Ignition Coil Pack UF349 and Iridium Spark Plugs 6376 Replacement

In this review the reviewer looks at the TAUXMZ ignition coil pack UF349 bundled with iridium spark plugs 6376 as a direct replacement option for a range of Nissan and Infiniti V6 engines. The bottom line: this set is for owners who need an affordable, durable repair that restores lost power and smooths rough idle without aftermarket tuning. The single biggest reason to buy is straightforward: it combines high quality coil materials and iridium plugs to address misfire and poor cold-start performance in affected 3.5L and 4.0L V6 models.

Key Features

• Vehicle fitment compatibility: Designed to replace factory coils and plugs on a range of Nissan Altima, Maxima, Murano, Quest, Frontier, Pathfinder, Xterra and Infiniti I35 or QX4 models to simplify part selection.
• Durable coil construction: Coil packs use silicon steel, Japan-imported rubber and Germany-imported varnished wire for longer life compared with basic replacements.
• Iridium spark plugs: Spark plugs use an iridium electrode and special ceramic to improve cold-start response and help regain throttle response and acceleration.
• OE cross-reference: The kit lists many OE numbers so buyers can confirm match with their original parts before ordering to avoid fitment mistakes.
• Reduced misfire risk: The coils are engineered as a direct replacement to reduce misfires and restore smoother idle and fuel economy when installed correctly.

Who It's For

This bundle is best for DIY mechanics and independent shops replacing worn coils and plugs on compatible Nissan and Infiniti V6 engines who want a combined solution rather than sourcing parts separately. It is also suitable for owners who noticed symptoms such as rough idle, decreased power or poor fuel economy and want a relatively low-cost way to restore normal operation.

Those who should look elsewhere include owners of vehicles outside the listed model years or engine sizes, and anyone who requires OEM-branded warranty paperwork or dealer-only calibration services. Always check the listed OE cross-references and your vehicle's specific connector to avoid ordering the wrong electrical plug style.

Pros & Cons

Pros

• Restores lost engine power and smooths idle for many users when the original coils were failing.
• Higher-grade materials in the coil and iridium plugs aim to increase durability and spark consistency.
• Good value for the combined set versus buying coils and plugs separately, and users report easy installation in many cases.

Cons

• Some buyers report fitment issues with the electrical plug connection, so careful compatibility checks are required before purchase.
• The set is a direct replacement but does not include vehicle-specific installation instructions beyond OE cross-reference numbers.

Specifications

Brand	TAUXMZ
Included parts	Ignition coil pack UF349 and iridium spark plugs 6376 (set of 6)
Compatible engines	3.5L V6 and 4.0L V6 Nissan/Infiniti applications
Compatible models	Altima, Maxima, Murano, Quest, Frontier, Pathfinder, Xterra, Infiniti I35, QX4 (listed years)
Coil materials	Silicon steel, Japan-imported rubber, Germany-varnished wire
Spark plug type	Iridium electrode with special ceramic
OE cross references	Includes UF349 and numerous factory numbers for fit verification

Our Verdict

The TAUXMZ coil pack and iridium plug set is a practical, cost-effective repair for owners of the listed Nissan and Infiniti V6 models who need to stop misfires and restore engine smoothness. It offers sensible material upgrades and good value, but buyers must verify OE cross-references and connector fitment to avoid compatibility problems.

Frequently Asked Questions

Will this set fit my 2005 Nissan Altima 3.5L?
Check the listed model years and OE cross-reference numbers; the kit is shown compatible with Altima 2002-2006 3.5L V6, so confirm your engine code and connector before ordering.

Are the spark plugs iridium?
Yes, the included spark plugs use an iridium electrode and special ceramic to improve starting and throttle response.

How long do these coils last?
The product is specified to perform well beyond typical early failures and was tested to avoid misfire for more than 15,000 miles, though actual life depends on vehicle conditions and maintenance.