Fork oil seals, external dust seals and their retaining rings are separate parts for the 1979 CB650. Inspect the fork assembly and compare dimensions before ordering. A front-end swap can change the required seals even when the frame and model year remain original.
1979 Honda CB650 Motorcycle Parts1979 Honda CB750F Motorcycle Parts1979 Honda CB750K Motorcycle Parts1980 Honda CB650 Motorcycle Parts1980 Honda CB650C Custom Motorcycle Parts1980 Honda CB750F Motorcycle Parts1980 Honda CB750K Motorcycle Parts1981 Honda CB650 Motorcycle Parts1981 Honda CB650C Custom Motorcycle Parts1981 Honda CB750F Motorcycle Parts1981 Honda CB750K Motorcycle Parts1981 Honda CB900F Motorcycle Parts1982 Honda CB650 Motorcycle Parts1982 Honda CB650SC Nighthawk Motorcycle Parts1982 Honda CB750F Motorcycle Parts1982 Honda CB750K Motorcycle Parts1982 Honda CB750SC Motorcycle Parts1982 Honda CB900F Motorcycle Parts1983 Honda CB1000C Motorcycle Parts1983 Honda CB750SC Motorcycle PartsHonda CB Electrical & Ignition PartsHonda CB Fork Tubes, Springs, Seals & BootsHonda CB Headlights, Bulbs & Headlamp PartsHonda CB Suspension & Wheel PartsHonda CB Turn Signals, Lenses, Stems & ReflectorsHonda CB1000 Motorcycle Parts by Model & YearHonda CB650 Motorcycle Parts (1979–1982)Honda CB650 Motorcycle Parts by Model & YearHonda CB650C Custom Motorcycle Parts (1980–1981)Honda CB650SC Nighthawk Motorcycle Parts (1982–1985)Honda CB750 DOHC Parts (1979–1982)Honda CB750 Motorcycle Parts by Model & YearHonda CB750F Motorcycle Parts (1975–1982)Honda CB750K Motorcycle Parts (1969–1982)Honda CB750SC Nighthawk Motorcycle Parts (1982–1986)Honda CB900 Motorcycle Parts by Model & YearHonda CB900F Supersport Motorcycle Parts (1981–1982)New ItemsSeries 3: CB700-750SC (82-86)Series 4: CB900-1100 (80-83)Series 5: CB650 (79-82)
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Compare the seal specification and each separate package
The oil seals, dust seals and metal stopper rings are three separate products. Their package counts are clear, but their application ranges are not identical; identify each required part rather than treating the selection as one universal fork kit.
Oil-seal set 27-1007 supplies two seals with the stated 35 × 48 × 10.5/11 mm size. Dust-seal set 27-1049 supplies two dust seals. Both are described as made in Japan; neither package description lists the separate stopper-ring set.
Keep the metal-ring identity on the parts list
Stopper-ring pack 73-0940 supplies two metal rings and references 51447-KL4-951. Compare that reference with the required fork parts before adding the rings; the seal dimensions do not establish the ring’s application.
Buying questions
Does 10.5/11 mm mean the oil-seal set supplies two different size options?
The record states two seals and gives the combined notation 35 × 48 × 10.5/11 mm, but does not explain the slash or describe alternative sizes in the pack. Obtain a dimensioned specification before treating either figure as a selectable option for a different fork.
Does the stopper-ring pack cover every CB650 year listed for the seals?
The detailed standard-CB650 lists differ: both seal products list 1979–82, while the stopper rings list 1979–80. Match each product independently; shared seal coverage does not extend the ring listing to another year or identify the parts in a swapped fork.
Not sure which part you need?
Send your model and year, plus photos of your existing part and any changes to the original setup.