Genuine Honda crankshaft oil seal. This seal was used on the left or right side depending on your model. On the CB650SC it was used on the right side, on the CB350F/400F/550 it was used on the left side. We also have the right side seal.

Clean everything thoroughly and install the new seal with a deep socket with the same outer diameter as the seal or a seal driver. Make sure to push it in evenly. An oil tight engine puts the mind at ease and it keeps the engine lubricated!
Honda part number: 91201-323-005
Dimensions: 30 X 45 X 8

Fits Honda: CB350F - 1972-1974
CB400A Hondamatic - 1978
CB400F Super Sport - 1975-1977
CB400T Hawk - 1980-1981
CB400TI Hawk I - 1978-1979
CB400TII Hawk II - 1978-1979
CM400A Hondamatic - 1979-1981
CM400C Custom - 1981
CM400E - 1980-1981
CM400T - 1979-1981
CB450SC Nighthawk - 1982-1986
CB450T Hawk - 1982
CM450A Hondamatci - 1982-1983
CM450C Custom - 1982
CM450E - 1982-1983
CMX450C Rebel - 1986-1987
CB500K - 1971-1973
CB550F Super Sport - 1975-1977
CB550K - 1974-1978
CB550SC Nighthawk - 1983
CB650 - 1979-1982
CB650C Custom - 1980-1981
CB650SC Nighthawk - 1982-1985