NGK
NGK IX Iridium Spark Plug Box of 4 (CR9EIX) - 3521
- SKU:
- NGK3521
- UPC:
- 87295135211
- MPN:
- 3521
- Availability:
- Regularly stocked product
Description
Are NGK Iridium IX spark plugs compatible with my vehicle?
Confirm fitment for your specific vehicle application using our detailed compatibility tool to ensure precise installation.
How do I install NGK Iridium IX spark plugs?
Install these drop-in spark plugs directly into your engine, following manufacturer torque specifications for optimal performance.
NGK Iridium IX spark plugs are engineered for peak performance, boasting a 9/9 rating for Street Performance and offering outstanding acceleration. Featuring a durable iridium fine wire center electrode six times harder than platinum, these spark plugs deliver extreme ignitability and responsiveness. Install with confidence for a significantly enhanced driving experience.
Key Features
- Iridium IX provides outstanding acceleration, high fuel efficiency and durability
- Iridium IX plugs offer extreme ignitability and exceptional anti-fouling
- Tapered cut ground electrode provides improved starting, idling and throttle response
- Iridium fine wire center electrode's durability is six times harder than platinum
- Iridium alloy's extremely high melting point is perfect for today's engines
- Trivalent metal plating for superior anti-corrosion and anti-seizing properties
Why Choose the NGK Iridium IX
Delivers exhilarating acceleration and maximizes your fuel savings for a more rewarding drive.
Achieves instant starts and smooth idling, transforming your engine's responsiveness.
Provides a consistently strong spark for reliable ignition and superior engine protection.
Transforms your engine's performance with a spark plug built to endure extreme conditions.
Who Is This For?
Daily Driving Comfort — 8/10
Improved starting, idling, and throttle response.
Street Performance — 9/10
Outstanding acceleration and throttle response.
Track / Autocross — 9/10
Extreme ignitability and improved throttle response.
Drag Racing — 9/10
Outstanding acceleration and extreme ignitability.
Racing Competition — 9/10
Extreme ignitability and outstanding acceleration.
Engine Performance — 9/10
Outstanding acceleration and extreme ignitability.
Frequently Asked Questions
Will the NGK Iridium IX spark plugs fit my vehicle?
Confirm vehicle fitment with your specific application to ensure proper compatibility for your NGK Iridium IX spark plugs. This drop-in replacement guarantees a precise match for your engine's requirements. Trust in OE-level engineering for confident installation and optimal performance.
How difficult is it to install the NGK Iridium IX spark plugs?
Installation of NGK Iridium IX spark plugs is a straightforward drop-in process, requiring minimal mechanical expertise. This ease of installation is designed for quick upgrades, allowing immediate enjoyment of enhanced engine responsiveness. Experience a seamless transition to superior ignition technology.
What performance improvements can I expect from NGK Iridium IX spark plugs over my stock plugs?
Expect outstanding acceleration and extreme ignitability, scoring a 9 for Street Performance and Racing Competition. The iridium fine wire center electrode's superior hardness six times that of platinum provides a consistently stronger spark. Transform your engine's responsiveness for a more exhilarating drive.
What makes the NGK Iridium IX suitable for demanding engine conditions?
The iridium alloy's extremely high melting point makes NGK Iridium IX perfect for today's demanding engines, scoring a 9 for Engine Performance. This advanced material ensures exceptional ignitability and durability under high heat and pressure. Rely on superior construction for enduring peak performance.
Additional Resources
Browse More: Shop All Spark Plugs — Ignition
Additional Information
Clearance Item: |
N |
MPN: |
3521 |
Proposition 65: |
N |
Case Lot Quantity: |
4 |
Category: |
Ignition>Spark Plugs |
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