[Terry M. Hunt]

My horns are stamped 9000 with the last 3 digits being 837 or maybe 237,: Hard to tell since pot metal in this area is degraded. This is the high note with an H stamped on it.
The other horn has nothing to denote if it’s high or low note and has 9000498 stamped on it
Are these the correct horns for my 66 GTO?

[Scott Thelander]

497 498 for the 66 67
498 is the lo note

[Terry M. Hunt]

Hmm, I’m confused. I ran across my 71 Parts and Accessory Catalog dated 3-1-71 and looked up Horn Assembly in section 2.810. that covers 1946-1954 to 1971. It showed:
66-69 T/6, T/8, P/8. 9000239 high note

66-69 T/6, T/8. 9000236 low note

I did not see 9000497 or 9000498 listed anywhere in this section. Maybe I’m missing something somewhere.

[Kenth]

From 1966 Tempest Shop Manual:

High Note 9000537
Low Note 9000498

From 1967 Chassis Parts Catalog:

1966-67 T/6-T/8 high note 9000513 RH
1966-67 T/6-T/8 low note 9000500 LH

From 1970 Master Parts Catalog:

1966-69 T/6-T/8-P/8 high note 9000239 RH
1966-67 T/6-T/8 low note 9000236 LH

I guess you have the original 1966 horns.

[Terry M. Hunt]

Holy cow! Never occurred to me the same part could carry so many different numbers in different publications. Think I’m confident enough now that mine are correct to restore them. Thanks for the help.

[Scott Thelander]

68-69 are 251 252
I have several sets of those
probably the service replacement number

497 498 are assembly line numbers for the 66 67

[60sstuff]

Like so many components on these cars the horns are also dated.

Here are the horns on my ‘66 Survivor (5M5) that was mostly assembled in Dec. 1965.

[Scott Thelander]

wow 5 th week of december built horns on a december assembled car.... pretty tight dates,,,
they got those delivered pretty fast to the assembly line with the 31st being on a friday in 65

you must mean with december 65 parts ,,, not your car was assembled in dec 65 ?

[Scott Thelander]

Pontiac horns

[60sstuff]

Originally Posted by Scott Thelander

wow 5 th week of december built horns on a december assembled car.... pretty tight dates,,,
they got those delivered pretty fast to the assembly line with the 31st being on a friday in 65

you must mean with december 65 parts ,,, not your car was assembled in dec 65 ?

Sorry to mislead you with my post.

This GTO is mostly Dec. 65 and into Jan. 66 “components” for this 01B 1966 GTO.

This car build is extremely tight.

The horns are 5M5.
5 = year, 1965
M = month, December
5 = week, 5th week of Dec.

Thanks, Chris