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1972 Honda CB450K Front & Rear Stop-Switch Repairs

Choose brake-light components for your 1972 CB450K after locating the switch or wiring section requiring repair. The front hydraulic switch states its thread; the rear switch needs its own attachment check. Compare the retained loom before adding the separately described front sub-harness.

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Honda CB750 CB550 CB500 CB450 CB400 rear brake light switch

Honda CB Rear Brake Light Switch

$10.33 USD
12-0008
Replace your rear brake light switch with this Rear Brake Light Stop Switch. Exceptionally broad fitment across the SOHC CB750 lineup and virtually the...
Honda CB750 CB550 CB500 hydraulic stop light switch 35350-300-006

Honda CB Hydraulic Stop Light Switch ~ Replaces 35350-300-006

$24.95 USD
29-7021
Replace your hydraulic brake light switch with this Hydraulic Brake Light / Stop Switch, replacing OEM #35350-300-006 / #35350-300-016. 10mm x M1.25 thread.Key Features•...
Honda CB550 CB500 front brake light switch sub harness 35345-319-000

Honda CB Front Brake Light Switch Sub Harness ~ Replaces 35345-319-000

$7.00 USD
73-0104
Replace your front stop switch sub harness with this Front Stop / Brake Switch Sub Harness, replacing OEM #35345-319-000.Key Features• Front stop / brake...
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1972 Honda CB450K · Switches & Sensors Buying guide

Check front and rear switching connections independently

The front hydraulic product references Honda 35350-300-006 / 35350-300-016 and specifies M10 × 1.25. The rear brake-light switch is another component. Front wiring is separately offered as sub-harness 35345-319-000, without a supplied switch or whole loom itemized in that description.

Parts to consider

Honda CB Rear Brake Light Switch Rear brake-light replacement switchRear stop switch listed for the 1972 CB450K. Compare the removed switch, attachment and electrical connection. No complete mounting dimensions or numerical wire length are supplied for resolving an altered installation.View part Honda CB Hydraulic Stop Light Switch ~ Replaces 35350-300-006 Front hydraulic switch with stated threadM10 × 1.25 stop switch referencing Honda 35350-300-006 / 35350-300-016. Compare the port, termination and retained front brake arrangement before choosing this threaded switch.View part Honda CB Front Brake Light Switch Sub Harness ~ Replaces 35345-319-000 Separate front stop-switch sub-harnessWiring component referencing Honda 35345-319-000. Match both its switch and retained-harness ends, with the route needed between them. Its description does not itemize the front switch as part of this purchase.View part

Resolve modified ports before selecting the hydraulic switch

A changed master or brake connection can alter the port and electrical termination. Compare those requirements with the switch’s M10 × 1.25 specification and Honda references. Confirm any additional connection details needed by the fitted equipment; thread size alone cannot identify every custom switching arrangement.

Count wiring and switch repairs from the fitted components

The rear switch and front hydraulic switch have different stated positions, and the front sub-harness addresses a wiring section. Inspect each retained component to decide what requires renewal. Check contents independently instead of assuming that a switch purchase also supplies the connection wiring or main loom.

Matching stop-switch positions and connections

What if the hydraulic port matches but its electrical connection differs?

Compare the termination required by the retained loom as well as the M10 × 1.25 port. The switch description does not give a full terminal drawing. Confirm missing electrical connection details before selecting it for modified wiring.

Can I assess the rear switch for a relocated mounting from its model application?

Compare the actual attachment and required wire path at the new position. The description does not state mounting dimensions or lead length, so confirm the measurements needed for relocation. The motorcycle application alone cannot establish that reach.

Does a sub-harness reference identify a replacement front switch?

Reference 35345-319-000 identifies the wiring component described. The front hydraulic switch has separate references and connection checks. Inspect which of those components needs replacement and match the retained connections before building the order.

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