72455

Looking for a factory correct OEM flasher for a spare for my '72 Supreme. Is part #6450089 correct?

Burd

What does it say in the parts book?

Charlie Jones

In the 1972 Olds parts book it lists # 383627 as the flasher for turn signals in group 2.892 .
It lists # 3883794 as the hazard warning flasher in group 2.575 .
I found # 6450089 in GM parts wiki , and it fits 1980's models .

72455

What's the difference in the "groups"?

Charlie Jones

The group number designates what the part is used for .
Turn signal flashers are in group 2.892 .
Hazard flashers are in group 2.575 .

You didn't specify which flasher you were talking about , so I gave you info about both .

72455

So are there two separate flashers?.

BackInTheGame

Yep, two distinctly different flash modules. One mounts to the fuse block, the other is up under the dash, nearer the steering column.

72455

Oohhh...I didn't know that. So now I need to look for two spares. Numbers anyone?

Charlie Jones

Turn signal 383627, hazard flasher 3883794 .

72455

Thanks...and are there cross references?

WTHIRTY1

www.gmpartswiki.com is your friend. You can take the number and reference is against legacy numbers on Rock Auto if you'd like, or you can search for the NOS part on eBay. The turn signal flasher is in the dash to the left of the steering column if you're sitting in the seat. The emergency flasher is in the upper left corner of the fuse block under the dash.

Charlie Jones

No, not in the GM parts book.
There may be cross references to those numbers in an aftermarket manufacturer's parts book .
68RocketAction has made the parts books available to all of us as a free download .
Thru 1975 - Oldsmobile Illustration Catalog - ClassicOldsmobile.com
and
Thru 1975 - Oldsmobile Chassis and Body Parts Catalog - ClassicOldsmobile.com

Use the illustration book to find a group number and then go to that group in the parts catalog to find the part number for your year and model .

72455

Do the turn signal flasher and hazard flasher function differently, or would the same part number work for both?

WTHIRTY1

Different part numbers, different function.

72455

Marvelous...this just got more complicated 😒

Fun71

Yes, they should be interchangeable. I worked in auto parts stores in high school / college and as long as the prongs were the same orientation the flasher units were interchangeable.
If you look up a flasher on any parts store web site, the listing shows one part with "turn signal / hazard flasher" as the description.

72455

I keep coming up with SF552 and 6450089 as cross reference part numbers...does that sound right?

Vintage Chief

You won't know if they sound right until you install them. 😁😛🤣

72455

Ha ha Norm...good one!🤣🤣🤣
.

Fun71

One of the listings I saw on a parts web site had “Loud” in the notes section.

Koda

I'm just waiting for modern cars to replace the click with some sort of Bitchin' Betty.

Burd

Don’t forget the key buzzers too. They are harder to find, because we all yanked them back in the day.
seat belt buzzers too. Lol.

72455

I had one but never installed it..lol. Sold it to someone who was willing to put up with the noise.😀

Burd

I never yanked the key buzzer, but that seat belt buzzer was awful. Then I had a hard time finding one to replace it, Now it’s music when I go for a run, first the key buzzer, then borlas, then the seat be,t buzzer, then t tops off, no radio. Who’d a thought.

rocketraider

It's usually mounted in a clip that can leave you with bloody fingertips if you're not careful...

72455

Hopefully it won't come to that..lol. I'm just stocking up.

Burd

I just looked, I dont have any flashers , just a horn relay 😵‍💫
but that’s another to have in hand.

72455

True that...I have an OEM now,, but a spare never hurts.

Burd

Now I’m looking for both flashers 🤣

72455

I decided on two of these...I'll test them when I get a chance.