Update For Ethanol Submersible Hose (Page 1/2)
fierofool AUG 24, 09:20 AM
Some have had problems locating ethanol submersible fuel hose. I have found that NAPA has the hose. They apparently changed the part numbers when the product was upgraded. Runs about $40 for a one-foot length.

The part number for the 5/16 ID (0.3125" ID) submersible fuel injection hose is NBH H209. If you need a 3/8 ID, the part number is NBH H213. The short piece of hose needed to connect the fuel pump to the sending unit metal line is 3/8 inch ID. The size needed at the discharge end of the metal line going to the engine bay is 5/16 ID. My local price for a foot in the Atlanta area is about $33 and $40, respectively.

From the manufacturer:
Submersible Fuel Line Hose is capable of handling multiple types of gasoline and fuels, including gasoline, alcohol-extended gasoline, ethanols, biodiesel or diesel fuel in fully-immersed, mobile and stationary applications. Most fuel lines are only designed to handle fuel on the interior of the hose, which can be damaged if the exterior is exposed to fuel. Engineered for fully submersible use, these hoses are excellent for use on gas tank fuel pumps.


Comprised of an FKM tube and cover with synthetic fiber reinforcement
Exceeds required SAE 30R10 standard
Temperature Range: -40 Deg. F to +302 Deg. F (-40 Deg. C to +150 Deg. C)
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« Last Edit: August 23, 2022, 11:02:30 PM by Fierofool »
theogre AUG 24, 10:47 AM
NAPA corp has PN's 5/16" and 3/8" Submersible Hose but local stores often don't have 1 or both in stock. More so w/ 3/8".

Like Gates 27097 3/8" x 1 foot is near impossible to find.

------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave

fierofool AUG 24, 11:46 AM
True. My local store just 5 miles away has to order it, then there's shipping costs added. Fortunately, Atlanta has several distribution center stores and there's one near most Georgia Fiero Club members, in Norcross, Ga. that has both in stock. There's also another center in Sylvester, in South Georgia.
theogre AUG 24, 01:30 PM
Dayco 80160 and other 5/16" x 1' Submersible Hose is fairly easy to find on Amazon (@ $25.98) and more.

vs Many list 3/8" like Jeggs but out of stock on the page or when you order it.

NAPA is about the only store "chain" that wants to add shipping...
AZ and many others often have same (depend on order time) or next day for many parts and w/o shipping charge. Even Pep Boys before closing most or all stores didn't add shipping.
Like a few weeks ago I had AZ store getting 3/4" heater hose next day from dist in NJ. She called other several local stores and they didn't have it too.

NAPA, Parts Plus, and some others are Franchise Operations and NAPA like old Kenmore etc from Sears jack the price just putting a label on the part and often have very little to no warranty on most everything.
Patrick AUG 24, 03:33 PM
I found another option a couple of years ago (that I didn't use due to high shipping costs to Canada) which might be viable.

Gates - 121652 - 7.3mm ID / 3" length - $8.95

3" might appear to be short, but that's all that's required for this application. I believe 7.3mm should be close enough to 5/16" to fit properly.

[This message has been edited by Patrick (edited 08-24-2022).]

theogre AUG 24, 05:16 PM

quote
Originally posted by Patrick:
I found another option a couple of years ago (that I didn't use due to high shipping costs to Canada) which might be viable.

Gates - 121652 - 7.3mm ID / 3" length - $8.95

3" might appear to be short, but that's all that's required for this application. I believe 7.3mm should be close enough to 5/16" to fit properly.

It might... Think 5/16" is more like ~ 8mm. 3/8" more like 10mm. Not digging thru exact conversion.

⚠️ Careful: Stretching hose to fit isn't a good plan. Might work only for a short time then fail and leave you stranded later.

Remember that a hard tube say 5/16" etc OD but also have "flares" to keep them from blowing off the hose when clamps are tiniest bit loose. That forces the hose to stretch more then just the tube.
Patrick AUG 24, 05:47 PM

quote
Originally posted by theogre:

It might... Think 5/16" is more like ~ 8mm.

⚠️ Careful: Stretching hose to fit isn't a good plan. Might work only for a short time then fail and leave you stranded later.



I wouldn't be surprised at all if 7.3mm hose is exactly the same size as hose marketed as 5/16 inch. Probably all comes off the same production line. Even if there is a slight difference, I doubt that "stretching" a 7.3mm hose 0.7mm to 8.0mm is anything to be concerned about.

[This message has been edited by Patrick (edited 08-24-2022).]

fierofool AUG 24, 06:31 PM
I measured the metal tube on a sending unit. It is 0.315 at it's smallest point but it has a flare ring as it transitions to a larger size. Don't remember what that measurement was, but I think the hose is supposed to go over that flare. If that's the case, hose size should be determined by the outlet size of the fuel pump. I've always heard that the proper size is 5/16".
Patrick AUG 24, 06:38 PM

This is the sending unit and fuel pump from my '84. If there's a flare anywhere on there (I don't see one), it's awfully small.
Will AUG 29, 09:19 PM
"Bead" would be the better term.
I also double clamp the pressure lines.