Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSSUBARU2002FORESTER BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESPECIFICATIONSENGINE CONTROLS - SERVICE & ADJUSTMENT SPECIFICATIONSIGNITION SYSTEMSPARK PLUGS

2002 Subaru Forester Base

Spark Plugs

2002 Subaru Forester BaseSECTION Spark Plugs

SPARK PLUG TYPE

Application	Champion	NGK
2.0L & 2.5L	RC10YC4	BKR5E-11 Or BKR6E-11
3.0L	N/A	PLFR6A-11

SPARK PLUG SPECIFICATIONS

Application

Gap - In. (mm)

⁽¹⁾ Torque - Ft. Lbs. (N.m)

All Models

0.039-0.043 (1.0-1.1)

15 (21)

⁽¹⁾	Torque should only be applied to new spark plugs without oil on the threads. In case threads are lubricated, torque should be reduced by approximately 1/3 of specified torque in order to avoid over stressing.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.