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1978 Honda CB400TI Hawk I Brake-Light & Oil Switches

The rear brake-light switch and oil-pressure switch on a 1978 Hawk I belong to separate circuits. Identify which warning or lighting function needs attention, then compare the old component’s connection and mounting before ordering a replacement for the bike.

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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...
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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1978 Honda CB400TI Hawk I · Brake-Light & Oil Switches Buying guide

Identify the circuit before choosing a switch

These choices cover rear brake-light operation and the oil-pressure warning circuit. Use the correct service checks to isolate the fault instead of replacing a switch solely because a lamp does not behave as expected.

Parts to consider

Honda CB Rear Brake Light Switch Rear brake-light switchRear brake-light stop switch with a wired lead; the application includes the 1978 CB400TI.View part Honda CB Oil Pressure Switch ~ Replaces 37240-P13-013 Oil-pressure switchOil-pressure warning switch replacing reference 37240-P13-013; the application includes the 1978 CB400TI.View part

Match the rear brake-light assembly

The rear stop switch is supplied with a wired lead. Compare the switch body, connector ends and existing brake-operated linkage on the bike. Follow the correct manual when checking operation or adjustment; a damaged wire can call for different work from a damaged switch.

Treat oil-pressure warnings seriously

The oil-pressure switch replaces reference 37240-P13-013. Match that application and the fitted connection before ordering. A warning lamp that remains on requires proper investigation; buying a switch should not take the place of checking whether the engine actually has an oil-pressure problem.

Buying questions

Does the rear brake-light switch come with a wiring lead?

Yes. The rear stop switch has an attached wiring lead and terminal ends. Compare the lead connection with your existing switch, particularly where the brake-light wiring has been repaired or replaced.

Should I buy an oil-pressure switch whenever the warning light stays on?

Establish the cause first. The warning may involve the switch or wiring, but it can also indicate an engine oil-pressure problem. Use the service manual’s checks before treating it as a switch-only repair.

What if my rear switch has a different connector?

Confirm how the existing wiring differs before ordering. The correct mechanical switch still needs a suitable electrical connection; compare the terminal ends and have any previous wiring changes identified rather than selecting by appearance alone.

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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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