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1978 Honda CB400TI Hawk I Electrical Parts

The 1978 Hawk I uses a kick starter, so begin electrical shopping with the circuit needing attention. These choices cover keyed power, fuse protection and charging. Compare the fitted harness connectors and battery type before replacing parts on a restored or modified bike.

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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...
Honda CB900 CB750 CB650 CB550 CB500 oil pressure switch 37240-P13-013

Honda CB Oil Pressure Switch ~ Replaces 37240-P13-013

$23.95 USD
73-0825
Replace your oil pressure switch with this Oil Pressure Switch, replacing OEM #37240-P13-013.Key Features• Oil pressure switch• Replaces OEM #37240-P13-013• Honda part name: Switch...
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...
New
Honda CB750 CB650 CB550 CB450 headlight setting collar 61304-292-000

Honda CB Headlight Setting Collar ~ Replaces 61304-292-000

$4.50 USD
07-4645
Restore headlight mounting with this Headlight Setting Collar, replacing OEM #61304-292-000. Exceptionally broad fitment across the classic Honda lineup, from the SOHC and DOHC...
Honda CB750 CB550 CB500 CB400 CB360 front turn signal stay

Honda CB Front Turn Signal Stay

$12.95 USD
11-2167
Replace a damaged front signal stay with this Front Signal Lamp Stay in chrome. Body length 65mm, thread 25mm, total length 90mm. Pairs with...
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...
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 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...
New
Honda CB450 CB400 ignition coil 30530-413-003

1978-82 Honda CB450 / CB400 Ignition Coil ~ Replaces 30530-413-003

$44.95 USD
17-4542
Replace your CB400 or CB450T ignition coil with this Ignition Coil, replacing OEM #30530-413-003.Sold each, order the quantity you need.Key Features• Ignition coil• Replaces...
New
Honda CB450 CB400 fuse box assembly 38200-413-003

1978-82 Honda CB450 / CB400 Fuse Box Assembly ~ Replaces 38200-413-003

$54.95 USD
11-2106
Rebuild your CB400 family fuse box with this Complete Fuse Box Assembly (fuses included), replacing OEM #38200-413-003. Fits the full CB400 range from 1978-82...
New
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Honda CB450 CB400 ignition coil 30530-413-003

1978-82 Honda CB450 / CB400 Ignition Coil ~ Replaces 30530-413-003

$69.95 USD
24-2035
Replace your CB400 or CB450T ignition coil with this Rick's Electric Ignition Coil, replacing OEM #30530-413-003.Sold each, order the quantity you need.Key Features• Rick's...
Honda CB450 CB400 ignition switch 35100-MC0-671

1978-82 Honda CB450 / CB400 Ignition Switch ~ Replaces 35100-MC0-671

$24.95 USD
12-0053
Fit the rectangular connector block style ignition switch on your CB400 family bike with this Ignition Switch Assembly featuring a rectangular connector block with...
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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1978 Honda CB400TI Hawk I · Electrical Buying guide

Choose by circuit, connector and battery type

An ignition switch, fuse box and rectifier/regulator do different jobs. Separate a damaged connection or holder from a charging fault, then match the replacement to the equipment actually fitted to your Hawk I.

Parts to consider

1978-82 Honda CB450 / CB400 Ignition Switch ~ Replaces 35100-MC0-671 Rectangular-plug ignition switchRectangular connector block with six flat male terminals. Match this connection to the harness on your Hawk I.View part 1978-82 Honda CB450 / CB400 Fuse Box Assembly ~ Replaces 38200-413-003 Fuse box with fusesComplete fuse box assembly with fuses included; replaces reference 38200-413-003.View part 1978-86 Honda CB450 / CB400 Rectifier / Regulator ~ Replaces 31600-KV8-681 Six-wire rectifier/regulatorSix wires in two connector blocks: three yellow wires in one block and three wires in a four-position block.View part

Start with the harness connection

The featured ignition switch uses a rectangular block with six flat male terminals. Its connector requirement matters even when the model appears in the fitment list. Match the block, terminal layout and mounting to your existing assembly before ordering for a replacement harness.

Keep battery chemistry in the decision

The featured rectifier/regulator has a six-wire, two-block connection. A separate lithium-only option appears in the charging category. That option has a different voltage set point and omits the black signal wire; choose it only after the battery manufacturer confirms compatibility.

Buying questions

Does the Hawk I use an electric starter?

The US-market 1978 Hawk I was supplied with kick starting rather than an electric starter. Use that model distinction when identifying electrical components, especially when a catalog groups several CB400 variants together.

Is the lithium regulator suitable for any replacement battery?

No. The lithium-only unit is not for standard lead-acid batteries. Its 14 V ±0.2 V set point must agree with the requirements of the particular lithium battery you plan to use.

Does the replacement fuse box include fuses?

Yes, the complete fuse box assembly includes fuses. Check the required circuit ratings in the correct service information and compare the connector and mounting with your bike before ordering.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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