What does this kit include?

The kit includes the following: 1128 129 1100 - Gasket 1122 120 3411 - Filter Base (Includes 9121 319 0960 Stud M5x12x9) 9216 261 0700 - Hexagon Nut M5 0000 140 4407 - Air Filter HD2 1122 140 1001 - Filter Cover 1124 140 9500 - Twist Lock