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1985 Honda CB450SC Nighthawk Switch Reference Decisions

Choose a switch for your 1985 CB450SC Nighthawk by its control location and the circuit it serves. The rear pedal switch, clutch-perch safety switch and oil-pressure warning switch have different applications. Match the original reference and inspect the adjoining connection before ordering the replacement.

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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...
Honda CB1100 CB1000 CB700 CB650 CB550 oil pressure switch

Honda CB Oil Pressure Switch ~ Genuine Honda OEM

$69.95 USD
99-5094
Upgrade or restore your classic Honda motorcycle with this Genuine Honda Oil Pressure Switch — precision‑engineered and made in Japan. This authentic replacement part...
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1985 Honda CB450SC Nighthawk · Switches & Sensors Buying guide

Match the control position and reference before the switch title

The rear stop-light switch is mechanically operated, while the clutch-perch switch permits starter operation with the lever pulled. The oil-pressure switch serves the warning circuit. Compare those specific functions and original details when deciding which item to buy.

Parts to consider

Honda CB Rear Brake Light Switch Rear pedal stop-light switchOne mechanically operated switch is supplied for the compatible rear-brake control. Its application list expressly includes the 1985–86 CB450SC.View part Honda CB Clutch Lever Brake Light Switch ~ Replaces 35330-413-003 Clutch starter-safety switchOne replacement for Honda 35330-413-003 is supplied for the compatible perch. The full description identifies starter-safety operation when the clutch lever is pulled.View part Honda CB Oil Pressure Switch ~ Genuine Honda OEM Oil-pressure warning replacementOne genuine Honda switch is supplied for a compatible engine. Compare the listed Honda references and the fitted terminal and sealing details before ordering.View part

Use the clutch switch’s full function description

The clutch item’s title contains brake-light wording, but its detailed listing identifies the starter-safety function. Match Honda 35330-413-003 at the compatible clutch perch and inspect the lever contact, connectors and wiring. Do not select it as the rear pedal’s stop-light switch.

Treat a warning symptom as a reason to check the system

The oil-switch listing requires actual oil-pressure verification if the warning remains on, and the rear stop-light listing names bulbs, fuse, ground and wiring checks. Those checks help establish whether a switch is needed. They prevent an order based solely on a warning lamp or failed stop-light symptom.

Control & Warning Switches FAQs

Which checks help confirm the clutch-perch switch is the item I need?

Compare Honda 35330-413-003, the lever contact point and the fitted connectors and wiring. Its stated purpose is starter-safety operation with the clutch lever pulled. Use the wiring diagram for continuity checks rather than bypassing the safety circuit.

What should I inspect before buying a switch for a failed rear brake light?

Check bulb filaments, fuse, ground, connectors and wiring as well as switch continuity. The listing explains that a replacement switch cannot correct those separate faults. Identify the required rear-pedal switch only after assessing the circuit and mechanical control.

What original details should I match when ordering the oil-pressure switch?

Compare the Honda reference, electrical terminal and sealing arrangement with the original switch. The listed references include 35500-MJ4-024, 35500-MB9-004, 35500-MJ4-014, 35500-MJ0-004 and 35500-MJ4-004. One switch is supplied for a compatible engine; warning symptoms still require proper pressure assessment.

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