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1972 Honda CB100K2 Signals & Reflectors

For the 1972 Honda CB100K2, the reflector and signal gasket serve separate assemblies. The reflector uses a 6mm screw attachment; the gasket seals a matching turn-signal lens. Inspect both the mounting and lamp housing before adding either part to your order.

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Currently viewing Turn Signal Lamps, Stems, Lenses & Reflectors

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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...
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...
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1972 Honda CB100K2 · Signals & Reflectors Buying guide

Match the reflector fixing and the signal sealing edge

This selection supports reflector replacement and signal-lamp sealing rather than a complete signal conversion. Decide which assembly needs attention, then use the mounting type or gasket reference to narrow the choice.

Parts to consider

Honda CB Stock Type Reflector ~ Replaces 33741-340-670 Screw-On ReflectorStock-type reflector with a 6mm mounting thread; replacement reference 33741-340-670. The application includes the 1972 CB100K.View part Honda CB Turn Signal Lamp Gasket ~ Replaces 33443-268-671 Turn-Signal Lamp GasketSignal-lamp sealing gasket, replacement reference 33443-268-671. Check the fitted lens and housing for a matching gasket seat.View part

Check the bracket behind the reflector

The screw-on reflector replaces 33741-340-670 and has explicit 1972 CB100K coverage. Inspect the attachment point behind the old reflector. A replacement bracket can alter the required thread or clearance even when the surrounding parts retain an original-style appearance.

Choose a gasket for the installed lamp

The turn-signal gasket carries replacement reference 33443-268-671. Use that reference alongside the shape of the fitted sealing edge. A lens or housing changed during a previous restoration needs its own comparison; the motorcycle’s year does not identify a replacement lamp assembly.

Ordering questions

Which lamp references help identify the matching signal gasket?

The gasket description identifies lens 11-2110 and lamp 11-2122 as matching parts. Use those references to investigate the assembly fitted. A similar-looking replacement lamp can still require a different sealing profile.

Should I buy a gasket when the signal lens edge is damaged?

Inspect the lens and housing before making a seal-only order. This gasket renews the joint between matching parts; it does not resolve a cracked lens edge or a distorted gasket seat. Identify any additional damaged component before ordering.

Is a 6mm hole enough to confirm the reflector mounting?

No. The reflector specifies a 6mm thread but does not give its pitch or stem length. Check the bracket attachment and obtain the missing measurements before ordering for a changed mounting.

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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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