[njsteve]

The top photo is an original hose.



The bottom photo is the one on my 73SD. Did Gates make the original hoses or this an aftermarket replacement?

[2manyT/A'S]

Here is what is on my 73....which I believe to be original????

(59K & change on the oddo......)

[njsteve]

That's another vote for "GATES" !

[165th]

IMHO any original hose with 489867 is correct.

Here are some original unrestored pics of hoses I've collected.

The first pic (same pic as NJSteve's) is the Jack Nickolas low mileage unrestored 73 SD.

The second pic is a members 18K mile unrestored 73 SD.

The third pic is the '73 Florentine Red Formula SD that Tiemann restored a few years ago. It is my understanding he used a NOS hose.

In each of these examples, the GATES is not there, but I don't believe that makes a GATES hose not original. I just think both yellow GATES and non gates 489867 were used in the early years.

In later years (I don't know when but I wish I did), the stamp changed again and they went to a white hose with just RAD. The fourth pic is from a 3,000 mile '79 TATA, and the fifth pic is from another low mile '79 TA Special Edition.

One last comment, I believe the stripe and misc letters (76EX in one photo) and (6 13 3 Y in another photo) that run along the length of the hose are just identification markings from the hose manufacture, maybe even before the hoses are shaped into a part.

[165th]

Aaannnnd..., it just so happens I can stamp the early and late hose in case anyone needs one

Also, one thing I've never seen, is an original unrestored car with the GM AU stamp on it. The last pic is my yellow stamp next to the GM AU stamp.

[2manyT/A'S]

Originally Posted by njsteve

That's another vote for "GATES" !

Just curious to know your build date?

[Held for Ransom]

And, as I like to ask, is there a date code stamped on it?
As 165th alluded to, his 6 13 3 Y decodes to June 13, 1973.

[njsteve]

Originally Posted by 2manyT/A'S

Just curious to know your build date?

Late July 1973.

[2manyT/A'S]

I'll look tomorrow and see if I can pull a date code off my hose.....

My car was built March 13

[165th]

I'd like to refresh this thread, and open the dialogue to include thoughts of why there are so many known examples of the 489867 hose on cars and yet the assembly manual calls for part number 481776? It's the one part number that is consistent in all assembly manuals and yet there are few if any examples of the 481776 hose on cars? And, is 489867 ever listed in Assembly manuals?

First, some documentation that has been collected:

YELLOW 489867 RADIATOR:
NJSteve's post No. 1 shows the 489867 RADIATOR hose from the low mileage red '73 Superduty previously owned by Jack Nickolas and Gil Morgan.

Also shown is Steve's 489867 RADIATOR GATES from his '73 Superduty.

2manyT/A's post No. 2 shows 489867 GATES RADIATOR on a '73

my post No. 4 shows a members 18K mile unrestored 73 SD with 489867 RADIATOR.

WHITE 489867 RAD:
Attached is a picture I took last fall when I viewed a beautiful original paint unrestored 14K mile '74 Regatta Blue Formula 455.

my post No. 4 shows two low mile '79 TA's with the same marking.

So, with all of the documented 489867 hoses on cars, does anyone have any documented original cars with 481776 hoses?

I have seen true NOS hoses with the GM 481776 stamp but never an original unmolested car with one installed.

Any other known original 489867 or 481776 applications, please post.

Also, are there any '71 and '72 cars with original hoses on them? All of the documentation here starts at '73.

Thanks.

[70RAlll]

I thought I would add this to Greg's post. Performance Years has a parts look up service(on the main forum page) that shows the 481776 as being correct for 71-72 TA's and up to 79 TA's. Here is a 1977 dated MPS ,Group 1.159, it as well shows 481776 correct for 71-72 and 73-76 Cars.This is a parts list just for Firebirds..ALso, here are pictures of a NOS yellow and a NOS white stamped 481776 hose.. Funny how all the MPC's show 481776,including the assembluy manuals. The other part numbers do not show up anywhere in my parts catalogs.. Nowhere?

http://www.teufert.net/partbook/67-76/1-p.pdf


The 1st two pictures are of a all yellow '776 hose, the last 2 are of one with white number stamp, but yellowish EB numbers stampings..so the white hose actually has yellow and white stampings??

[Held for Ransom]

http://www.forums.maxperformanceinc....d.php?t=567373

I thought it was determined that the 1776 was a cut to fit application, ususally dated starting in late '75.

[165th]

Originally Posted by Held for Ransom

http://www.forums.maxperformanceinc....d.php?t=567373

I thought it was determined that the 1776 was a cut to fit application, ususally dated starting in late '75.

Wow, HFR, your search engine is awesome! This thread didn't come up when I did my search.

What's interesting about all this information in '08 and again now is, there still isn't any original cars with 1776 installed. But what's equally interesting is, I don't think there are any '71 or '72 documented hoses on either thread. It would be nice to see an original hose on a '71/'72.

Thanks also to Bill for posting a couple of nice examples of the NOS 1776 hose.

[70RAlll]

Greg.. looks like I stirred up a hornets nest.. anyway, saw in the thread HFR referenced someone commented that the 481766 hose may be the replacement hose for the 489867.. I sort of doubt that. The 481776 hose was in the 1972 MPC. Here is a copy of the page, showing a rev date of 7-72.. Pretty current to the 71/72 model year cars..??

well hell. PY's file size keep me from loading this.. Let me try and take a picture and load that way..

[Formulabruce]

My 2 cents, This 1st pic below is NJSteve's hose. I have never ever seen one like it and "suspect" a problem. To my knowledge there were no hoses made by Gates with a small "i" in the word radiator, second pic is the Known original. Later hoses from Gates had just "RAD". Its Just an Observation, doesnt mean you can take it to the bank, but worth looking into..FB

[Formulabruce]

Originally Posted by 70RAlll

Greg.. looks like I stirred up a hornets nest.. anyway, saw in the thread HFR referenced someone commented that the 481766 hose may be the replacement hose for the 489867.. I sort of doubt that. The 481776 hose was in the 1972 MPC. Here is a copy of the page, showing a rev date of 7-72.. Pretty current to the 71/72 model year cars..??

well hell. PY's file size keep me from loading this.. Let me try and take a picture and load that way..

[bossbirdta]

FWIW, this is said to be from a 71 survivor T/A with just over 20K original miles... it looks like it could be an original hose????

[70RAlll]

This is getting strange.. another part number that doesn't show up in the MPC?? That one shows a date of 155th day 1969.. could these be Chevrolet part numbers??

[njsteve]

Originally Posted by Formulabruce

My 2 cents, This 1st pic below is NJSteve's hose. I have never ever seen one like it and "suspect" a problem. To my knowledge there were no hoses made by Gates with a small "i" in the word radiator, second pic is the Known original. Later hoses from Gates had just "RAD". Its Just an Observation, doesnt mean you can take it to the bank, but worth looking into..FB

I took a closer look with a magnifying glass and it is not a small "i". Upon closer exam it is a big "I" with some of the ink thinner in that spot. Original photo was taken with a flash which partially washed out the image.

[Formulabruce]

AH, Glad that came out ok Steve, super Sleuth!! sorry for the alarm .