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1972 Honda CB350K4 Rear Brake-Light Switch

The switch offered here serves the rear brake light on the 1972 CB350K4. Before replacing it, identify the rear switch and compare its mounting, leads and pedal-operated connection. A problem at the lamp or wiring can require a different repair from a failed switch.

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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...
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1972 Honda CB350K4 · Rear Brake-Light Switch Buying guide

Check the rear stop-switch connection before ordering

This is a focused rear brake-switch choice. Inspect how the existing switch is mounted and operated, then compare the connectors on the motorcycle instead of selecting by the general switches-and-sensors category name.

Parts to consider

Honda CB Rear Brake Light Switch Rear brake-light switchReplacement rear stop-light switch with explicit CB350K 1970–72 application.View part

Identify the faulty part first

Honda lists the K4 rear switch and its operating spring separately. Inspect both when tracing a fault, along with the wiring and lamp. A new switch will not repair a damaged or missing spring; check that retained connection before finalizing the order.

Allow for earlier wiring repairs

A replacement harness, different lamp or repaired connector can change what is fitted to a vintage motorcycle. Compare the replacement’s terminals and available lead routing with those on the bike. Use the Honda service manual for adjustment and electrical checks after the repair.

Buying questions

Is this the switch for the rear pedal?

Yes. It is identified as the rear brake-light stop switch for the supported CB350K application. Do not select it for a front-brake control merely because both operate the stop lamp.

Should I order it if the brake light stays on?

Confirm the cause first. Check the switch’s operation and its connection to the rear pedal, as well as the circuit. A new switch will not correct an unrelated wiring or linkage problem.

What should I compare before replacing a non-original switch?

Photograph the existing mounting, lead terminals and pedal-operated connection. Compare those details with the replacement, and identify any altered fittings before ordering rather than assuming an earlier replacement retained the original arrangement.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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