6L V6, 3.3L V6, 3.8L V6 and select 3.0L V6 variants.
• Model examples: Honda Accord, Acura RDX, Dodge Charger, Hyundai Santa Fe, Kia Telluride, Ram 1500.
• Always cross-check part number 93175 / LKR7DIX-11S with vehicle guide.

How do these Iridium IX plugs affect performance and longevity?

Iridium center electrodes are very hard and can be manufactured smaller than standard plugs, producing a more concentrated spark that promotes cleaner combustion. That design tends to maintain ignition stability over time and resist wear, translating to extended service intervals compared with conventional plugs.

• Fine-wire iridium tip for concentrated spark and stable firing.
• Durable ceramic insulator resists heat and fouling.
• Resistor built in to reduce radio-frequency interference.
• Mid-projection center electrode for consistent ignition timing.

What are the technical specs I should know before installing?

These plugs follow factory geometry and electrical characteristics: 12 mm thread diameter, 26.5 mm reach, 5/8" hex, .044" pre-gap, and a heat range rated 7. They include a nickel ground electrode in a taper-cut (J-gap) configuration and a crush washer seat for proper sealing.

• Part number: LKR7DIX-11S, stock no. 93175.
• Thread: 12.0 mm (0.472") and reach 26.5 mm (1.043").
• Pre-gap: 0.044" (1.1 mm); hex size: 5/8" (16 mm).
• Center electrode: iridium tip over copper core; ground tip: taper cut nickel.

How should I prepare and install these spark plugs?

Use the correct socket and torque spec to avoid damage to the thread or crush washer; a new spark plug socket with a soft insert prevents impact on the electrode. Verify the pre-gap and torque settings for your engine, replace plugs in all cylinders as a set, and follow your vehicle manufacturer’s service intervals for best results.

• Check and adjust pre-gap only if necessary to OEM spec (0.044" recommended).
• Tighten to vehicle-specific torque; do not overtighten the crush washer seat.
• Replace all plugs at once for balanced performance and consistent idle.
• Use anti-seize only if specified by installer; many NGK plugs are fine without it.

Who is this for? Technically minded DIYers, independent mechanics and fleet managers who need an OEM-equivalent replacement set of spark plugs for V6 engines will value these NGK Iridium IX parts. If you want long-term wear resistance, improved ignition consistency and a direct-fit replacement part for the listed models, this 6-pack from OVERSTOCKDIRECT is built to match factory fit and performance. Always verify compatibility with your vehicle’s engine code and service manual before ordering.

Note: This product description is informational. Confirm vehicle application and torque specs with manufacturer documentation before installation.