1972 Honda CB450K Parts

Parts and fitment guide for your 1972 CB450K

This collection follows our catalog application for the 1972 Honda CB450K5. 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 1972 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 CB450K5 (1972)

This page follows our catalog’s 1972 CB450K5 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.

Use the later CB450 carb listing

Carb kit 48-1396 specifically lists the 1972–74 five-speed CB450K and one carburetor per kit. Its current description does not give a carb-body code or full jet list. Confirm those details if you need replacement jets; the stated year range alone cannot tell you which brass parts are supplied.

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.

Which tail-light lens does gasket 11-2163 belong with? The listing pairs gasket 11-2163 with lens 11-2259 and includes the 1972–74 CB450K application. Confirm the installed lens before ordering, since the motorcycle's year alone cannot identify a replacement lamp fitted during an earlier repair.

Related CB450K collections

• 1971 CB450K parts
• 1973 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.