Tundra 4WD V8-5.7L (3UR-FE) (2007)
Spark Plug: Specifications
Spark Plug
Electrode gap for a new spark plug .......................................................................................................................... 1.0 to 1.1 mm (0.0394 to 0.0433 in.)
Maximum electrode gap for a used spark plug ................................................................................................................................... 1.3 mm (0.0512 in.)
Spark plug x Cylinder head ............................................................................................................................................ 18 N*m (178 kgf*cm, 13 ft.*lbf)