Need photo of Upper and Lower Rad Hoses for 69 Z

[Dusk Blue Z]

I took a look at the hoses from my car which I think are original, I've owned the car 27 years. My picture came out pretty bad but I can work on it if you want to see them.

The top hose does not have any writing left on it but under where the hose clamps were, you can see a BLUE stripe, that runs the whole length of the hose. The stripe is 1/8" wide and looks like it was put on with a perf. wheel. As the hose is mounted to the radiator the stripe would have been at about the 1 Oclock position and runs straight down the hose. It has 1/4" letters of A U C cut into the rubber 5 times during the whole length.

The lower hose has GMAU with 3942561SM under it printed in White, 2 1/8" from the radiator end printed straight up so you could read it. This also looks like it has the same BLUE line, but it is harder to see. The cut letters from end to end are A U A A B A U A AB

After re-reading this I think I better work on getting better pictures or just send you the hoses. Questions?

Mike

[firstgenaddict]

Thanks for the replies everyone. The little bit of research I have done so far has turned up different fonts, font sizes, and stripe colors...

[RamAirDave]

The lower hose in my pic is also a 561 SM hose like Mike's. No stripe, though. Neither has ever been on a car before, so maybe the factory hoses differed slightly.

What I believe to be date codes on them:
Upper: 6L19A
Lower: 4L30C

[k92]

Were the original thermostat housing gaskets blue like the ones that Autozone gives you today or were they brown?

[RamAirDave]

I dont know for sure, but I would doubt they were blue.

[firstgenaddict]

Dave the part number is correct for a 68 on your upper hose but the letter code is not right... JR is the 69 letter code, UY is the 68 letter code. The factory photo of a 68 Z engine compartment in Jerry's book has the part number about 1.5 inches tall and the hose has a yellow stripe down the length at 12 o'clock.

[firstgenaddict]

Here is a 68 Z28 Original GM Photo... this is from McNeish's book. Note the size of the lettering on the hose.

[rszmjt]

My lower rad hose is the same as Dusk Blue Z,s post. I did some measuring and the GMAU starts 2&5/8 from the end and go,s to 3&5/8th, ( 1" in length) It face s almost straight up from the lower neck rad outlet. The GMAU letters are 3/4" tall. You would read it from the centreline of the car if you were standing from the front. The part number is below the GMAU. The part number only has a few digits visible. It also has the stripe but i would say the colour ( whats left of it) is more white? than blue? The stripe had lots of little stripes along the length and they are trapped? by a upper and lower continous line the hole length of the hose. I have owned the car 33 years, 44,000 miles. I took the hose off the car a few years ago, it had some weather cracks and i did not want to risk using it. My top hose is long gone. My car is 06A by the way. Hope this helps somewhat. Mike.

[Tommy_Mathison]

James, have you determined a source for the correct hose itself? It seems the originals had a rough texture to them as opposed to the smooth reproductions.

Tommy M.

[mrrec]

There isn't going to be a "right" hose. Fonts, locations of lettering and stripes, stripe colors - all vary with the different mfr's and dates or batches that were made. Pick a known original hose or factory photo and duplicate it. Glad to see the interest in these details!
Dave