VintageCB750 Supplying CB Riders Since 2010

About Us Why Us? Reviews Shipping Info Returns Contact Us
Wish Lists
0 My Cart

Your cart is currently empty.

Browse all parts
Total (USD): $0.00
View cart
Menu
Search
Wish
Cart 0
My motorcycle Choose your Honda CB model

Search parts

Searching all Honda CB parts

Example: brake pads or oil filter.

1981 Honda CB900F Turn-Signal Relay & Gaskets

Not every turn-signal repair needs a complete lamp. For the 1981 CB900F Supersport, compare the incandescent-lamp flasher and separate signal gasket, checking the fitted wiring and lamp housing before deciding which service part to order.

Close ×
Your saved bike Choose your Honda CB model

Shop By Category

Most orders ship same or next business day Fitment guarantee Listed for your exact model and year? We’ll make it right if it doesn’t fit as described. Mechanic-backed support Ask our team for help choosing the right Honda CB part.
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...
New
Universal motorcycle headlight reflector rubber base 33743-425-600

Universal Motorcycle Headlight Reflector Rubber Base ~ Replaces 33743-425-600

$16.95 USD
99-4979
Upgrade or restore your Honda motorcycle’s headlight assembly with this Headlight Reflector Rubber Base — precision‑designed to replace OEM #33743‑425‑600. This rubber base provides...
Honda CB900 CB750 CB650 turn signal gasket 33406-431-781

Honda CB900 / CB750 / CB650 Turn Signal Gasket ~ Replaces 33406-431-781

$4.61 USD
11-2083
Service the gasket on your 1979-82 DOHC CB's turn signal with this Turn Signal Gasket, replacing OEM #33406-431-781. Pairs with our signal lens #11-2179...
compare

1981 Honda CB900F Supersport · Signal Relay & Gaskets Buying guide

Match each service part to the installed lighting

An incorrect flash rate, a broken lamp and water behind a lens need different repairs. Check the bulbs and wiring before choosing a flasher, and identify the actual lamp housing before ordering its gasket or lens.

Parts to consider

Honda CB900 / CB750 / CB650 Turn Signal Relay ~ Replaces 38301-415-671 Three-prong signal flasher12V/23W relay with rubber mount; not for custom LED lights.View part Honda CB900 / CB750 / CB650 Turn Signal Gasket ~ Replaces 33406-431-781 Signal-lamp gasketReplaces reference 33406-431-781 for the matching signal-lamp family.View part

Check the relay against the lighting circuit

The replacement flasher is specified as 12V/23W with three prongs and an attached rubber mount, replacing 38301-415-671. It is explicitly not for custom LED lights. Identify the fitted signal system and compare the connections before choosing this conventional replacement.

Check front and rear lamps independently

The listed front lamps use three wires and the rear lamps use two. Black and chrome finishes do not change that front/rear distinction. The gasket matches the stated lamp family; a different housing or an LED conversion needs its own electrical and sealing checks.

Buying questions

Will this flasher work with an LED signal conversion?

No. The listed 12V/23W three-prong flasher expressly excludes custom LED lights. Select a relay compatible with the installed lamps and wiring, and check the cause of an incorrect flash rate before replacing parts.

Can I use the same complete lamp at the front and rear?

The listed front assemblies are three-wire units and the rear assemblies are two-wire units. Match the position, circuit functions and mounting; a similar housing or matching finish does not make them electrically interchangeable.

Will a new gasket fix every water leak behind the signal lens?

Inspect the lens, housing lip and fastener points too. Gasket 33406-431-781 is matched to the specified signal family. A cracked lens, distorted housing or different aftermarket lamp requires its own repair.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

Ask a fitment question
Parts categories for 1981 Honda CB900F

Your cart

×