1971 Honda CB450K Parts

Parts and fitment guide for your 1971 CB450K

This collection follows our catalog application for the 1971 Honda CB450K4. 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 1971 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 CB450K4 (1971)

This page follows our catalog’s 1971 CB450K4 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.

Choose the correct carb kit for your K4

The 1971 K4 falls within the stated application for carb kit 48-1395, which specifies carburetors 14H and 14L. Kit 48-1396 separately lists 1972–74. These are merchant application ranges, so identify the installed carburetors rather than using the neighbouring model year's kit as a substitute.

Fitment questions

Which detail helps distinguish the 1970–71 front pad set from the later set? The 29-3503 listing specifies one locating pin and one locating tab, with pad sizes 50 × 54 × 20mm and 50 × 26.7 × 12.7mm. The 1972–74 CB450K uses a separate catalog listing. Compare the removed pads and locating features, especially if the brake has been changed.

Will replacement coil 17-6923 use the original mounting orientation? Not necessarily. The replacement listing specifies approximately 80mm mounting-hole centres and warns that its wires exit differently from a beige Honda coil. Compare the bracket and lead route before installation; a matching application does not mean the old orientation will work.

Related CB450K collections

• 1970 CB450K parts
• 1972 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.