Genuine Honda countershaft oil seal is found behind the front sprocket or in the transmission of shaft driven models.
A great way to isolate where an oil leak is coming from is to clean the area thoroughly, put some baby powder on the area you suspect it's coming from, then go for a 5-10 minute ride. Voila, the leaks location is revealed! 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!
*Sometimes a light coating of three-bond or Hondabond is necessary to keep the seal from popping back out if you have a recurring problem. We have Hondabond available.
Honda Part Numbers: 91205-425-003, 91205-422-013, 91205-422-015
Dimensions: 40X62X13
Fits Honda:
CB750C Custom - 1980-1982
CB750F Super Sport - 1979-1982
CB750K Four - 1979-1982
CB750L Limited Edition - 1979
CB750SC Nighthawk - 1982-1983
CB900C Custom - 1980-1982
CB900F Super Sport - 1981-1982
CB1000C Custom - 1983
CBX Super Sport - 1979-1982
CB1100F Super Sport - 1983