Engine, crankshaft thrust plate and vehicle

The utility model relates to an engine, a crankshaft thrust plate and a vehicle. The engine comprises a bearing seat (6) and a crankshaft thrust plate, the crankshaft thrust plate comprises a semi-circular plate body (1), wherein the sheet body (1) is provided with a friction end face (2) used for being attached to a crankshaft (5) and a non-friction end face (3) attached to a bearing seat (6), a boss (4) is formed on the sheet body (1) and protrudes out of the non-friction end face (3), and a chamfer (61) is formed on the bearing seat (6) and avoids the boss (4). According to the technical scheme, when the crankshaft thrust plate is correctly installed, the chamfer on the bearing seat can avoid the boss, so that the crankshaft thrust plate can be correctly installed in an engine; when the crankshaft thrust plate is wrongly installed, the boss abuts against the crankshaft, so that one end of the crankshaft thrust plate cannot be rotationally installed in an engine, and the situation that the crankshaft thrust