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#1
09-17-2025, 02:42 PM
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1986 Fuel Tank Selector Valve
My 1986 C10 Silverado has dual fuel tanks. The OEM fuel tank selector valve (not the switch) has failed. The OEM valve has 1/4" fuel return lines. The replacement U7000, U7001, FV 5, 8F1312, FSV2A/K, 42-159 all have 5/16" return line nipples. The associated steel lines are 1/4". The above valves cannot be installed in place of the OEM valve. Is there a correct replacement fuel tank selector valve that has 1/4" fuel return lines to match the OEM valve?
Reference: GM#12336290, 12336291 
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#2
09-24-2025, 08:19 AM
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Re: 1986 Fuel Tank Selector Valve
I went to a Chevy dealership (Hendricks) and spent about 15 minutes working with a parts guy and came up with the following: The OEM part number for the valve with the 3/8"-1/4" nipples is 14029228 which is discontinued. If you can't find one of these you have to re-engineer the selector valve. The space is very limited so good luck with that. Pollak made a replacement but that is also discontinued. I don't know what the Pollak part number is but I purchased one off Ebay. Apparently, these are unobtanium and are solid gold- based on the price. Even so, my time is worth money and I chose to pass on the re-engineering approach.
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