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1972 Honda CB450K Screw-On Reflectors & Signal Hardware

Check the reflector attachment and rear signal mounting on your 1972 CB450K before choosing supporting parts. The screw-on reflector has a stated thread size, while the rear stay requires shape and side checks. Assess the lamp gasket against the retained housing and lens.

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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 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 CB550 front reflector rubber base 33743-341-670

Honda CB Stock Type Front Reflector Rubber Base ~ Replaces 33743-341-670

$8.95 USD
11-2304
Fit the rubber base beneath your stock front reflector with this Stock-Type Front Reflector Rubber Base, replacing OEM #33743-341-670.Key Features• Stock-type front reflector rubber...
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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Honda CB750 CB450 CL450K1 CL450K2 rear turn signal stay 33607-292-000

Honda CB Rear Turn Signal Stay ~ Genuine Honda 33607-292-000 ~ Replaces 33607-292-000

$59.95 USD
99-5164
This genuine Honda rear turn signal stay mounts the rear turn signal to the motorcycle frame and helps keep the signal straight, secure, and...
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1972 Honda CB450K · Turn Signals & Reflectors Buying guide

Use the thread specification and mounting shape together

The stock-type reflector specifies a 6mm thread and reference 33741-340-670. The genuine rear stay is sold individually with its own mounting checks. A front reflector rubber base and lamp gasket address different supporting locations and should be matched to their retained components.

Parts to consider

Honda CB Stock Type Reflector ~ Replaces 33741-340-670 Stock-type screw-on reflectorReflector with a specified 6mm thread, referencing Honda 33741-340-670. Compare the threaded attachment and available mounting space. The description does not give thread pitch, post length or a complete face-dimension drawing.View part Honda CB Rear Turn Signal Stay ~ Genuine Honda 33607-292-000 ~ Replaces 33607-292-000 Genuine Honda rear turn-signal stayRear signal bracket referencing Honda 33607-292-000, also identified as 33607-292-000B. Sold individually. Follow the listing’s original shape, side and mounting checks before choosing the replacement.View part Honda CB Turn Signal Lamp Gasket ~ Replaces 33443-268-671 Gasket for a matching signal lampSeal referencing Honda 33443-268-671, with a specific companion lens and lamp identified in its description. Compare the retained housing and lens; this purchase is not itemized as a complete lamp repair package.View part

Related parts: Front reflector rubber support

Confirm the mounting beyond the 6mm thread label

Thread size is one reflector specification; it does not establish pitch, post reach or clearance at a changed mounting. Compare the existing reflector attachment and confirm those missing dimensions where required. The front rubber base has a separate reference and needs its own comparison with the retained support.

Identify the bracket position before calculating quantity

The rear stay is sold individually and calls for shape, side and mounting checks, without stating that it is a paired set or universally fits either side. Inspect the bracket being renewed on the actual frame arrangement. Choose the quantity only after confirming the appropriate bracket for each repaired position.

Reflector threads and signal mounting questions

Does the reflector’s 6mm label also specify its thread pitch?

The description states a 6mm thread but gives no pitch or post-length specification. Compare the retained attachment and confirm any missing measurement needed by a changed mount. Do not infer all thread details from the size label.

Can I use the rear stay for a custom signal support by model year alone?

Compare the original bracket shape, side and mounting details as the stay listing requires. An altered signal or frame attachment may need additional measurements. The motorcycle application and individually sold quantity do not resolve that custom connection.

What should I check when keeping a different signal lens?

Match the gasket outline and sealing arrangement with that lens and its housing. The gasket description names specific companion products, without a full dimensional drawing. Confirm the needed dimensions if the retained lamp differs instead of assuming the original application settles the seal fit.

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