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1977 Honda CB550K Starter & Charging Parts

Starter and charging repairs on a 1977 Honda CB550K involve different components: the relay, starter brushes, smaller service parts or a combined rectifier/regulator. Identify the assembly needing attention first, then compare its connections and the selected regulator’s battery requirements.

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Currently viewing Starter & Charging System

Honda motorcycle parts

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Honda CB1100 CB1000 starter motor terminal rubber boot 32411-230-000

Honda CB Starter Motor Terminal Rubber Boot ~ Replaces 32411-230-000

$4.61 USD
73-0092
Replace your starter motor terminal cover with this Starter Motor Terminal (Cover) Rubber Boot, replacing OEM #32411-230-000.Key Features• Starter motor terminal rubber boot• Replaces...
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Honda CB750 CB550 CB500 CB400 CB350 rectifier regulator

Honda CB Rectifier/Regulator

$199.95 USD
24-2109
Replace your SOHC CB regulator and rectifier with this Rick's Electric OEM-Style Rectifier/Regulator. Combination unit replaces the OEM regulator and rectifier; stock-type plugs and...
Honda CB1100 CB1000 CB900 CB750 starter clutch diode 31700-124-003

Honda CB Starter Clutch Diode ~ Replaces 31700-124-003

$12.88 USD
24-2044
Replace your starter clutch diode with this Stator Clutch Diode/Rectifier, replacing OEM #31700-124-003 / #31700-166-008. Exceptionally broad fitment across the SOHC and DOHC CB750...
Honda CB750 CB550 CB500 CB450 starter solenoid relay 35850-375-000

Honda CB Starter Solenoid Relay ~ Replaces 35850-375-000

$38.95 USD
24-2003
Replace your late-'70s CB starter solenoid with this Starter Solenoid Relay, replacing OEM #35850-375-000 / #35850-286-027. Broad fitment across the late SOHC CB750, CB500T/CB550...
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Honda CB750 CB550 rectifier regulator lithium ion battery compatible

Honda CB Rectifier/Regulator ~ Lithium Ion Battery Compatible

$199.95 USD
24-2011
Upgrade to a lithium-ion compatible charging regulator with this Rick's Electric Rectifier/Regulator. Designed with a lower voltage set point to work exclusively with lithium-ion...
New
Honda CB starter motor seal 60 x 1.4 31206-286-158

Honda CB Starter Motor Seal 60 x 1.4 ~ Replaces 31206-286-158

$5.95 USD
03-0784
Seal up your starter motor with this Starter Motor Seal, size 60 x 1.4, replacing OEM #31206-286-158 / #31206-402-008. Exceptionally broad fitment across the...
New
Honda CB starter motor seal 24.4 x 3.1 91312-MG7-003

Honda CB Starter Motor Seal 24.4 x 3.1 ~ Replaces 91312-MG7-003

$4.50 USD
03-0780
Seal up your starter motor with this Starter Motor Seal, size 24.4 x 3.1, replacing OEM #91312-MG7-003 / #91309-300-000 / #91309-425-003. Exceptionally wide fitment...
Honda CB1100 CB1000 CB900 CB750 starter motor brush set 31201-292-158

Honda CB Starter Motor Brush Set ~ Replaces 31201-292-158

$29.95 USD
24-2021
Replace your Mitsuba 2-brush starter motor brushes with this Replacement Starter Brush Set of 2, 12mm x 14mm x 6mm, 1 piece with insulated...
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Honda CB550F CB550K CB500K alternator cover gasket 11691-323-306

1971-78 Honda CB550F / CB550K / CB500K Alternator Cover Gasket ~ Replaces 11691-323-306

$9.86 USD
18-6999
Replace your CB500K or CB550 alternator cover gasket with this Alternator Cover Gasket, replacing OEM #11691-323-306.Key Features• Alternator cover gasket• Replaces OEM #11691-323-306• Honda...
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1977 Honda CB550K · Starter & Charging System Buying guide

Match the starter parts and charging arrangement

The relay is separate from the starter brush set. Brush dimensions and starter type matter, while a combined charging unit may need custom mounting and a careful comparison with the installed battery.

Parts to consider

Honda CB Starter Solenoid Relay ~ Replaces 35850-375-000 Starter solenoid relayStarter solenoid relay listed for the 1977–78 CB550K, with replacement references 35850-375-000 and 35850-286-027. Compare the original terminals, connection and mounting.View part Honda CB Starter Motor Brush Set ~ Replaces 31201-292-158 Mitsuba starter brush pairTwo-brush set for Mitsuba two-brush starters, listed at 12 × 14 × 6 mm. It contains one insulated-lead brush and one non-insulated-lead brush; identify the starter first.View part Honda CB Rectifier/Regulator Combined rectifier and regulatorRick’s Electric combined unit with stock-type plugs and installation instructions included. The listing warns that custom mounting may be needed; compare the available space and attachment points.View part

Related parts: Lithium-ion-only regulator · Starter circuit diode · Starter terminal rubber cover

Identify the starter before buying internal parts

The brush set is described for Mitsuba two-brush starters and lists 12 × 14 × 6 mm brushes, one with an insulated lead and one without. Compare the starter already fitted, especially if it has been replaced. A matching motorcycle year does not identify an altered starter’s internals.

Choose the regulator around the battery

The standard combined unit and lithium-ion-only unit are distinct listings. The lithium version expressly excludes lead-acid batteries and states a 14 V ±0.2 set point to compare with battery requirements. Both descriptions warn that custom mounting may be needed; inspect the space and mounting arrangement before purchase.

Common buying questions

Does the brush set include a complete starter motor?

No. It is a set of two replacement brushes for a Mitsuba two-brush starter, with the dimensions and lead arrangements stated in the listing. Identify the fitted starter and compare those internal parts before selecting the set.

Will the combined regulator attach exactly like the original parts?

The listing says custom mounting may be required. Compare the unit’s dimensions, mounting points and plugs with the available space and existing wiring, and review its included installation instructions before choosing it for the repair.

Can I use the lithium regulator with a standard lead-acid battery?

The description expressly says not to use it with standard lead-acid batteries. It is a lithium-ion-only choice with a stated voltage set point. Confirm that value is appropriate for the particular lithium battery before selecting the regulator.

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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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