Fuel injection pump

A fuel injection pump comprising:

• a cam configured to rotate together with a camshaft;
• a tappet configured to reciprocate in response to rotation of the cam;
• a cylinder supporting the tappet movable in an axial direction of the cylinder;
• a plunger reciprocating together with the tappet to inject pressurized fuel;
• and
• a thrust washer located between the cam and a casing housing the camshaft at both ends of the cam in an axial direction of the cam, wherein
• the tappet includes:
• a tappet body having a tubular part supported movable in the axial direction of the tappet body at the cylinder;
• a roller disposed between the tappet body and the cam, the roller rotating and reciprocating in response to rotation of the cam to move the plunger and the tappet;
• a supporting member supporting the roller rotatable;
• and
• a contact surface formed at an outer peripheral part of the tappet,
• the thrust washer includes a rotation restricting part that protrudes toward the tappet over a maximum lift position of the cam, and
• the rotation restricting part restricts rotation of the tappet relative to a center axis of the tappet body by being in contact with the contact surface of the tappet.