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1971 Honda CB450K Left & Right Bar Switch Assemblies

Compare each handlebar control on your 1971 CB450K separately before choosing a switch assembly. The left product specifies black finish and external wire routing; the right product has its own Honda reference. Check retained housings, wiring and connections rather than assuming the two sides match.

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Honda CB750 CB500 bar switch assembly left (clutch) side 35250-300-033

Honda CB Bar Switch Assembly ~ Left (Clutch) Side ~ Replaces 35250-300-033

$79.95 USD
12-0306
Fit left-side handlebar controls on your early SOHC CB with this Bar Switch Assembly for the Clutch Side in black, replacing OEM #35250-300-033. Wiring...
New
Honda CB450K SL350K0 right-side bar switch assembly (brake) 35300-319-670

1970-72 Honda CB450K / SL350K0 Right-Side Bar Switch Assembly (Brake) ~ Replaces 35300-319-670

$69.95 USD
99-5005
Upgrade or restore your classic Honda motorcycle with this Right‑Side Bar Switch Assembly — a high‑quality replacement for the factory brake side switch. This...
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1971 Honda CB450K · Handlebar Switches Buying guide

Use the correct side and its documented connection details

The left clutch-side assembly references Honda 35250-300-033 and routes its wiring outside the handlebar. The right brake-side assembly references 35300-319-670. The right description does not document an individual switch-function list or connector specification for planning a wiring change.

Parts to consider

Honda CB Bar Switch Assembly ~ Left (Clutch) Side ~ Replaces 35250-300-033 Black left clutch-side switch assemblyLeft handlebar assembly referencing Honda 35250-300-033, with black finish and wiring outside the handlebar. Compare the housing attachment, wire route and connections against the controls you will use.View part 1970-72 Honda CB450K / SL350K0 Right-Side Bar Switch Assembly (Brake) ~ Replaces 35300-319-670 Right brake-side switch assemblyRight-side assembly referencing Honda 35300-319-670 and listed for the 1971 CB450K. Compare the retained housing and wiring. Individual functions, pin assignments and terminal dimensions are not documented for a custom connection plan.View part

Check each side’s connection rather than its appearance alone

The left and right listings identify separate sides and Honda references. Compare the actual clamp or housing attachment and the wires retained on each side. Where earlier work changed the harness or controls, confirm the required terminals and switch functions before selecting either assembly for the altered arrangement.

Keep the instruction guide within its stated scope

The left listing links a wire-identification guide, but that guide does not identify a motorcycle model or year. Compare it with the retained wiring and resolve unclear functions before planning connections. It does not document the right assembly’s wiring, and its color descriptions do not establish a CB450K-specific conversion.

Handlebar control replacement questions

Will a different handlebar change the left-side selection check?

The left assembly explicitly uses external wiring. Compare the proposed bar, control attachment and wire route with that arrangement. Confirm any missing mounting or wire-reach details needed by the changed bar before treating the original motorcycle application as sufficient.

Can I use the left instruction guide to connect the right assembly?

The linked guide is identified for the left assembly and does not state a motorcycle model or year. The right listing has its own reference without a documented pin or function map. Establish the right assembly’s connections separately instead of transferring the left guide.

What should I establish before replacing altered right-side wiring?

Compare the fitted control, retained harness and required operating functions. The right product description does not identify individual functions or a complete terminal layout. Confirm the needed connection information before ordering for an installation that no longer uses its original wiring.

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