TRQ Spark Plug Kit 7 Piece Iridium Compatible with 1997-2002

In this review the TRQ Spark Plug Kit 7 Piece Iridium is evaluated for owners of late 1990s to early 2000s Nissan and Infiniti V6 vehicles. The bottom line: it is a practical, value-oriented replacement kit that includes both a spark plug wire set and six iridium spark plugs so a full ignition service can be completed with one purchase. This kit is best when the goal is a direct-fit, like-for-like repair and when ease of installation and having matched components are priorities for a DIY mechanic.

Key Features

• Complete kit: Includes one spark plug wire set plus six iridium spark plugs to perform a full ignition tune-up without sourcing parts separately.
• Direct-fit design: Components are built as application specific replacements so no modifications are necessary and fitment aims to match original equipment.
• Iridium plugs: Spark plug type uses iridium for improved wear characteristics compared with standard copper plugs, supporting longer service life.
• Reference compatibility: Supplied with a wide range of reference numbers to help confirm match with OEM part listings and compatibility charts.
• Installation support: TRQ provides a large catalog of DIY videos so installers can view procedures before they begin, reducing installation guesswork.
• Tested performance: The kit is described as fit, lab, and road tested to meet expected performance and heat range matching to stock specifications.

Who It's For

This kit is aimed at owners of 1996-2002 Nissan Pathfinder, Frontier, Xterra and 1997-2000 Infiniti QX4 with the 3.3L V6 who want to replace both spark plugs and ignition wires in one maintenance session. It suits hands-on DIYers who prefer a matched kit and those who value having step-by-step visual guidance through manufacturer video resources.

Drivers seeking a guaranteed premium-brand OEM part or those requiring performance-oriented or custom gapped plugs should look elsewhere, since some buyers reported mixed experience with plug gapping and overall plug function, and the kit is positioned as a direct replacement rather than a performance upgrade.

Pros & Cons

Pros

• Complete one-purchase repair solution with both wires and six iridium plugs included.
• Direct-fit, application specific design reduces installation time and the need for modifications.
• Good value for money compared with buying parts separately, and customers praise fit and price.
• Extensive DIY video library helps installers confirm steps before starting the job.

Cons

• Some users reported mixed results with spark plug gapping and functionality, so checking gaps before installation is advisable.
• Not marketed as a high-performance upgrade, so drivers seeking specialized plugs may prefer alternative options.

Specifications

Kit contents	1 spark plug wire set and 6 iridium spark plugs
Spark plug type	Iridium
Compatible engines	V6 3.3L (naturally aspirated where listed)
Vehicle fitment years	1996-2002 (varies by model: Pathfinder, Frontier, Xterra, QX4)
Fitment models	Infiniti QX4, Nissan Frontier, Nissan Pathfinder, Nissan Xterra
Testing	Fit, lab, and road tested; heat range and life cycle tested
Reference numbers	Multiple OEM references included for cross-checking

Our Verdict

The TRQ 7 piece iridium spark plug kit is a sensible, cost-effective choice for owners of compatible late 1990s and early 2000s Nissan and Infiniti V6 vehicles who want a full ignition refresh in one purchase. It offers reliable direct-fit components and helpful installation videos, though installers should verify plug gaps before installation. For routine maintenance and value-conscious DIYers, it delivers good utility and matched parts for a complete repair.

Frequently Asked Questions

Does this kit include both wires and plugs?
Yes, the kit ships with one spark plug wire set plus six iridium spark plugs for a full ignition service.

Will these parts fit my V6 3.3L Nissan or Infiniti?
The kit is intended for 1996-2002 models listed (Pathfinder, Frontier, Xterra, QX4) with the 3.3L V6; check the reference numbers and the vehicle compatibility chart before purchase.

Should I check plug gaps before installing?
Yes, some users reported mixed gap experience, so confirming and adjusting gaps to the vehicle specification prior to installation is recommended.