About the Honda CB450
Carburetor, engine and chassis parts for three very different CB450 projects.
Honda introduced the DOHC CB450 in 1965 as a flagship developed primarily for the American market. The CB450 name later appeared on the Hawk and Nighthawk. For today’s restorer, the full model code is the starting point: the earlier K twin and the later T and SC models have different engine and chassis parts.
Choose your CB450 model
CB450K DOHC twin parts cover earlier restorations, with carb-kit year splits and fork-size comparisons. CB450T Hawk parts focus on the 1982 T model. CB450SC Nighthawk parts include separate 1982 and 1983–1986 carb kits. Keep any other suffix shown on your motorcycle’s paperwork when asking us to identify a part.
Know your CB450 before choosing partsCB450 repair checkpoints
Compare the model years, dimensions and component differences before choosing parts.
CB450K
Restoring the DOHC twin
Start with K-model engine and carburetor parts. The two standard carb kits divide at 1971/1972.
Parts checkpoint: Check carburetor markings on bikes with replacement bodies.
CB450T
Servicing the 1982 Hawk
The Hawk examples below include carburetor and gasket kits, plus rear drum-brake shoes.
Parts checkpoint: Keep the T suffix when comparing a shared T/SC listing.
CB450SC
Rebuilding a Nighthawk
Choose the 1982 carb kit or the separate 1983–1986 kit before planning the fuel-system repair.
Parts checkpoint: Engine, fork and clutch parts can have different year ranges.
Identify your motorcycle before orderingCB450 identification checklist
These details establish the correct branch of the CB450 range before a repair order is assembled.
- Model: Complete suffix, model year and original sales market if known.
- Frame and engine: Record both markings, especially when an engine has been replaced.
- Carburetors: Identification markings and photos of the fitted bodies and bowls.
- Chassis: Fork dimensions and the position of the brake assembly being repaired.
Contact PartsNMore with your model year, frame and engine markings, and clear photos of the component being repaired.