Ignition Coil and Iridium Spark Plugs for Subaru Tribeca (2006-2007) 3.0L

Direct-Replacement Ignition Coil and Iridium Spark Plug Kit for 2006-2007 Subaru Tribeca

What it Does: Directly replaces deteriorating factory coil packs and aged plugs to eliminate cylinder misfires, rough idle, and unburnt fuel loss across the EZ30 flat-six powertrain.

The Stock Tribeca Ignition Breakdown

The compact horizontal layout of the Subaru EZ30 engine subjects the coil-on-plug assemblies to continuous, severe thermal soak directly adjacent to the cylinder heads and exhaust manifolds. Over time, OEM epoxy encapsulation degrades, leading to internal short circuits, dielectric breakdown through the rubber boots, and secondary voltage leakage. Combined with widened spark plug gaps from electrode erosion, this results in hesitation under load, P0300-series trouble codes, and reduced fuel efficiency.

The Engineering Solution

This comprehensive service kit features 6 direct-fit ignition coils paired with 6 precision fine-wire ILFR6B iridium spark plugs. The coils utilize high-grade magnetic copper windings and reinforced thermoplastic housings resistant to sustained 150°C+ engine bay temperatures. The matched iridium spark plugs feature a laser-welded 0.6mm center electrode designed to lower required firing voltage, provide high ignitability, and resist carbon fouling under heavy loads.

Technical Specifications

Compatibility

• 2006 Subaru B9 Tribeca 3.0L H6 (Base, Limited)
• 2007 Subaru B9 Tribeca 3.0L H6 (Base, Limited, Special Edition)

The Subaru Boxer Reliability Standard

Engineered to handle the unique balance and high-RPM harmonics of Subaru’s 3.0L boxer platform, this ignition kit delivers consistent, high-energy spark distribution without triggering false misfire codes or ECU timing retards.