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1983 Honda CB450SC Nighthawk Stop Lamp and Safety Switches

Identify the control and circuit when choosing a switch for your 1983 CB450SC Nighthawk. The rear brake operates a stop-lamp switch, while the clutch lever operates a starter safety switch. Buying by the correct position and function avoids confusing two small components with different jobs.

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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 CB1100 CB1000 clutch lever brake light switch 35330-413-003

Honda CB Clutch Lever Brake Light Switch ~ Replaces 35330-413-003

$15.95 USD
29-7029
Replace your front clutch lever safety stop switch with this Clutch Lever Stop Switch, replacing OEM #35330-413-003. This is the switch that allows the...
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1983 Honda CB450SC Nighthawk · Switches & Sensors Buying guide

Match the control position to the switch’s documented function

12-0008 is the mechanically operated rear brake-light switch. 29-7029 cross-references 35330-413-003 at the clutch perch and permits starter operation with the lever pulled. The detailed clutch-switch description clarifies the brake-light wording that appears in its title.

Parts to consider

Honda CB Rear Brake Light Switch Mechanically operated rear stop switchOne switch is supplied for the rear-brake control, where one is used per compatible motorcycle. The 1983 CB450SC appears in its application.View part Honda CB Clutch Lever Brake Light Switch ~ Replaces 35330-413-003 35330-413-003 clutch-perch switchOne starter safety switch is supplied. It permits starting with the clutch lever pulled; it should not be chosen as a front brake-lamp replacement.View part

Use the detailed function to settle the clutch-switch choice

The clutch-switch FAQs expressly identify starter-interlock operation despite the title’s brake-light phrase. Its Honda reference and lever-perch location are the useful ordering details. The rear stop switch instead serves the brake-lamp circuit from the rear control; the two listings are not an interchangeable switch pair.

Check the circuit and control together before replacing a switch

For a failed rear stop lamp, the product guidance names the bulb, fuse, ground, connectors and wiring as possible checks alongside switch continuity. For the clutch switch, inspect the lever contact and connections according to the correct wiring information. Retain the safety circuit rather than planning a bypass.

Control Switch References FAQs

How should I interpret the brake-light phrase on the clutch-switch title?

The description and FAQs identify 35330-413-003 as the clutch-lever starter safety switch. Choose it for that documented interlock at the compatible perch. The title’s brake-light phrase does not establish fit for a front brake-lamp control.

Which connections should I inspect before ordering a clutch safety switch?

Inspect the lever contact point, connectors and wiring, as the clutch-switch FAQ recommends. Any continuity check should follow the motorcycle’s wiring diagram. Keep the starter safety circuit intact while determining whether the switch itself requires replacement.

Could a different part be needed when the rear brake lamp stays unlit?

The rear-switch FAQ also calls for checking bulb filaments, fuse, ground, connectors and wiring. A replacement switch will not repair a failed bulb or open circuit. Identify the fault before treating the switch as the only required purchase.

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