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 MANUALSTOYOTA20074 RUNNER 2WD V6-4.0L (1GR-FE)REPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSPOWERTRAIN MANAGEMENTIGNITION SYSTEMSPARK PLUG
2007 Toyota 4 Runner 2WD V6-4.0L (1GR-FE)
Spark Plug
2007 Toyota 4 Runner 2WD V6-4.0L (1GR-FE)SECTION Spark Plug
Spark Plug Type:
DENSO K20HR-U11
NGK LFR6C11
Spark Plug Gap New - mm (in.): 1.0 - 1.1 (0.039 - 0.043)
Maximum Spark Plug Gap - mm (in.): 1.41 (0.056)
Torque: 20 N.m (204 kgf.cm, 13 ft.lb)
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.