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1970 Honda CB450K Left & Right Bar Switches

Choose the left or right switch assembly for your 1970 CB450K from the controls and wiring fitted. The two sides have different Honda references. The left listing specifies external wiring, so compare routing as well as housing and connection before planning a replacement.

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Currently viewing Handlebar Switches

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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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1970 Honda CB450K · Handlebar Switches Buying guide

Identify the side and compare its wiring arrangement

The black left assembly references Honda 35250-300-033 and routes wires outside the bar. The right brake-side assembly references 35300-319-670. Use those individual descriptions and the actual controls to assess each replacement; one side’s routing detail does not define the other.

Parts to consider

Honda CB Bar Switch Assembly ~ Left (Clutch) Side ~ Replaces 35250-300-033 Left clutch-side assembly with external wiringBlack left bar switch assembly referencing Honda 35250-300-033. Wires run outside the handlebar. Compare its housing, connection and routing with the control being replaced, particularly on a modified handlebar.View part 1970-72 Honda CB450K / SL350K0 Right-Side Bar Switch Assembly (Brake) ~ Replaces 35300-319-670 Right brake-side assembly: 35300-319-670Right bar switch assembly listed for the 1970 CB450K and referencing Honda 35300-319-670. Match the fitted right-side housing and wiring; the description does not provide a complete connector or mounting-dimension specification.View part

Keep the reference attached to the side being serviced

The left and right products are distinct assemblies, with references beginning 35250 and 35300 respectively. Inspect the control you intend to replace and compare its housing and wire connections. The left listing also links a part-specific wire-identification guide; check it against the retained wiring before planning connections.

Plan routing from the selected product’s own description

The left assembly expressly uses wiring outside the handlebar. The right description does not give an equivalent routing statement or full connector layout. Compare the fitted installation and confirm any missing details before ordering where a different bar, loom or control has been installed.

Handlebar control buying questions

What should I check if my current left switch wires run inside the bar?

The replacement left assembly explicitly routes its wires outside the handlebar. Compare the bar, available routing and harness connection with that arrangement. Confirm the requirements of the planned installation before treating it as an internal-wiring replacement.

Where can I check the left assembly’s wire-identification information?

The left product listing links a guide for this left-side assembly. That guide does not specify a motorcycle year or model, so compare it with the retained wiring and resolve any unclear function before planning connections. The right assembly needs its own connection comparison; do not transfer the left guide across.

Can I choose the right assembly just because it is on the brake side?

Use Honda reference 35300-319-670 alongside the fitted housing, mounting and wiring. The side identifies where the assembly is intended, but does not establish compatibility with every replacement control or handlebar arrangement. Confirm those details if the controls have changed.

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

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