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1986 Honda CB450SC Nighthawk Electrical Fit and Supply Details

An electrical purchase for your 1986 CB450SC Nighthawk starts with the fitted part’s reference and the contents supplied. Warning switches, charging units and plug caps have different checks. Compare those details with the component needing renewal, then include any adjoining parts that also require attention.

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Honda motorcycle parts

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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 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...
Honda CB1100 CB1000 CB900 CB750 CB650 spark plug cap XD05F

Honda CB Spark Plug Cap ~ XD05F

$10.49 USD
23-3119
Replace your spark plug caps with this Spark Plug Cap, XD05F type. Two required per CB750. Key Features• Spark plug cap, XD05F• 2 required...
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 CB900 CB750 CB650 CB550 tail light cover screws 93500-04055-4J

Honda CB Tail Light Cover Screws ~ Replaces 93500-04055-4J

$4.69 USD
49-0145
Replace your tail light lens screws with this Tail Light Lens Screws Pack of 10, replacing OEM #93500-04055-4J.Key Features• Tail light lens screws• 10...
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...
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...
New
Honda CB750 CB650 CB550 CB500 battery box rubber 83618-323-000

Honda CB Battery Box Rubber ~ Replaces 83618-323-000

$4.95 USD
99-4986
Upgrade or restore your vintage Honda motorcycle with this Battery Box Rubber — designed to replace OEM #83618‑323‑000 and cushion your battery from vibration...
New
Honda CB1100 CB1000 CB700 turn signal flasher relay 38301-MG9-681

Honda CB Turn Signal Flasher Relay ~ Replaces 38301-MG9-681

$21.86 USD
13-0004
Replace your Nighthawk-era turn signal flasher with this Turn Signal Flasher Relay, replacing a range of OEM references (#38301-MG9-681, #38301-KK9-952, #38301-KK9-951, #38301-MF8-773, #38301-MF8-772, #38301-MB0-004,...
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 CB1100 CB1000 CB900 starter clutch roller spring 28125-516-030

Honda CB Starter Clutch Roller Spring ~ Replaces 28125-516-030

$3.50 USD
73-0856
Replace your starter clutch roller spring with this Starter Clutch Roller Spring, replacing OEM #28125-516-030.Sold each, order the quantity you require.Key Features• Starter clutch...
Honda CB750 CB550 CB450 CB400 rear turn signal rubbers pk 2 33606-371-000

Honda CB750 / CB550 / CB450 / CB400 Rear Turn Signal Rubbers Pk/2 ~ Replaces 33606-371-000

$15.95 USD
73-0834
Replace your rear turn signal rubbers with this Rear Turn Signal Rubbers Pk/2, replacing OEM #33606-371-000. These are the rubbers that go under the...
Honda CB1100 CB1000 CB700 CB650 CB550 oil pressure switch

Honda CB Oil Pressure Switch ~ Genuine Honda OEM

$69.95 USD
99-5094
Upgrade or restore your classic Honda motorcycle with this Genuine Honda Oil Pressure Switch — precision‑engineered and made in Japan. This authentic replacement part...
Honda CB450 CB400 CB360 tommaselli type headlight bracket set 32-34mm

Honda CB Tommaselli Type Headlight Bracket Set ~ 32-34mm

$39.95 USD
09-0015
Fit the Tommaselli look to your smaller-bore Honda with these 32-34mm Tommaselli-Type Headlight Brackets, supplied with rubber mount inserts. Sized for 33mm fork tubes...
Honda CB450 CB400 rectifier regulator 31600-KV8-681

1978-86 Honda CB450 / CB400 Rectifier / Regulator ~ Replaces 31600-KV8-681

$179.95 USD
24-2088
Replace your CB400 or CB450 rectifier/regulator with this Rectifier/Regulator, 6 wires, 3 yellow in one connector block and 3 wires in a 4-space block....
New
Honda CB450 CB400 rectifier regulator lithium ion battery compatible 31600-KV8-681

1978-86 Honda CB450 / CB400 Rectifier / Regulator ~ Lithium Ion Battery Compatible

$189.95 USD
24-2034
Upgrade your CB400 or CB450 to a lithium-ion compatible regulator with this Rick's Electric Rectifier/Regulator, replacing OEM #31600-KV8-681 / #31600-413-008. Designed with a lower...
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1986 Honda CB450SC Nighthawk · Electrical Buying guide

Use the fitted reference and package contents to build the order

The genuine oil switch, six-wire charging unit and individual XD05F cap cover different electrical service needs. Each has its own identification or supply details. Compare those details with the installed component before deciding what belongs in the repair order.

Parts to consider

Honda CB Oil Pressure Switch ~ Genuine Honda OEM Genuine oil-warning switchThe listed 1986 CB450SC application uses this warning-switch replacement. One genuine Honda switch is supplied; compare the original reference, terminal and sealing arrangement.View part 1978-86 Honda CB450 / CB400 Rectifier / Regulator ~ Replaces 31600-KV8-681 Six-wire regulator identificationThe wiring description names three yellow wires in one connector and three wires in a four-space block. Match both blocks and one of the listed Honda references.View part Honda CB Spark Plug Cap ~ XD05F XD05F cap for lead renewalOne resistor-style cap is included for a matching plug-lead position. The 1986 CB450SC is expressly listed, while the high-tension wire needs separate assessment and purchase if worn.View part

Related parts: Replacement turn-signal relay · Clutch starter-interlock switch · Individual battery support rubber

Include the adjoining component in the purchase assessment

The XD05F cap supplies no high-tension wire, so examine the lead and its connection before retaining them. Similar checks apply elsewhere: compare regulator connections and inspect the oil switch’s terminal and sealing arrangement. An original reference identifies the replacement without establishing the condition of the adjoining parts.

Resolve a confusing switch title through its stated application

The clutch switch’s title includes brake-light wording, while the detailed listing identifies a starter-safety switch at the clutch perch. Use that stated function and Honda reference 35330-413-003 when planning the purchase. It should not replace the mechanically operated rear stop-light switch simply because the title mentions a brake light.

Electrical Fit & Supply Details FAQs

What should be included in a plug-cap order when the lead also needs work?

Allow for the high-tension wire separately: one XD05F cap is supplied without that lead. Inspect the retained wire for cracks, hardening or corrosion, then decide whether additional wire renewal belongs in the repair alongside the matching replacement cap.

How do I choose the clutch-perch item when its title mentions a brake light?

Use its detailed starter-safety application and Honda 35330-413-003 reference to identify the item. It permits starting with the clutch lever pulled. Confirm the compatible perch and connection rather than choosing it to replace the rear pedal’s stop-light switch.

What information is needed before buying a replacement for an oil-warning fault?

Verify oil level, switch wiring and actual oil pressure using the Honda procedure before choosing the replacement. Then match the original reference, terminal and sealing arrangement. The listing warns that a new switch will not correct an engine unable to build pressure.

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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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