1966 Pontiac Bonneville Convertible Sending Unit for Gastank
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cavikingPontiac
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1966 Pontiac Bonneville Convertible Sending Unit for Gastank
I am trying to get a part number or help finding a new Sending Unit,
All part places recommends the wrong one...
Do anyone know what sending unit I should be looking for,
I do have a photo of the one in my tank, if someone could tell me what part number I have.
All part places recommends the wrong one...
Do anyone know what sending unit I should be looking for,
I do have a photo of the one in my tank, if someone could tell me what part number I have.
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mikeluscher159
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Re: 1966 Pontiac Bonneville Convertible Sending Unit for Gas
Have you checked Rockauto?
- CMNTMXR57
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Re: 1966 Pontiac Bonneville Convertible Sending Unit for Gas
Do you have A/C?
Reason I ask, is that this is what I found in the 1966 Pontiac Service Manual;

So with this in mind, I hit up both Rock Auto and AutoZone. Both offer the Spectra Premium 3/8 outlet units (FG88B). This unit would appear to be a non-A/C unit.
Which if you DON'T have A/C, and you have the FG88D pump, I think you're ok. It's fuel line may not match the illustration above, but the seal/gasket, cam lock, and unit look identical. If you have A/C, You will want one with the vapor line.
Reason I ask, is that this is what I found in the 1966 Pontiac Service Manual;
With that said, here is the service manual illustration (8 - 6 as mentioned above);Because of the difference in construction and location of the fuel tanks, two different fuel tank gauge units are required for standard and station wagon models. Two additional fuel tank gauge units are required (one for standard, one for station wagons) to accomodate cars equipped with A/C (fig. 8 - 6). In all A/C cars, a vapor return line runs alongside the gas line from the vapor separator can, at the fuel pump, to the fuel tank and prevents vapor from entering the fuel line to the carburetor by bleeding off or separating the vapor from the gas and returning it to the fuel tank, greatly reducing the possibility of vapor lock.

So with this in mind, I hit up both Rock Auto and AutoZone. Both offer the Spectra Premium 3/8 outlet units (FG88B). This unit would appear to be a non-A/C unit.
Which if you DON'T have A/C, and you have the FG88D pump, I think you're ok. It's fuel line may not match the illustration above, but the seal/gasket, cam lock, and unit look identical. If you have A/C, You will want one with the vapor line.

Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*
Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ
Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2011 Camaro SS
2009 Pontiac G8 GT: L76, Sport Red Metallic
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2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... RIP
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cavikingPontiac
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Re: 1966 Pontiac Bonneville Convertible Sending Unit for Gas
I appreciate all response I am lost about this.
I did try the FG88B from spectra but it looks very different from mine, see included pic
I don't have AC
I did try the FG88B from spectra but it looks very different from mine, see included pic
I don't have AC
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cavikingPontiac
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Re: 1966 Pontiac Bonneville Convertible Sending Unit for Gas
How do I add a picture to my posts ?
- CMNTMXR57
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Re: 1966 Pontiac Bonneville Convertible Sending Unit for Gas
Would it look something like this?
https://www.yearone.com/Product/1964-72-gto/2112nr
To post pics you have to load them to a site like photobucket, flickr, etc..
The link them here using the image tagging feature. For example "insertlinktoyourimagehere[/ i m g]"
Just take the qoutations out and the spaces in "img"
https://www.yearone.com/Product/1964-72-gto/2112nr
To post pics you have to load them to a site like photobucket, flickr, etc..
The link them here using the image tagging feature. For example "insertlinktoyourimagehere[/ i m g]"
Just take the qoutations out and the spaces in "img"

Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*
Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ
Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2011 Camaro SS
2009 Pontiac G8 GT: L76, Sport Red Metallic
2004 GMC Sierra 2500HD: Victory Red - 8.1L Big Block and Allison
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... RIP
1999 Chevrolet Suburban: Sunset Gold Metallic - RIP
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cavikingPontiac
- SE Member

- Posts: 10
- Joined: Fri May 15, 2015 8:00 pm
- Year and Trim: 1966 Pontiac Bonneville Convertible 389-4
Re: 1966 Pontiac Bonneville Convertible Sending Unit for Gas
Very close look at the image of mine and let me know what you think

https://goo.gl/photos/93K1mo7MavS8tFdE8
https://goo.gl/photos/93K1mo7MavS8tFdE8
- CMNTMXR57
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Re: 1966 Pontiac Bonneville Convertible Sending Unit for Gas
Roger, that looks to be it. Other than the fitting on the end of the long tube of yours, the almost look identical.
Year One (the site from above), is where I went and looked. They have a couple more varieties. That is part #2112NR. 2114NR is the same, except it has that second EVAP return line (for A/C cars).
Year One (the site from above), is where I went and looked. They have a couple more varieties. That is part #2112NR. 2114NR is the same, except it has that second EVAP return line (for A/C cars).

Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*
Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ
Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2011 Camaro SS
2009 Pontiac G8 GT: L76, Sport Red Metallic
2004 GMC Sierra 2500HD: Victory Red - 8.1L Big Block and Allison
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... RIP
1999 Chevrolet Suburban: Sunset Gold Metallic - RIP
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cavikingPontiac
- SE Member

- Posts: 10
- Joined: Fri May 15, 2015 8:00 pm
- Year and Trim: 1966 Pontiac Bonneville Convertible 389-4
Re: 1966 Pontiac Bonneville Convertible Sending Unit for Gas
Thanks so much for your help and effort,
I tried to line up the new with the old in below link, It looks like that the new would be to tall even if the images is somewhat not quite the same.
Strange that there are no OEM product code for what I have.
https://goo.gl/photos/wqTjmzBd7gnv1uYp6
There are a shadow that is lined next to my current one, that is the new one from yearone
I tried to line up the new with the old in below link, It looks like that the new would be to tall even if the images is somewhat not quite the same.
Strange that there are no OEM product code for what I have.
https://goo.gl/photos/wqTjmzBd7gnv1uYp6
There are a shadow that is lined next to my current one, that is the new one from yearone

