Ignition Coil and Iridium Spark Plugs for GMC Canyon (2007-2012) 2.9L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2007-2012 GMC Canyon

What it Does: The ignition coil and iridium spark plug kit restores factory spark energy and combustion efficiency on the 2007-2012 GMC Canyon 2.9L to eliminate misfires, stabilize idle, and recover lost fuel economy.

The Stock GMC Canyon Atlas LLV Secondary Ignition Breakdown

The factory coil-on-plug modules mounted directly atop the Atlas LLV cylinder head endure brutal thermal cycling. Over miles of service, high underhood heat breaks down the internal primary and secondary copper windings, while dielectric epoxy degrades and micro-cracks. This insulation failure leads to secondary voltage leakage, internal arcing, and intermittent P0300 through P0304 misfire DTCs under load. Simultaneously, standard nickel-core or fatigued OEM spark plugs suffer from eroded center electrodes and widened gaps, which severely spikes coil dwell times and burns out secondary coil drivers prematurely.

The Engineering Solution

This comprehensive tune-up kit pairs heavy-duty coil packs with high-conductivity iridium spark plugs designed specifically for the GMT355 platform. The ignition coils feature premium copper windings insulated with vacuum-poured dielectric epoxy to resist heat soak, vibration, and internal carbon tracking. Each plug incorporates a laser-welded, fine-wire 0.6mm iridium center electrode and platinum ground pad, requiring lower secondary ionization voltage while producing a faster, more concentrated flame kernel. This setup prevents spark blowout, minimizes parasitic electrical loads on the PCM, and directly replaces OEM part numbers 12596547, 12612369, and UF497.

Technical Specifications

Compatibility

• 2007-2012 GMC Canyon WT (2.9L I4 LLV)
• 2007-2012 GMC Canyon SLE (2.9L I4 LLV)
• 2007-2012 GMC Canyon SL (2.9L I4 LLV)

Frequently Asked Questions

Does this fit the GMT355 Canyon?
Yes, this is a direct fit for the 2007-2012 GMC Canyon equipped with the 2.9L LLV engine.

Do these spark plugs require manual gapping prior to installation?
No, iridium fine-wire plugs are pre-gapped to factory specifications; manual gapping can fracture the brittle iridium center electrode.

The GMC Truck Durability Standard

Engineered to handle sustained payload hauling and daily job-site duty, this ignition package delivers the uncompromised combustion stability and thermal resistance essential for dependable fleet and midsize truck performance.