Part Number Designations

[sarti]

In my parts manual it lists D1803-cr-E4-LB2 also an D1803-cr-E4 LB-4 can you please tell me what LB2 and LB4 means so I know what I got Eng.#D1803-71CY8121 I think its the tier number but not sure I have an 2020 L-3901 Thanks