Ignition Coil Packs & Spark Plugs Kit for Nissan 3.5L V6 - Reliable

In this review the kit of six ignition coil packs and spark plugs is assessed for owners of Nissan and Infiniti vehicles with the 3.5L V6. The bottom line: this replacement kit is for drivers who need a direct-fit repair to restore factory spark output and reduce misfires. The reviewer found the set addresses rough idle and weak throttle response quickly, and the inclusion of voltage-matched coils and pre-gapped plugs makes it a straightforward swap for routine ignition failures.

Key Features

• Direct vehicle fit: Designed to fit multiple Nissan and Infiniti 3.5L V6 models so buyers can match their year and application without modifications.
• OE-equivalent connectors: Coils use original-style connectors to ensure a secure electrical connection and simpler installation.
• Voltage-matched windings: Windings are matched to provide consistent spark energy across all six cylinders, reducing the risk of uneven combustion.
• Pre-gapped spark plugs: Plugs arrive pre-gapped for the 3.5L engines to save installation time and reduce tuning guesswork.
• High-temp epoxy coil bodies: Encapsulation protects the coil from heat and vibration common in V6 engine bays for dependable operation.
• OE replacement numbers: Replaces UF550, 22448JA10C, C1670, 5C1727 and spark plug OE 1406 for straightforward part matching.

Who It's For

This kit is aimed at DIY mechanics and independent shops working on 3.5L V6 Nissan and Infiniti models such as Maxima, Altima, Murano, Pathfinder, 350Z, Quest and G/EX/JX/FX/M series where ignition coils or plugs have begun to fail. It is most useful when customers want a complete bank replacement to eliminate intermittent misfires and restore throttle response.

It is less appropriate for those who require OEM-authorized branded parts for warranty transfer, or for buyers who need one-off original factory coils with specific manufacturer packaging; this kit is an aftermarket replacement built to match OE fit and function, not OEM branded supply.

Pros & Cons

Pros

• Good fitment across many 3.5L Nissan and Infiniti models, simplifying part selection.
• Easy installation thanks to OE-style connectors and pre-gapped plugs, saving shop time.
• Delivers improved cold starts and throttle response by restoring spark output.
• Value for money for a full six-pack replacement compared with replacing coils individually.

Cons

• Quality feedback is mixed among users, so long-term durability may vary by operating condition.
• Not an OEM-branded unit, which may matter to buyers who prefer factory-branded parts.

Specifications

Our Verdict

The six-coil and plug kit is a pragmatic choice for owners of 3.5L Nissan and Infiniti vehicles who need to eliminate misfires and restore factory-like spark performance. It delivers solid installation convenience and broad fitment at a sensible price, making it good value for anyone replacing an entire bank of coils and plugs, though buyers seeking factory-branded parts should consider OEM options.

Frequently Asked Questions

Will this kit fit my 2012 Nissan Altima?
Yes, the kit lists fitment for 2007-2018 Nissan Altima 3.5L models, but always verify engine size and chassis before purchase.

Are the spark plugs pre-gapped?
Yes, the spark plugs are supplied pre-gapped for the 3.5L V6 to simplify installation.

Does it replace OEM coil numbers?
Yes, the coils are intended to replace OE numbers such as UF550, 22448JA10C, C1670 and 5C1727.