NGK Laser Iridium Spark Plug DILKAR7M8 (90288) — Iridium Tip, OE-Equivalent Single Plug

NGK DILKAR7M8 is a genuine NGK Laser Iridium 90288 spark plug engineered to deliver reliable ignition, long life, and direct OE-equivalent replacement fitment.

This NGK Laser Iridium spark plug is an original-equipment-quality ignition component designed for cars that need consistent combustion performance and extended service intervals. Built with a fine iridium center electrode and precision ground tip, it provides a stable spark while resisting wear. The plug ships as a single unit with compact retail packaging and is sized to match many factory specifications that call for the DILKAR7M8 or 90288 part number.

What makes the NGK Laser Iridium design better for long-term use?

The iridium center electrode has a much smaller diameter and higher melting point than conventional nickel electrodes, which reduces erosion and keeps the spark gap stable over time. That leads to more consistent ignitions and longer intervals between replacements without sacrificing performance. NGK’s manufacturing tolerances also ensure reliable thread engagement and heat control.

• Fine iridium tip for minimal electrode wear and consistent spark
• Precision-ground firing end for stable ignition characteristics
• OE-equivalent dimensions and thread compatibility for direct fit

How does this plug affect everyday driving and engine startup?

A properly functioning NGK Laser Iridium spark plug promotes quick, reliable starts and smooth idle behavior by delivering a focused, repeatable spark. Improved ignition stability can help reduce misfires and maintain steady throttle response under normal driving conditions. It’s particularly beneficial for engines that require precise combustion timing.

• Sharper spark improves cold starts and throttle response
• Stable idle and fewer misfires with maintained spark gap
• Compatible with many vehicles specifying DILKAR7M8 / 90288

How do I know this is the correct replacement for my engine?

Confirm fitment by checking your vehicle’s service manual or parts lookup against the NGK part number DILKAR7M8 (90288). The plug is supplied as one unit and matches OE-equivalent thread length, hex size, and reach for applications that list this specific NGK reference. When in doubt, cross-reference via your VIN or OEM part number to ensure correct compatibility.

• Use vehicle parts catalog or VIN lookup for exact fit confirmation
• Single plug package — quantity equals one spark plug
• Item package dimensions: 3.7008 x 0.9449 x 0.8268 inches; weight ~0.088 lb

How should I install and maintain NGK Laser Iridium plugs?

Install with the manufacturer-recommended torque and a clean spark-plug bore to avoid cross-threading. Check and set the gap only if specified by your service guide; most iridium plugs come pre-gapped to OE specs. Replace plugs at the intervals recommended by your vehicle maker or sooner if engine diagnostics indicate ignition issues.

• Hand-start threads, then torque to vehicle manufacturer spec
• Pre-gapped for OE applications — verify gap if needed
• Replace according to vehicle service interval or diagnostic need

Who is this for: The NGK DILKAR7M8 (90288) Laser Iridium spark plug is intended for drivers, mechanics, and fleet managers seeking a direct OE-equivalent replacement that balances longevity and ignition consistency. It suits cars and light vehicles that specify this NGK part number, especially where improved electrode life and steady combustion are priorities. Choose this single-unit plug when you want genuine NGK quality, precise manufacturing tolerances, and an easy direct-fit replacement for compatible engines.