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1973 Honda CB500K Brake & Warning-Light Controls

Order a replacement switch for your 1973 Honda CB500K by its circuit and operating method. A mechanical rear stop switch, hydraulic front switch and oil-pressure warning switch do different jobs. Inspect the relevant connections before treating a non-working lamp as proof that its switch is faulty.

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Honda motorcycle parts

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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 CB900 CB750 CB650 CB550 CB500 oil pressure switch 37240-P13-013

Honda CB Oil Pressure Switch ~ Replaces 37240-P13-013

$23.95 USD
73-0825
Replace your oil pressure switch with this Oil Pressure Switch, replacing OEM #37240-P13-013.Key Features• Oil pressure switch• Replaces OEM #37240-P13-013• Honda part name: Switch...
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Honda CB750K CB550K CB500K pilot lamp turn signal panel dash harness 37581-323-000

1971-76 Honda CB750K / CB550K / CB500K Pilot Lamp Turn Signal Panel Dash Harness ~ Replaces 37581-323-000

$44.95 USD
11-2181
Restore your instrument panel's indicator lights with this Pilot Lamp Indicator Panel Dash Harness, replacing OEM #37581-323-000 / #37581-374-670. Comes complete with bulbs.Key Features•...
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 CB750 CB500 CB350 horn button

Honda CB750 / CB500 / CB350 Horn Button

$7.00 USD
12-0036
Replace a worn horn button with this Horn Button with Spring. Works as a horn button or a starter button, fitting all SOHC CB750s,...
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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1973 Honda CB500K · Switches & Sensors Buying guide

Compare actuation, threaded connection and warning function

The front stop switch is pressure-operated with M10 x 1.25 thread. The rear switch is mechanically operated. The oil-pressure item controls an on/off warning light and is not a sender for a variable pressure gauge.

Parts to consider

Honda CB Hydraulic Stop Light Switch ~ Replaces 35350-300-006 Front hydraulic stop-light controlPressure-operated switch referenced to Honda 35350-300-006 and 35350-300-016. Its M10 x 1.25 thread must match the fitted hydraulic connection.View part Honda CB Rear Brake Light Switch Rear mechanical stop-light controlOne rear brake-light switch operates mechanically at the listed brake-control application. It is different from a hydraulic pressure switch.View part Honda CB Oil Pressure Switch ~ Replaces 37240-P13-013 Oil-pressure warning-light switchReferences Honda 37240-P13-013. Its on/off function suits the warning circuit rather than a variable pressure gauge.View part

Related parts: Separate front stop-switch wiring

Inspect the circuit before selecting a switch

A failed lamp can result from its bulb, ground, wiring or connector as well as switch contacts. Check which brake control is affected and compare that switch’s operating method. The front wiring sub-harness is a separate repair piece, so damaged wiring should not be confused with a mechanical or hydraulic switch failure.

Treat a pressure warning as a separate diagnosis

The warning switch cannot restore oil pressure when the underlying problem is inside the lubrication system. Confirm the cause of an active warning rather than using a replacement switch as an assumed cure. An aftermarket pressure gauge also needs its own compatible sender, not simply this warning-light component.

Switches & Sensors FAQs

Which thread and operating type must match the front brake-light switch?

The front switch is hydraulic and uses M10 x 1.25 thread, replacing Honda 35350-300-006 or 35350-300-016. Match that connection and pressure-operated function to the fitted brake system; the rear switch is mechanically operated.

Is the oil-pressure item a variable gauge sender?

It is an on/off warning-light switch. A pressure gauge requires the sender specified for that gauge. Choosing by a similar threaded body does not establish the correct electrical function or compatibility with the gauge.

What identifies the local front stop-switch harness I should compare?

The separate branch replaces Honda 35345-319-000 and lists the 1973 CB500K. Compare its connectors and route with the wiring requiring replacement. It is a local harness purchase, with the front switch and main loom supplied separately.

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