NAPA waterpump

[vic marks]

Before I purchase a new water pump I would like to know the source of
information indicating that the correct water pump should be 4-1/4"
diameter,have a cast iron impeller with a backing plate (part #
412265-D24).The water pump I removed, which had been working fine, looks
just like the one Arch recieved from Cinnabar. I called my local Napa
dealer who had a 412265 water pump in stock. when we opened the box the
pump was brand new and looked like the one I just removed.I told him I
was sorry but I wanted the 4-1/4 diameter as advised by the GMC
gurus.

On my recent quest for a 100amp alternator, I was also in search of a new
NAPA waterpump. However, the NAPA's that I called didn't have any reference
to the 412265-d24. They suggested that I purchase a 551120 (and this is
indeed the number in the parts interchange index). Is this the correct
pump? It was for a 455 Olds with air conditioning. The cost varied from $48
to $55 between stores (shades of Autozone) and was a new pump. I purchased
it (at the higher cost of course!) but haven't installed it as yet. The
impeller measures 3.5 inches and the pump looks like the picture that Arch
posted at http://www.gcbr.com/H20pump.jpg. However, the impeller in the
pictures looks larger than the impeller on the pump that I purchased.

Vic Marks
Vancouver BC

 

[vic marks]

I posted this a few days ago but didn't see any responses. Can anyone tell
me if the pump that I purchased seems exactly the same as the Cinnabar
pump?

On my recent quest for a 100amp alternator, I was also in search of a new
NAPA waterpump. However, the NAPA's that I called didn't have any reference
to the 412265-d24. They suggested that I purchase a 551120 (and this is
indeed the number in the parts interchange index). Is this the correct
pump? It was for a 455 Olds with air conditioning. The cost varied from $48
to $55 between stores (shades of Autozone) and was a new pump. I purchased
it (at the higher cost of course!) but haven't installed it as yet. The
impeller measures 3.5 inches and the pump looks like the picture that Arch
posted at http://www.gcbr.com/H20pump.jpg. However, the impeller in the
pictures looks larger than the impeller on the pump that I purchased.

Vic Marks
Vancouver BC

 

[gene]

Have you looked on my web page ?? I have pictures up there that show all of
the various types.

gene

>I posted this a few days ago but didn't see any responses. Can anyone tell
>me if the pump that I purchased seems exactly the same as the Cinnabar
>pump?
>
>On my recent quest for a 100amp alternator, I was also in search of a new
>NAPA waterpump. However, the NAPA's that I called didn't have any reference
>to the 412265-d24. They suggested that I purchase a 551120 (and this is
>indeed the number in the parts interchange index). Is this the correct
>pump? It was for a 455 Olds with air conditioning. The cost varied from $48
>to $55 between stores (shades of Autozone) and was a new pump. I purchased
>it (at the higher cost of course!) but haven't installed it as yet. The
>impeller measures 3.5 inches and the pump looks like the picture that Arch
>posted at http://www.gcbr.com/H20pump.jpg. However, the impeller in the
>pictures looks larger than the impeller on the pump that I purchased.
>
>Vic Marks
>Vancouver BC
>
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/

 

[john wright]

Vic,
This is the latest on the Water pumps,
http://www.california.com/~eagle/watpump.html Take a look and at what
listed. I personally would use only a closed impeller pump.

J.R. Wright

>
> I posted this a few days ago but didn't see any responses. Can anyone tell
> me if the pump that I purchased seems exactly the same as the Cinnabar
> pump?
>
> On my recent quest for a 100amp alternator, I was also in search of a new
> NAPA waterpump. However, the NAPA's that I called didn't have any reference
> to the 412265-d24. They suggested that I purchase a 551120 (and this is
> indeed the number in the parts interchange index). Is this the correct
> pump? It was for a 455 Olds with air conditioning. The cost varied from $48
> to $55 between stores (shades of Autozone) and was a new pump. I purchased
> it (at the higher cost of course!) but haven't installed it as yet. The
> impeller measures 3.5 inches and the pump looks like the picture that Arch
> posted at http://www.gcbr.com/H20pump.jpg. However, the impeller in the
> pictures looks larger than the impeller on the pump that I purchased.
>
> Vic Marks
> Vancouver BC

 

[vic marks]

Have you looked on my web page ?? I have pictures up there that show all of
the various types.

Gene: thanks very much. I just took a look. From the discussion over the
past month, am I not correct is assuming that the picture of the pump at
the bottom is indeed the one being supplied by Cinnabar these days. Perhaps
I misunderstood but I thought Les Coughlin had been quoted as saying "yes,
this is the correct pump". Also, can anybody tell me what the diameter is
of the stamped impeller?

The address at Gene's site is:

http://www.california.com/~eagle/watpump.html

I'm thinking now that I should just return the stamped model and get the
one from Ray Curtis for about the same $. However, I assume that it is a
rebuilt unit and the pump from NAPA is new. Any comments people? Also,
who's part number is 412265-d24.

Vic Marks
Vancouver BC

 

[gene]

I guess I do not know for sure, I thought Cinnabar was selling the TRW
pump with the enclosed impeller. Does any one know??

gene

>
>Have you looked on my web page ?? I have pictures up there that show all of
>the various types.
>
>Gene: thanks very much. I just took a look. From the discussion over the
>past month, am I not correct is assuming that the picture of the pump at
>the bottom is indeed the one being supplied by Cinnabar these days. Perhaps
>I misunderstood but I thought Les Coughlin had been quoted as saying "yes,
>this is the correct pump". Also, can anybody tell me what the diameter is
>of the stamped impeller?
>
>The address at Gene's site is:
>
>http://www.california.com/~eagle/watpump.html
>
>I'm thinking now that I should just return the stamped model and get the
>one from Ray Curtis for about the same $. However, I assume that it is a
>rebuilt unit and the pump from NAPA is new. Any comments people? Also,
>who's part number is 412265-d24.
>
>Vic Marks
>Vancouver BC
>
>
>
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/