GA WIW: GM Auxiliary Fuel Tank 2004 Suburban - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**w314speed** · 04-29-2016, 05:52 AM

Found a 2004 Suburban with two GM fuel tanks with a splitter fuel neck. WIW and rarity? Thanks, Dan

**w314speed** · 05-05-2016, 05:32 PM

Has anyone ever seen a 2004 Suburban with factory dual tanks?Thanks, Dan

**cst204x4** · 05-05-2016, 10:26 PM

Just wondering where is second tank mounted?

**w314speed** · 05-06-2016, 05:34 PM

Quote:

Originally Posted by cst204x4

Just wondering where is second tank mounted?

It was mounted above the spare tire. So, I assume it is a gravity feed system. The filler neck is a one hole filler that splits into two fill hoses. Both tanks had the plastic GM cover to protect from minor impacts/penetrations. I found that in 01 or 02 they had an auxiliary tank with RPO code NGY, I think. I think it was 20 gals. This BURB was C2500 8.1L with what looks like steel security bars behind the rear seat and all glass areas, but the glove box was gone so I can't identify the stuff correctly. Thanks for the interest! Dan

95 S_Trucker · 05-07-2016, 09:11 PM

Every 3/4 ton suburban from 01-06 that I've seen had that dual tank set up. I regularly work on 3 of them.

I have no idea on the value of them.

**w314speed** · 05-09-2016, 05:34 AM

Quote:

Originally Posted by 95 S_Trucker

Every 3/4 ton suburban from 01-06 that I've seen had that dual tank set up. I regularly work on 3 of them.

I have no idea on the value of them.

Thanks for the info! Dan

04-29-2016, 05:52 AM	#1
w314speed Senior Member Join Date: Jun 2005 Location: atlanta Posts: 2,315	WIW: GM Auxiliary Fuel Tank 2004 Suburban Found a 2004 Suburban with two GM fuel tanks with a splitter fuel neck. WIW and rarity? Thanks, Dan

05-05-2016, 05:32 PM	#2
w314speed Senior Member Join Date: Jun 2005 Location: atlanta Posts: 2,315	Re: WIW: GM Auxiliary Fuel Tank 2004 Suburban Has anyone ever seen a 2004 Suburban with factory dual tanks?Thanks, Dan

05-05-2016, 10:26 PM	#3
cst204x4 Senior Member Join Date: Jan 2012 Location: corunna michigan Posts: 2,006	Re: WIW: GM Auxiliary Fuel Tank 2004 Suburban Just wondering where is second tank mounted? __________________ 1970 CST 4x4 collecting nos parts for this project 1972 cutlass owned since 1984 1972 cutlass conv 1970 Cutlass conv 1981 chevy shortbox 1986 grand national 2004 2500HD Crew Cab 66,000 miles

05-07-2016, 09:11 PM	#5
95 S_Trucker Registered User Join Date: Oct 2009 Location: . Posts: 2,187	Re: WIW: GM Auxiliary Fuel Tank 2004 Suburban Every 3/4 ton suburban from 01-06 that I've seen had that dual tank set up. I regularly work on 3 of them. I have no idea on the value of them.

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