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1974 Honda CB550K Starter Service & Charging Parts

The starter and charging selection for the 1974 Honda CB550K includes service brushes, a solenoid, motor seals and combined rectifier/regulators. Identify the part requiring repair first, then compare starter construction or battery requirements with the relevant listing rather than buying by symptoms alone.

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Currently viewing Starter & Charging System

Honda motorcycle parts

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Honda CB750 CB550 CB500 CB350 starter solenoid relay 35850-371-670

Honda CB Starter Solenoid Relay ~ Replaces 35850-371-670

$21.46 USD
09-6582
Replace a failing starter solenoid with this Starter Solenoid Relay, replacing OEM #35850-371-670 / #35850-306-670 / #35850-HA7-670. Fits the SOHC CB750 lineup plus CB500/CB550K,...
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...
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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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1974 Honda CB550K · Starter & Charging Buying guide

Match starter service pieces and charging units separately

The brush set is for a Mitsuba two-brush starter. The charging units combine regulator and rectifier functions, but have battery and mounting conditions to check. Neither purchase is described as a complete starter motor.

Parts to consider

Honda CB Starter Motor Brush Set ~ Replaces 31201-292-158 Mitsuba starter brush pairTwo brushes, 12 × 14 × 6 mm: one with insulated leads and one with non-insulated leads.View part Honda CB Starter Solenoid Relay ~ Replaces 35850-371-670 Starter solenoid relayRelay replacing 35850-371-670 and the other listed references; CB550K fitment covers 1974–76.View part Honda CB Rectifier/Regulator OEM-style rectifier/regulatorCombined unit with stock-type plugs and instructions; the listing cautions that custom mounting may be needed.View part

Related parts: Lithium-only charging unit · Starter motor seal, 60 × 1.4 · CB550 alternator cover gasket

Verify the brush construction, not just the model name

The set contains one brush with insulated leads and one with non-insulated leads, each stated as 12 × 14 × 6 mm. It is specifically for a Mitsuba two-brush starter. Compare the motor and brush arrangement if the starter has been replaced or modified previously.

Allow for the chosen regulator’s mounting requirements

The OEM-style unit measures 68 × 94 × 26 mm with 80 mm mounting-hole spacing. The lithium version has separate dimensions and charging conditions. Both mention possible custom mounting, so compare clearance, plugs and battery requirements before ordering; included plugs do not guarantee identical mounting.

Starter & Charging questions

Does the brush set include a new starter motor?

No. The contents are two replacement brushes for Mitsuba two-brush starters, with one insulated and one non-insulated lead arrangement. The motor, solenoid and seals are separate parts; inspect those components before deciding what to renew.

Can the lithium regulator be used with lead-acid batteries?

Its listing explicitly says no: it is for lithium-ion batteries only. The stated setting is 14 V ±0.2, and the listing asks you to confirm that this suits your battery before installation; battery chemistry alone is not the final check.

Are the starter seals and alternator gasket the same repair part?

No. The linked seal is a starter motor seal with a stated size of 60 × 1.4. The alternator cover gasket replaces 11691-323-306. Compare the opened component and original reference rather than choosing a seal from its general electrical category.

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