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1985 Honda CB450SC Nighthawk Signal Relay and Stay Planning

Turn-signal service on your 1985 CB450SC Nighthawk can involve the flashing circuit or the rear mounting stays. The available relay and rear-stay rubbers address those separate needs. Check the fitted relay reference and mounting condition, then calculate the rubber quantity for the signals being renewed.

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Currently viewing Turn Signal Lamps, Stems, Lenses & Reflectors

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Honda CB1100 CB1000 CB700 turn signal flasher relay 38301-MG9-681

Honda CB Turn Signal Flasher Relay ~ Replaces 38301-MG9-681

$21.86 USD
13-0004
Replace your Nighthawk-era turn signal flasher with this Turn Signal Flasher Relay, replacing a range of OEM references (#38301-MG9-681, #38301-KK9-952, #38301-KK9-951, #38301-MF8-773, #38301-MF8-772, #38301-MB0-004,...
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...
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1985 Honda CB450SC Nighthawk · Turn Signal Lamps, Stems, Lenses & Reflectors Buying guide

Choose the electrical or mounting part from the actual repair

The flasher is listed for 1985–86 CB450SC models and supplied singly. The rear-stay rubbers come in packs of two, with two used per rear signal. Keep relay compatibility and mounting repair quantities as separate purchasing checks.

Parts to consider

Honda CB Turn Signal Flasher Relay ~ Replaces 38301-MG9-681 Reference-matched signal relayOne flasher relay is included, with one used on each compatible motorcycle. The listing covers the 1985–86 CB450SC and provides several Honda reference numbers to compare.View part Honda CB750 / CB550 / CB450 / CB400 Rear Turn Signal Rubbers Pk/2 ~ Replaces 33606-371-000 Rear-stay rubber pairTwo rubbers are supplied and two are used beneath each compatible rear stay. One pack services one rear signal; renewing both rear signals requires two packs.View part

Use the relay reference alongside the condition of the circuit

The relay cross-references several Honda numbers, including 38301-MG9-681 and 38301-KK9-952. Confirm the original reference rather than choosing from appearance alone. Incorrect bulb wattage, damaged wiring or poor grounds can also disturb flashing, so assess those components before buying a relay for the symptom.

Inspect the stay hardware while counting the cushioning pieces

Each rear signal uses two rubbers beneath its stay. Inspect the stay, bracket, collars, washers and fasteners for missing or bent pieces while planning the renewal. A two-rubber pack covers one signal’s cushioning pieces; hardware that also needs attention should be accounted for separately.

Flasher & Rear Stay Service FAQs

What else should I check before replacing the flasher for irregular blinking?

Check burned-out or incorrect-wattage bulbs, grounds, connector corrosion and wiring damage before choosing the relay. These faults can resemble flasher failure. Once replacement is justified, compare the original Honda number with the relay’s listed cross-references.

How many rubber packs should I buy to renew both rear signal mounts?

Buy two packs for both compatible rear signals. Each pack contains two rubbers, and each signal uses two beneath its stay. For a repair confined to one rear signal, one pack provides its stated rubber quantity.

What adjoining pieces should I assess if new rear-stay rubbers are planned?

Inspect the stays, mounting brackets, collars, washers and fasteners for bending or missing parts. The rubber pack supplies cushioning pieces only. Include any damaged adjoining hardware in the repair assessment so the order reflects the complete mounting work required.

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