Sequoia 4WD V8-5.7L (3UR-FE) (2009)
Spark Plug: Specifications
SPARK PLUG
Using a 16 mm plug wrench, install the 8 spark plugs.
Torque.......................................................................................................................................................................................21 Nm (214 kgf-cm, 16 ft-lbf)
Maximum electrode gap for a used spark plug..........................................................................................................................................1.3 mm (0.0512 in).
If the gap is more than the maximum, replace the spark plug.
Electrode gap for a new spark plug.................................................................................................................................1.0 to 1.1 mm (0.0394 to 0.0433 in).