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1971 Honda CB500K Electrical Parts

Electrical repairs on a 1971 Honda CB500K can involve the main loom, ignition, charging equipment or individual lamps and switches. Start with the affected circuit, then identify the installed parts. The correct year and connector arrangement matter more than a familiar-looking housing.

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Honda motorcycle parts

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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...
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...
Honda CB750 CB550 CB500 CB350 front turn signal stay short type

Honda CB750 / CB550 / CB500 / CB350 Front Turn Signal Stay ~ Short Type

$13.95 USD
73-1105
Mount a front turn signal with this Front Signal Lamp Stay with nut and washer, Short Type, Chrome.Body length 26mm, thread 21mm, total length...
Dynatek 3 ohm ignition coil set 2 Honda CB

Dynatek Performance 3 Ohm Ignition Coil Set/2

$289.00 USD
07-9980
Match your Dyna-style electronic ignition requirement with this Dynatek Performance Dual-Output 3 Ohm Ignition Coil Set of 2. Same Dynatek quality as the 5...
Honda CB550F CB550K CB500K negative (-) battery cable 32601-323-000

1971-78 Honda CB550F / CB550K / CB500K Negative (-) Battery Cable ~ Replaces 32601-323-000

$21.95 USD
73-0106
Replace your CB500 or CB550 negative battery cable with this Negative (-) Battery Cable (ground cable), replacing OEM #32601-323-000.Key Features• Negative (-) battery cable...
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Honda CB750 CB550 CB500 CB450 stock type headlight assembly 33100-341-701

Honda CB750 / CB550 / CB500 / CB450 Stock Type Headlight Assembly ~ Replaces 33100-341-701

$199.95 USD
08-0461
Restore the classic look of your Honda with this Stock Style Headlight Assembly. Features 7" Halogen Headlight Unit, Headlight Rim & Retainer, Plastic Headlight...
Honda CB750 CB650 CB550 CB500 CB450 gb cafe headlight bracket set 34mm

Honda CB GB Cafe Headlight Bracket Set ~ 34mm

$44.52 USD
09-0017
Polished aluminum headlight bracket set designed for a clean café-style front end. Built to mount securely to 34mm fork tubes, providing a stable and...
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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...
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Honda CB750 CB650 CB550 tommaselli type headlight bracket set 35mm

Honda CB Tommaselli Type Headlight Bracket Set ~ 35mm

$39.95 USD
09-0012
Go for a classic European look with these Tommaselli-Type Headlight Brackets, sized for 35mm fork tubes and supplied with rubber mount inserts. A sharp...
Honda CB550 CB500 CB400F CB350F ignition coil set with plug caps

Ignition Coil Set with Plug Caps ~ Aftermarket Honda CB550 CB500 CB400F CB350F

$159.95 USD
24-2084
This aftermarket ignition coil set is built for the listed vintage Honda CB four-cylinder models. It replaces tired, cracked, weak, or failing original-style ignition...
Universal motorcycle spark plug cap VB05F

Universal Motorcycle Spark Plug Cap ~ VB05F

$9.50 USD
23-3124
Universal Motorcycle Spark Plug Cap ~ VB05F is an aftermarket part for the Honda CB applications listed in this product information. Before ordering, confirm...
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Honda CB750K CB500K stock type tail light bracket

1969-71 Honda CB750K / CB500K Stock Type Tail Light Bracket

$169.95 USD
99-5511
Upgrade or restore your classic Honda motorcycle with this Stock Type Tail Light Bracket — precision‑designed to replace original factory brackets and support your...
New
Universal motorcycle horn similar to stock style 12 volt

Universal Motorcycle Horn ~ Similar to Stock Style ~ 12 Volt

$34.95 USD
99-4994
Upgrade or restore your motorcycle’s horn system with this 12 Volt Chrome Horn — designed to deliver a clear, loud 103 dB signal at 3 amps. While...
Honda CB750 CB550 CB500 CB360 rear turn signal stay 33441-369-000

Honda CB Rear Turn Signal Stay ~ Replaces 33441-369-000

$18.95 USD
11-2318
Fit an extended-length rear signal stay with this Rear Signal Lamp Stay in chrome, 125mm long, replacing OEM #33441-369-000. This is longer than the...
Honda CB750 SOHC CB500 CB550 dynatek dyna 2000 ultimate kit

