Parts for your 2007 Subaru Forester-Ignition leads

2007 Subaru Forester ignition leads — are they actually a thing on this model?

Short answer: no, ignition leads aren’t used on the 2007 Subaru Forester. According to the Subaru Factory Service Manual for the SG-series Forester (MY2006–2008, Ignition System – Direct Ignition) and Subaru’s Electronic Parts Catalogue (FAST) for MY2007, both the naturally aspirated EJ253 and turbocharged EJ255 engines run a direct ignition system with an individual coil-on-plug (COP) unit on each cylinder. There’s no distributor and no high‑tension lead set, just the coil, its rubber boot and the spark plug. You’ll also notice the parts catalogue lists four ignition coils (one per cylinder) and no spark plug wire kit for this year, which backs it up.

Why Subaru skipped ignition leads on this Forester comes down to reliability, packaging and cleaner running. Coil-on-plug keeps the high voltage path super short, which improves spark energy at the plug, reduces chances of crossfire, and helps the engine control module dial in precise timing for emissions and fuel economy. It also frees up space around the engine and cuts out a wear item (those old-school leads that crack and arc when they age).

• What to service instead: focus on spark plugs and the coils. Replace plugs at the interval in the owner’s manual (iridium types typically go long, while copper types are shorter). When the plugs are out, inspect each coil boot for swelling, tears or carbon tracking and check the connectors for corrosion or loose terminals.
• Symptoms of trouble: rough idle, misfire under load, poor fuel economy, hard starting and a flashing MIL. OBD-II codes like P0301–P0304 point to cylinder-specific issues, swapping a suspect coil to another cylinder is a quick way to confirm.
• Handy tips: keep the coil boots clean and dry, use a light smear of dielectric grease inside the boots, and torque plugs to spec from the service manual to avoid thread or heat issues.

If you’re shopping online and see “ignition leads” listed for a 2007 Forester, that’s usually a catalogue catch‑all. For this model year, the correct ignition parts are four coil-on-plug units and the appropriate spark plugs for the specific engine code.

Popular questions

Does a 2007 Subaru Forester have ignition leads?
No. Per the Subaru Factory Service Manual (SG, MY2006–2008) and Subaru FAST parts data, it uses a direct ignition system with a coil on each spark plug, so there are no high‑tension leads to replace.

What should be replaced as part of ignition maintenance on this model?
Replace the spark plugs at the recommended interval in the owner’s manual, and inspect each coil and boot for cracks, carbon tracking or oil contamination. Ensure electrical connectors are snug and clean. If misfires persist, test or swap coils to isolate a faulty unit.

How can you tell if an ignition coil is failing?
Look for a rough idle, hesitation under load, or increased fuel use. The check engine light may set a P030x misfire code. Visual signs include cracked boots or arcing marks. A quick swap test—moving a coil to another cylinder and seeing if the misfire moves—helps confirm.