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1971 Honda CB450K Brake-Light Switches & Wiring

Identify the front or rear brake-light component being repaired on your 1971 CB450K before choosing a switch. The hydraulic front product gives a thread size; the rear switch and front sub-harness need separate connection comparisons. Inspect the retained wiring alongside the switch itself.

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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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1971 Honda CB450K · Switches & Sensors Buying guide

Match the switch position and the wiring repair scope

The front hydraulic switch names M10 × 1.25 threads and Honda replacement references. The rear product is separately described as a rear brake-light switch. The front sub-harness references 35345-319-000 and covers a wiring component, without itemizing a supplied switch or complete loom.

Parts to consider

Honda CB Hydraulic Stop Light Switch ~ Replaces 35350-300-006 Front hydraulic brake-light switchFront stop switch with M10 × 1.25 thread, referencing Honda 35350-300-006 / 35350-300-016. Compare the actual port and wiring on the fitted brake system before ordering.View part Honda CB Rear Brake Light Switch Rear brake-light stop switchRear brake-light switch listed for the 1971 CB450K. Compare the switch being removed, its attachment and wiring connection. The description does not give a complete mounting or lead-length specification for changed components.View part Honda CB Front Brake Light Switch Sub Harness ~ Replaces 35345-319-000 Front brake-switch sub-harnessWiring component referencing Honda 35345-319-000. Match the retained front switch and harness connections. Its description names the sub-harness without a supplied stop switch, main loom or full electrical repair package.View part

Assess a changed front brake connection directly

The hydraulic switch’s specified thread identifies one necessary fit check. Compare the actual port and electrical termination on the retained master and brake arrangement as well. A custom master or changed switch position may require details beyond the thread size; confirm any missing connection measurement before ordering.

Separate the switch purchase from its wiring

A front stop-switch sub-harness and a brake-light switch are separately described components. Compare the retained switch, wiring ends and route to decide which part needs renewal. Neither listing establishes that purchasing one also replaces the other or renews the complete motorcycle harness.

Brake-light component buying questions

What if my replacement master has a different switch arrangement?

Identify the port and switching connection on that master before selecting the hydraulic product. This switch specifies M10 × 1.25 and particular Honda references; those facts do not establish every custom master’s connection. Compare the required fittings and resolve missing specifications first.

Does the rear-switch description give a lead length for altered routing?

It does not provide a lead-length specification or complete attachment dimensions. Compare the installed switch and required wire path, then confirm the measurements needed by any changed mounting. The rear application alone cannot establish reach on modified wiring.

Can the front sub-harness be selected without checking the switch end?

Compare both the switch end and the retained loom end. The description supplies its Honda reference but no full connector drawing or wire-length specification. Confirm the missing details where either connection or the switch position has been altered.

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