TRQ Ignition Kit Ignition Coil Spark Plugs Compatible with 2007-2012

In this review the TRQ Ignition Kit is evaluated as a practical direct-fit replacement for owners of 2007-2012 Chevrolet Colorado, GMC Canyon and compatible Hummer H3/H3T models with the 3.7L engine. The kit includes five ignition coils and five iridium spark plugs to complete a full-bank service, and the single biggest reason to buy is convenience: it provides a matched set designed to restore ignition performance without modification. Installation is straightforward for anyone familiar with basic engine work, and the kit is intended as an OE replacement to address misfires or a check engine light caused by coil or plug failure.

Key Features

• Direct Fit: The ignition coils and plugs are designed as a direct replacement so they install without modification on compatible 3.7L engines.
• Complete 10-Piece Kit: Including five coils and five iridium spark plugs provides a full-bank repair in one purchase, saving time sourcing individual parts.
• OE Reference Match: The kit lists OE and aftermarket reference numbers to help confirm compatibility with factory parts and simplify parts lookup.
• Application Specific Design: TRQ reports the kit is matched for fit, lab, and road testing so it aims to meet stock specifications for heat range and lifecycle.
• Iridium Spark Plugs: Supplied iridium plugs are chosen for stable spark and longer service life compared with basic copper plugs.

Who It's For

This kit is best for DIY mechanics and independent shops working on 2007-2012 Chevrolet Colorado and GMC Canyon L5 3.7L engines, and owners of Hummer H3 and H3T models listed in the fitment. It suits people who want a single-purchase solution to replace all ignition coils and plugs at once and restore engine smoothness or clear a misfire-related check engine light.

It may be less suitable for buyers seeking OEM-branded components or proven long-term lifespan data; some users report mixed results on mileage and lifespan, so owners who prioritize extended warranty or dealer support should consider factory parts alternatives.

Pros & Cons

Pros

• Direct fit design makes installation quick and reduces the chance of fitment errors.
• Complete 10-piece set saves time and ensures matched components for all cylinders.
• Iridium spark plugs offer better durability and stable ignition compared with basic plugs.
• Includes multiple OE reference numbers to aid compatibility checks.

Cons

• Customer feedback shows mixed reports on lifespan and occasional gap accuracy concerns, so long-term durability can vary.
• Mileage improvements are inconsistent across users, so results may depend on vehicle condition and installation quality.

Specifications

Our Verdict

The TRQ Ignition Kit is a practical, cost-conscious option for owners who need a full-bank replacement of coils and plugs on the 3.7L GM engines. Its direct-fit design and included iridium plugs make it a convenient repair that often resolves misfires or rough idle. Buyers should accept some variability in long-term lifespan and verify fitment using the provided reference numbers, but for routine replacement the kit offers solid value compared with sourcing parts separately.

Frequently Asked Questions

Does this kit fit my 3.7L engine?
Check the vehicle-specific fitment information in the listing and match the OE reference numbers like 12629472 to confirm compatibility.

Are the spark plugs included a premium type?
Yes, the kit includes iridium spark plugs, which are chosen for improved longevity and consistent spark over basic plug types.

Will installing this kit fix a check engine light?
If the light is caused by faulty coils or plugs, replacing all five coils and plugs in the kit often clears misfire codes, but diagnostics are recommended before replacement.