Performance Overview

NGK MDX Iridium Spark Plug (IZFR5K11) NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Actual OE or equivalent replacement spark plug. Laser Iridium plugs are tested to the highest standards to ensure quality and durability. Engineered specifically for OE applications.

Key Features

• Iridium tipped center electrode provides durability six times harder than platinum.
• NGK's high-grade pure alumina ceramic and 98% pure copper core prevents the spark plug from overheating while providing reliable starts.

Vehicle Fitment Table

FAQ

Will this fit my vehicle?
Please verify your year, make, model, position, and any fitment notes using the Vehicle Fitment Table above before purchase.

What part number is this?
The listed part number is 3657.

Is this product designed for direct replacement?
Yes. This product is intended to match the compatible vehicle applications listed in the fitment table.

Should I confirm fitment before ordering?
Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering.

Common Searches

• MDX Iridium Spark Plug Box of 4 for Acura MDX Base
• 3657 fitment
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• 2003 Acura MDX Base MDX Iridium Spark Plug Box of 4