2009 Toyota Tundra Owners Manual - Page 635
2009 Toyota Tundra Manual
Page 635 highlights
6-1. Specifications Ignition system Spark plug 4.0 L V6 (1GR-FE) engine Make DENSO NGK Gap 4.7 L V8 (2UZ-FE) engine Make DENSO NGK Gap 5.7 L V8 (3UR-FE, 3UR-FBE) engine Make DENSO Gap K20HR-U11 LFR6C11 0.043 in. (1.1 mm) SK20R11 IFR6A11 0.043 in. (1.1 mm) SK20HR11 0.043 in. (1.1 mm) NOTICE n Iridium-tipped spark plugs (4.7 L V8 [2UZ-FE] and 5.7 L V8 [3UR-FE, 3UR-FBE] engines) Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine. 610