NGK

NGK IX Iridium Spark Plug Box of 4 (TR7IX) - 3690

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SKU:
NGK3690
UPC:
87295136904
MPN:
3690
Availability:
Regularly stocked product
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MSRP: $90.60
$34.37
— You save $56.23
Current Stock: 38

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Description

What is the recommended interval for replacing NGK Iridium IX spark plugs?
Confirm fitment with your vehicle's owner manual for precise replacement intervals specific to your Cadillac STS/XLR model.

Can I install NGK Iridium IX spark plugs myself?
Professional installation is recommended for NGK Iridium IX spark plugs to ensure optimal performance and prevent engine damage.

NGK Iridium IX spark plugs deliver extreme ignitability for maximum engine performance, rated an 8 for Street Performance and Track use. Featuring an iridium fine wire center electrode and a tapered cut ground electrode, these spark plugs ensure a powerful spark for enhanced throttle response and cleaner combustion. Trust these premium spark plugs for superior engine power and responsiveness in your Cadillac STS/XLR.

Key Features

  • Tapered cut ground electrode
  • Iridium fine wire center electrode
  • Trivalent metal plating
  • extreme ignitability
  • exceptional anti-fouling
  • six times harder than platinum

Why Choose the NGK Iridium IX

Delivers a more consistent and powerful spark for improved throttle response.

Achieves cleaner combustion, reducing emissions and enhancing fuel efficiency.

Provides superior durability and resistance to wear for long-lasting performance.

Transforms your driving experience with enhanced ignition reliability and power.

Who Is This For?

Street Performance — 8/10
Extreme ignitability ensures powerful spark for maximum performance.

Track / Autocross — 8/10
Extreme ignitability ensures powerful spark for maximum performance.

Drag Racing — 8/10
Extreme ignitability ensures powerful spark for maximum performance.

Racing Competition — 8/10
Extreme ignitability ensures powerful spark for maximum performance.

Engine Performance — 9/10
Extreme ignitability ensures powerful spark for maximum engine performance.

Fuel Efficiency — 7/10
Iridium fine wire center electrode promotes efficient combustion.

Frequently Asked Questions

Will the NGK Iridium IX fit my Cadillac STS or XLR?

Confirm fitment with your specific vehicle's year, make, and model before purchasing. This ensures proper compatibility and optimal performance for your Cadillac STS or XLR. Accurate fitment guarantees the spark plug will function as intended.

How difficult is it to install the NGK Iridium IX spark plugs?

Professional installation is recommended for the NGK Iridium IX spark plugs. Confirm the installation process with a qualified technician for precise and safe integration. This ensures the advanced ignition components are correctly seated.

What performance improvements can I expect from NGK Iridium IX spark plugs on the street?

Expect enhanced engine performance with a significant spark improvement for street use. The NGK Iridium IX scores an 8/8 for "Street Performance" due to its extreme ignitability. This translates to a more responsive and powerful driving experience.

How does the NGK Iridium IX contribute to fuel efficiency?

The NGK Iridium IX contributes to improved fuel efficiency through its advanced design. Scoring a 7/7 for "Fuel Efficiency," its iridium fine wire center electrode promotes more complete and efficient combustion. This results in less wasted fuel and a cleaner burn.

Additional Resources

Official NGK Product Page

Browse More: Shop All Spark Plugs — Ignition

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Additional Information

Clearance Item:
N
MPN:
3690
Proposition 65:
N
Case Lot Quantity:
4
Category:
Ignition>Spark Plugs
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