Part Number: 100RN21P-CBRP1 (Oem only 6-8wks authorized line.) Part Number: 100RN21P-CBRP2 (Oem only 6-8wks authorized line.) Part Number: 100RN21P-CBRP3 (Oem only 6-8wks authorized line.) Part Number: 100RN21S-4 (No description) Part Number: 100RN21S-4A5AL (Amph) Part Number: 100RN21S-4E1AB (Oem only 6-8wks authorized line.) Part Number: 100RN21S-4E1BB (Oem only 6-8wks authorized line.) Part Number: 100RN21S-4E1CB (Oem only 6-8wks authorized line.) Part Number: 100RN21S-4E6AB (Oem only 6-8wks authorized line.) Part Number: 100RN21S-4E6BB (Oem only 6-8wks authorized line.) Part Number: 100RN21S-4E6CB (Oem only 6-8wks authorized line.) Part Number: 100RN21S-4F1AB (Oem only 6-8wks authorized line.) Part Number: 100RN21S-4F1BB (Oem only 6-8wks authorized line.) Part Number: 100RN21S-4F1CB (Oem only 6-8wks authorized line.)