1973 Honda CB500K Parts

Parts and fitment guide for your 1973 CB500K

This collection covers listed parts for the 1973 Honda CB500K Four, catalogued here as CB500K2. Match the model, year and installed component when choosing repair parts.

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 CB500K

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

• Clutch cable — listed for the 1971–73 CB500K; compare cable routing and handlebar changes.
• Fork oil seals — listed replacement: 35 × 48 × 10.5/11 mm set; check the installed forks.
• Oil filter — paper filter element; O-rings and housing hardware are separate.

Identify your CB500K2 (1973)

Record the complete frame and engine markings and compare them with documents for the motorcycle’s original market. The linked merchant chart is a starting reference, not a verified factory serial range or proof of build date.

View the CB500K reference chart

Use our Honda CB model guide for help locating identifiers.

Prepare for routine service

For the 1973 CB500K, carb kit 73-0829 lists a float needle and seat plus metering parts, while float 20-6511 is a separate item with its pin. Float-setting gauge 73-0888 explicitly lists this model, but its description gives no numeric float-height setting. Use the correct service information for the fitted carburetors.

Fitment questions

Can the shared CB500K/CB550F holder set determine which rebuild kit to buy? Holder set 48-1476 lists both motorcycles, but their internal repair kits are separate: 73-0829 for CB500K and 48-1699 for CB550F. Shared mounting-rubber coverage does not establish identical internal carburetor parts.

Is the listed friction-plate count the same as on the Nighthawk that shares the plate? No. Plate 39-1112 lists seven pieces for the 1971–73 CB500K and six for the CB550SC. These are model-specific quantities in the product description, not a seven-piece package. Check the clutch assembly and any additional steel plates or springs separately.

Related CB500K collections

• 1972 CB500K parts
• All CB500K parts

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