1981 Honda CB750K Parts

Parts and fitment guide for your 1981 CB750K

Find listed service parts for the 1981 Honda CB750K, including the stock-airbox filter, carburetor-to-airbox boots and paper oil-filter element selected here. Identify any intake or filter-housing changes before choosing replacements.

Browse by repair

• Engine parts — filters, seals and engine components.
• Fuel-system parts — carburetors, air filters and fuel delivery.
• Electrical parts — ignition, switches and charging parts.
• Brake & clutch parts — braking and clutch components.
• Suspension & wheels — fork seals, bearings and suspension parts.
• Exhaust parts — exhaust components, gaskets and hardware.

Selected parts for the 1981 CB750K

Check each listing for model fitment, dimensions and what is included before ordering.

• Stock air filter — replaces 17211-425-000; compare the original-style airbox before ordering.
• Airbox boot set — four carb-to-airbox boots in two patterns; replacement clamps are separate.
• Oil filter — paper element referenced to 15410-426-010 / 15410-422-004; O-rings and hardware are separate.

Identify your CB750K (1981)

Record the complete frame or VIN marking and the engine stamping before ordering model-specific parts. Match them to Honda documentation for the motorcycle’s original market.

• Frame / VIN — copy every stamped character, including the prefix.
• Engine number — record the complete marking separately from the frame number.

A chart abbreviation is not a complete VIN. Keep a clear photograph of the frame marking and identification plate so every character can be checked.

Use the linked chart as a model reference alongside original-market records. Its starting entry alone does not establish a production cutoff or build date.

View the CB750 reference chart

For help locating and comparing identifiers, see our Honda CB model identification guide.

Check the two boot patterns and filter hardware

Airbox boot set 02-6555 contains four boots: two replacements for 17253-425-000 and two for 17254-425-000. Keep those two patterns in mind when comparing the removed boots. Clamps are separate; the listing specifies four 58–60mm band clamps 15-0690 or four gear clamps 15-0670. Oil filter 15-0002 is the paper element; replacement O-rings, springs and washers are offered separately.

Related CB750K collections

• 1980 CB750K parts
• 1982 CB750K parts
• All CB750K parts

Need help checking a part? Contact VintageCB750 with your model, frame and engine numbers, and photos of the component you are replacing.