Part numbers for different models. Don't know if they are interchangeable... 3LN1 - 3LN-22110-00- P0 3LN3 - 3LN-22110-50 3LN5 (A) - 3LN-22110-60-7B 3LN5 (B) - 3LN-22110-60-P0 3LN6-7 - 3LN-22110-51