TOYOTA 2011 Tundra - Manual (Page 674)

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6-1. Specifications
6
Vehicl
e sp
ecification
s
n Engine number
The engine number is stamped on the engine block as shown.
4.0L V6 (1GR-FE) engine
4.6L V8 (1UR-FE) engine
5.7L V8 (3UR-FE, 3UR-FBE) engine