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1978 Honda CB550K Headlamp & Housing Parts

The 1978 Honda CB550K headlamp selection allows a complete assembly purchase or a repair using separate housing pieces. Decide what can be retained before ordering: the complete unit’s application note still requires reused or separately purchased side-reflector mounting parts.

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Currently viewing Headlamp, Bulbs & Parts

Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

Honda CB750 CB550 CB500 CB450 headlight plug style 33130-300-003

Honda CB750 / CB550 / CB500 / CB450 Headlight Plug ~ OEM Style ~ Replaces 33130-300-003

$9.95 USD
73-0122
Replace your headlight plug with this OEM Style Headlight Plug, replacing OEM #33130-300-003.Key Features• Headlight plug, OEM style• Replaces OEM #33130-300-003• Honda part name:...
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 CB450 stock type headlight assembly bucket case 61301-300-020B

Honda CB750 / CB550 / CB500 / CB450 Stock Type Headlight Assembly Bucket / Case ~ Replaces 61301-300-020B

$49.95 USD
73-1143
Restore the classic look of your Honda with this Black Headlight Bucket / Case in the original stock design. A direct replacement for OEM...
Honda CB1000 CB750 CB550 CB500 headlight assembly rim 33101-300-673

Honda CB Headlight Assembly Rim ~ Replaces 33101-300-673

$27.95 USD
09-0066
Replace a damaged or pitted headlamp rim with this Chrome Headlamp Rim, replacing OEM #33101-300-673 / #33101-405-671. Fits all 1969-78 CB750s, select late-model DOHC...
Honda CB750 CB550 CB500 CB450 headlight rim and retainer 33101-404-671

Honda CB750 / CB550 / CB500 / CB450 Headlight Rim & Retainer ~ Replaces 33101-404-671

$48.95 USD
09-0046
Restore your headlamp trim with this Headlamp Rim & Retainer Assembly, replacing OEM #33101-404-671 / #33121-300-672 / #33153-300-671. Fits the full 1969-78 SOHC CB750...
New
Honda CB750 CB550 CB500 CB400 headlight stay headlight reflector bolt 90120-377-000

Honda CB750 / CB550 / CB500 / CB400 Headlight Stay / Headlight Reflector Bolt ~ Replaces 90120-377-000

$8.95 USD
99-4977
Upgrade or restore your classic Honda motorcycle headlight system with this Headlight Stay / Headlight Reflector Bolt — designed to secure the headlight reflector...
New
Honda CB750 CB550 CB500 headlight reflector rubber base 33743-375-000

Honda CB750 / CB550 / CB500 Headlight Reflector Rubber Base ~ Replaces 33743-375-000

$12.95 USD
99-4976
Replacement rubber base for restoring your CB750's headlight assembly back to proper condition. This is the rubber mount that the headlight reflector attaches to...
New
Honda CB750 CB550 CB500 CB450 headlight case collar 61302-300-000

Honda CB Headlight Case Collar ~ Replaces 61302-300-000

$4.95 USD
07-4644
Replace a worn headlight case collar with this Headlight Case Collar, a direct replacement for OEM #61302-300-000. Located on each side of the stock...
Honda CB750 CB650 CB550 CB500 CB450 gb cafe headlight bracket set.

Honda CB GB Cafe Headlight Bracket Set.

$44.52 USD
09-0016
Go for the distinct GB Café aesthetic with this GB Café Headlight Bracket Set in polished aluminum. Sized for 35mm fork tubes with 11mm...
Honda CB1000 CB900 headlight adjusting screw and spring set 33103-346-670

Honda CB Headlight Adjusting Screw & Spring Set ~ Replaces 33103-346-670

$7.50 USD
29-7011
Replace your headlight adjuster with this Headlight Adjusting Screw & Spring Set. Each set includes one screw and one spring. Replaces OEM #33103-346-670 (screw)...
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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 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...
New
Honda CB750 CB650 CB550 SL350K2 Honda headlight stay rubber cushion 61315-340-000

Honda CB750 / CB650 / CB550 / SL350K2 Genuine Honda 61315-340-000 Headlight Stay Rubber Cushion

$15.95 USD
99-5368
This genuine Honda headlight stay rubber cushion fits the upper headlight and fork ear mounting area on select classic Honda CB and SL models....
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1978 Honda CB550K · Headlamp, Bulbs & Parts Buying guide

Decide between a complete lamp and individual housing pieces

Rims, buckets, adjusters and side-reflector hardware serve different parts of the headlamp installation. Compare the retained housing and mounts before treating any one listing as the entire replacement assembly.

Parts to consider

Honda CB750 / CB550 / CB500 / CB450 Stock Type Headlight Assembly ~ Replaces 33100-341-701 Complete stock-type headlampThe assembly lists a 7-inch halogen unit, rim and retainer, plastic bucket and connection hardware. For CB550K 1977–78, side reflectors, reflector rubbers and stay bolts must be reused or purchased separately.View part Honda CB750 / CB550 / CB500 / CB450 Stock Type Headlight Assembly Bucket / Case ~ Replaces 61301-300-020B Black headlight bucketA separate black headlight case referencing 61301-300-020B. Use its shape and mounting points to compare with the existing housing; this is not a complete lamp assembly.View part Honda CB750 / CB550 / CB500 / CB450 Headlight Rim & Retainer ~ Replaces 33101-404-671 Headlamp rim and retainerRim and retainer assembly for repairing the front of the housing. Compare the existing rim, retainer and lamp arrangement rather than assuming a separate bucket or light unit is included.View part

Related parts: Adjusting screw and spring · Side-reflector mounting rubber · Headlight stay and reflector bolt

Read the complete-assembly application note

The complete lamp listing includes the light unit, rim and retainer, plastic bucket and connection hardware. Its CB550K 1977–78 note calls for reused or separately purchased headlight-side reflectors, reflector rubbers and stay bolts. Check those retained parts before considering the order complete.

Distinguish housing repair from a custom mount

A replacement bucket or rim preserves only the component you select. Custom bracket listings instead specify fork-tube sizes, including 34mm and 35mm choices. Measure the actual tubes and lamp mounts on your motorcycle; a model name does not settle the bracket size after a front-end change.

Common buying questions

Does the complete assembly supply the side reflectors?

For the listed CB550K 1977–78 application, the description says to reuse or purchase the headlight-side reflectors, reflector rubbers and stay bolts separately. Account for those pieces when checking the retained headlamp installation.

Is the rim-and-retainer listing a whole headlamp?

It is a rim and retainer assembly, rather than the complete lamp, bucket and mounting package. Compare which front housing pieces are damaged so that you can retain suitable parts and order the missing components separately.

Can I pick a café bracket by the model name?

Measure the actual fork tubes and lamp mounting holes first. The bracket listings describe different tube sizes; that requirement matters if the motorcycle has changed forks, altered mounts or a different headlight housing.

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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