1973 Honda CB450K Parts

Parts and fitment guide for your 1973 CB450K

This collection follows our catalog application for the 1973 Honda CB450K6. Use that label to narrow the parts list, then confirm the installed component and the product’s stated application before ordering.

Browse by repair

• Engine parts — engine seals, hardware and service items.
• Fuel-system parts — carburetor, intake and filter listings.
• Electrical parts — ignition and electrical service items.
• Brake & clutch parts — braking and clutch repair listings.
• Suspension & wheels — wheel bearings, suspension parts and tools.
• Exhaust parts — exhaust components and hardware.

Selected parts for the 1973 CB450K

Check the product application, dimensions and pack quantity before ordering.

• Front wheel bearing — the listing specifies a 6302-2RS bearing and two used per front wheel; order the quantity needed.
• Swingarm bushings — listed as a set of two bronze bushings; compare the fitted swingarm before ordering.
• Spark plug cap — YB05F replacement cap, sold individually.

Identify your CB450K6 (1973)

This page follows our catalog’s 1973 CB450K6 application. Compare the complete frame and engine markings with documentation for the motorcycle’s original market; registration year or paint colour alone is not enough. A verified frame-and-engine serial range is not provided here.

Use our Honda CB model guide for help locating identifiers.

Check quantity before an engine or chassis repair

For the 1973 K6, the linked front-bearing listing specifies a 6302-2RS bearing and two used per front wheel. The bronze swingarm listing supplies a pair of bushings. Match the fitted wheel and swingarm before ordering, particularly where either assembly has been replaced.

Fitment questions

Why are two different pad measurements listed for the front set? Set 29-3501 lists the two pads as 52 × 20mm and 52 × 12.8mm. Compare both removed pads rather than matching only one. Its CB450K application is 1972–74; the 1970–71 set is a different listing with different locating features.

Does fitting coil 17-6923 also replace the plug cap? The coil is supplied with attached wires, but its description does not list a plug cap. The linked YB05F cap is sold separately. Include a cap only if the fitted cap needs replacement, and confirm the plug-end connection before ordering.

Related CB450K collections

• 1972 CB450K parts
• 1974 CB450K parts
• All CB450K parts

Need help matching a part? Contact VintageCB750 with your model year, original market, frame and engine markings, and component photos.