Honda CB750 SOHC / CB500 / CB550 Dynatek Dyna 2000 Ultimate Kit

$1,199.00 USD
07-9992
Take the top-tier Dyna 2000 upgrade path on your SOHC CB750 or CB500/CB550 with this Dyna 2000 Digital Performance CDI Ignition Ultimate Kit. Includes...
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Honda CB500K CB550 CB750 SOHC electronic ignition kit with trigger plate, wiring harness and aluminum rotor

Electronic Ignition Kit ~ Honda CB500K / CB550 / CB750 SOHC

$229.00 USD
08-0319
Replace mechanical points and condensers with this aftermarket electronic ignition for the listed Honda SOHC four-cylinder models. Keep the original mechanical spark advancer and...
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...
Honda CB500K wire harness 32100-323-020

1971 Honda CB500K Wire Harness ~ Replaces 32100-323-020

$119.00 USD
73-0932
Replace your CB500K main wire harness with this Main Wire Harness Loom, OEM #32100-323-020.Note: this fits the model year and type listed; other years...
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Honda CB750K CB500K CB450K tail light cover screws 93500-04050-4J

1969-72 Honda CB750K / CB500K / CB450K Tail Light Cover Screws ~ Replaces 93500-04050-4J

$3.42 USD
49-0144
Replace your tail light lens screws with this Tail Light Lens Screws Pack of 10, replacing OEM #93500-04050-4J.Key Features• Tail light lens screws• 10...
Honda CB750 SOHC CB500 CB550 dynatek dyna 2000 ignition system

Honda CB750 SOHC / CB500 / CB550 Dynatek Dyna 2000 Ignition System

$749.00 USD
07-9994
Get just the ignition module for your SOHC CB750 or CB500/CB550 with this Dyna 2000 Digital Performance CDI Ignition. The base unit for riders...
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1971 Honda CB500K · Electrical Buying guide

Follow the fault to the correct electrical component

This selection covers both original-style service parts and qualified alternatives. A year-specific wiring loom, separate ignition components and replacement charging equipment solve different problems; choose by function rather than replacing several unrelated parts together.

Parts to consider

1971 Honda CB500K Wire Harness ~ Replaces 32100-323-020 1971 main wiring harnessThe main loom replaces Honda reference 32100-323-020 and is listed specifically for the 1971 CB500K. Separate lamps, switches and sub-harnesses are not included.View part Honda CB750 / CB550 / CB500 Ignition Contact Points ~ Replaces 30204-300-005 Right-side ignition contact pointOne right-side point serves cylinders 2 and 3. Its left-side counterpart is a separate part; ordering one does not supply both ignition contact points.View part Honda CB Rectifier/Regulator Combined rectifier/regulatorRick's combined unit replaces the original regulator and rectifier. Stock-type plugs and instructions are included, but its mounting location still needs to be checked.View part

Related parts: Starter solenoid relay · Right-side handlebar switch · Stock-style headlight assembly

Choose the circuit before the shopping list

A starter relay, charging regulator and ignition contact point have separate jobs. Use the motorcycle wiring diagram and fault checks to identify the affected circuit before buying. A new electrical part will not correct damaged connectors or a poor ground elsewhere in that circuit.

Account for changes made during the bike’s life

A 1971 registration does not guarantee every electrical part is original. Compare the installed switch wiring, lamp connections, battery requirements and ignition layout with each listing. Keep custom mounting or rewiring requirements visible in your decision rather than assuming every catalog item plugs straight in.

Questions about electrical

Is the main harness shared with every CB500K year?

The 1971 main loom replaces Honda 32100-323-020. Other CB500K years use different references. Match that number, the connector arrangement and branch lengths to your motorcycle before ordering, especially if previous repairs introduced mixed-year wiring.

Which contact point is listed for cylinders 2 and 3?

Choose the right-side point referenced to Honda 30204-300-005. It is supplied individually for cylinders 2 and 3; the left-side point serves cylinders 1 and 4. Identify the required side before deciding whether one or both need replacement.

What mounting space does the combined charging unit need?

The regular rectifier/regulator measures 68 x 94 x 26 mm, with mounting holes 80 mm apart. Stock-type plugs are included, but custom mounting may be necessary. Compare the available location as well as the electrical connections before buying.

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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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