Ignition Coil and Iridium Spark Plugs for Subaru Tribeca (2008-2010) 3.6L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2008-2010 Subaru Tribeca

Direct-fit ignition overhaul: Replaces degraded factory coil packs and worn plugs to eliminate misfires, restore lost combustion efficiency, and stabilize idle in the 3.6L flat-six engine.

The Stock Tribeca Ignition Degradation

Due to the horizontally opposed layout of the EZ36D engine, the coil-on-plug units sit in tight proximity to exhaust manifolds and cylinder heads. Over time, prolonged thermal cycling breaks down internal primary and secondary copper windings and cracks the factory epoxy potting. This thermal stress causes micro-arcing, hesitation under load, rough idle, and unburned fuel entering the catalytic converters.

The Engineering Solution

This comprehensive ignition pack features high-dielectric epoxy casing, reinforced silicone boots, and high-conductivity copper wire windings capable of sustained high-voltage output without dielectric puncture. Paired with ultra-fine wire iridium spark plugs, the kit ensures low ignition voltage requirements, resistance to carbon fouling, and a focused, reliable spark kernel across the entire RPM band.

Technical Specifications

Compatibility

• 2008 Subaru Tribeca 3.6L H6 (Base, Limited)
• 2009 Subaru Tribeca 3.6L H6 (Base, Limited, Special Edition)
• 2010 Subaru Tribeca 3.6L H6 (Base, Limited, Touring)

The Subaru Boxer Reliability Standard

Built to withstand the unique packaging and heat demands of Subaru boxer architecture, this complete kit restores factory throttle response, smooths out cold-start fueling, and guarantees continuous high-load all-wheel-drive reliability.