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1978 Honda CB750K Turn-Signal Service Parts & Reflectors

Turn-signal servicing on a 1978 CB750K may mean replacing a housing gasket or restoring a separate reflector mount. This route contains parts for both jobs. Check the lamp housing and reflector equipment independently, particularly on a motorcycle that has been fitted with custom signals.

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Currently viewing Turn Signal Lamps, Stems, Lenses & Reflectors

Honda motorcycle parts

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

Honda CB900 CB750 CB650 turn signal relay 38301-415-671

Honda CB900 / CB750 / CB650 Turn Signal Relay ~ Replaces 38301-415-671

$11.69 USD
73-1104
Replace your turn signal flasher relay with this Turn Signal (Flasher) Relay, 12V/23W, 3-prong, with rubber mount attached. For the series 2 and later...
Honda CB750 CB550 CB500 CB450 CB400 reflector 33741-340-670

Honda CB Stock Type Reflector ~ Replaces 33741-340-670

$21.46 USD
11-2303
Restore your mid-'70s Honda's stock reflectors with this Stock-Type Screw-On Reflector with a 6mm thread, replacing OEM #33741-340-670. Broad fitment covering the 1972-78 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...
Honda CB900 CB750 CB650 CB550 turn signal lamp gasket 33406-377-671

Honda CB Turn Signal Lamp Gasket ~ Replaces 33406-377-671

$4.61 USD
11-2084
Replace the gasket on your turn signal with this Turn Signal Lamp Gasket, replacing OEM #33406-377-671. Pairs with our signal lamps #11-2114 and #11-2149...
Honda CB900 CB750 CB650 turn signal lamp lens screw set 93500-04025-0A

Honda CB Turn Signal Lamp Lens Screw Set ~ Replaces 93500-04025-0A

$2.95 USD
73-1034
Replace your turn signal lens screws with this Turn Signal Lamp Lens Screw Set of 2, replacing OEM #93500-04025-0A.Note: also fits our signal lens...
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1978 Honda CB750K · Turn Signal Lamps, Stems, Lenses & Reflectors Buying guide

Keep lamp-gasket and reflector repairs as separate choices

The featured signal gasket, screw-on reflector and rubber base have different replacement references. Compare each with the part being removed; a reflector purchase does not specify a signal lamp or its wiring arrangement.

Parts to consider

Honda CB Turn Signal Lamp Gasket ~ Replaces 33406-377-671 Later-style turn-signal lamp gasketSignal-lamp gasket replacing Honda 33406-377-671, listed for the 1978 CB750K. Compare the gasket with the housing already fitted.View part Honda CB Stock Type Reflector ~ Replaces 33741-340-670 Stock-type threaded reflectorScrew-on reflector listed with a 6 mm thread and Honda 33741-340-670 replacement reference. Match the mounting arrangement on the motorcycle.View part Honda CB750 / CB550 / CB500 Headlight Reflector Rubber Base ~ Replaces 33743-375-000 Reflector rubber mounting baseRubber base replacing Honda 33743-375-000. The listing specifies sale individually; compare the base and required quantity with your motorcycle.View part

Use the gasket reference to identify the lamp family

The gasket description pairs it with the later-style front and rear lamp listings and their matching lens. It replaces Honda 33406-377-671. Check the housing actually fitted before buying, because previous owners may have changed the signals and a shared model-year label does not identify an aftermarket lamp’s gasket.

Compare reflectors without assuming a complete mounting kit

The screw-on reflector has a stated thread specification, while the rubber base is another separate product. Read each reference against the installed pieces. The base description says it is sold individually, so count the positions being repaired rather than expecting a pair or an entire mounting assembly in one purchase.

Common questions

Is the featured gasket a replacement signal lamp?

No. It is a lamp gasket with Honda 33406-377-671 listed as its replacement reference. Compare it with the existing housing; buying the gasket does not provide a complete signal or establish its wiring requirements.

What attachment is listed for the stock-type reflector?

The reflector description specifies a screw-on attachment with a 6 mm thread and replacement reference 33741-340-670. Compare the mount fitted to your motorcycle before selecting it, especially where earlier work has changed the reflector hardware.

Are the rubber reflector bases supplied as a pair?

The featured rubber-base description says it is sold individually and asks buyers to order the quantity required. Count the bases you intend to replace; the listing does not describe a paired mounting kit.

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