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1970 Honda CB100K0 Electrical Parts

Electrical repairs on a 1970 CB100K0 start with the equipment actually fitted. A rear brake light switch and a signal-lamp gasket address different jobs. Compare the existing switch connections or lamp housing before ordering, especially where an earlier owner changed components.

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Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

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...
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Honda CB750 CB125 CB100 rear brake light switch spring 35357-107-010

Honda CB750 / CB125 / CB100 Rear Brake Light Switch Spring ~ Replaces 35357-107-010

$7.00 $6.50 USD
You save $0.50
73-0848
Replace your rear brake stop switch spring with this Rear Brake Light Stop Switch Spring. This is the spring that attaches to the rear...
Honda CB750 CB450 CB350 CB200 CB175 front cable clip 45465-270-000

Honda CB Front Cable Clip ~ Replaces 45465-270-000

$7.00 USD
73-1116
Keep your wiring clean and secure with this Front Cable Clip, designed to hold the stop switch wires neatly against the front cable. Replaces...
Honda CB750 CB500 CB450 CB400 turn signal lamp gasket 33443-268-671

Honda CB Turn Signal Lamp Gasket ~ Replaces 33443-268-671

$4.61 USD
11-2085
Service your early CB750 or classic twin turn signal with this Turn Signal Lamp Gasket, replacing OEM #33443-268-671. Pairs with our signal lens #11-2110...
New
Honda CB125S CB100K turn signal flasher relay 38310-428-671

1970-82 Honda CB125S / CB100K Turn Signal Flasher Relay ~ Replaces 38310-428-671

$15.82 USD
12-0104
Replace your CB100 or CB125S turn signal flasher with this Turn Signal Flasher Relay, replacing a range of OEM references (#38310-428-671, #38300-GF0-405, #38300-243-670, #38300-089-671,...
New
Honda CB900 CB200 CB175 CB125 5.25 in. battery band 95012-15001

Honda CB 5.25 in. Stock Type Battery Band ~ Replaces 95012-15001

$8.95 USD
99-4991
Upgrade or restore your motorcycle’s battery mounting system with this Stock Type Battery Band — a quality replacement designed to keep your battery securely...
New
Honda CB750 CB500 CB450 CB350 tail light cover gasket 33709-077-671

Honda CB Tail Light Cover Gasket ~ Replaces 33709-077-671

$7.00 USD
11-2168
Replace the tail light lens gasket on your early '70s Honda with this Tail Light Lens Gasket, replacing OEM #33709-077-671. Fits the 1969-71 CB750K...
New
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Honda CB200 CB175 CB125 CB100 Denso ignition contact points 30202-107-004

Honda CB200 / CB175 / CB125 / CB100 Denso Ignition Contact Points ~ Replaces 30202-107-004

$8.95 USD
14-0004
Replace your Nippondenso-ignition points with this Denso Contact Points (1 piece), replacing OEM #30202-107-004 / #30202-216-004 / #30202-107-154.Important: these points are for Nippondenso ignitions...
Honda CB125S CB100K bar switch assembly left (clutch) side 35300-107-671

1970-74 Honda CB125S / CB100K Bar Switch Assembly ~ Left (Clutch) Side ~ Replaces 35300-107-671

$28.95 USD
12-0311
Fit the polished left-side handlebar controls on your CB100 or CB125S with this Bar Switch Assembly for the Clutch Side in polished finish, replacing...
New
Honda CB750 CB500 CB450 CB350 front fork reflector 33741-315-000

Honda CB Front Fork Reflector ~ Genuine Honda OEM 33741-315-000 ~ Replaces 33741-315-000

$42.95 USD
99-5113
Replace a damaged or missing front fork reflector on your vintage Honda motorcycle with this small-diameter amber front reflector. This replacement part is designed...
Universal motorcycle spark plug cap LD05F

Universal Motorcycle Spark Plug Cap ~ LD05F

$8.95 USD
23-3118
Spark Plug Cap - LD05F for custom or restoration work on classic Honda CB motorcycles.  Key Features Aftermarket part Sold as: Each Fitment /...
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New
Honda CB125S CB100K ignition switch 35100-324-761

1970-75 Honda CB125S / CB100K Ignition Switch ~ Replaces 35100-324-761

$15.26 USD
29-0082
Replace your ignition switch with this Ignition Switch with 2 keys, 2 wires. Replaces OEM #35100-324-761 / #35100-111-671 / #35100-240-010 / #35100-324-000.Key Features• Ignition...
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1970 Honda CB100K0 · Electrical Buying guide

Match the component before replacing it

The featured choices cover rear stop-light switching and signal-lamp sealing. Choose by the repair location and installed hardware, then check the application rather than relying on a broad Honda product title.

Parts to consider

Honda CB Rear Brake Light Switch Rear brake light switchReplacement rear stop-light switch with explicit 1970–72 CB100K application.View part Honda CB Turn Signal Lamp Gasket ~ Replaces 33443-268-671 Turn signal lamp gasketSignal-lamp gasket replacing reference 33443-268-671, listed for the 1970–72 CB100K.View part

Keep the switch and its spring in view

The rear stop-switch spring is offered separately under reference 35357-107-010. Inspect that connection while comparing replacement switches, and confirm supplied contents if both pieces are needed. For the lamp gasket, identify the fitted housing and lens rather than assuming a replacement signal retains the original seal.

Use the installed parts as your reference

Both featured parts are listed for the 1970–72 CB100K. Keep photographs of the parts fitted to your bike when comparing replacements. For a changed lamp or wiring harness, ask for confirmation using its identifying details before treating the model-year application as sufficient.

Buying questions

What should I compare before ordering the rear switch?

Compare its mounting body, cable exit and connector ends with the existing switch. Include any altered wiring in that comparison so the replacement is chosen for the motorcycle as it now stands.

Will the signal gasket suit an aftermarket lamp?

Do not assume so from the motorcycle year. The gasket replaces reference 33443-268-671; match the lamp housing and lens to that application before ordering a seal for a replacement signal.

Can I choose the flasher relay after converting to LED signals?

The relay offered in this collection is specified as 6V, 17W and two-prong, and explicitly excludes LED signals. Identify the fitted lamps and electrical system before selecting a relay for a conversion; model-year coverage alone is insufficient.

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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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